JP7431718B2 - Hose/fittings matching system and hose/fittings matching method - Google Patents

Description

The present invention relates to a hose/metal fitting matching system and a hose/metal fitting matching method.

Conventionally, machines that are powered by fluid pressure (for example, hydraulic pressure), such as construction machinery (for example, hydraulic excavators, wheel loaders, etc.) and factory equipment (for example, injection molding machines, die-casting machines, etc.), have traditionally been powered by fluid pressure (for example, hydraulic pressure). One or more hose bodies are attached to the fuselage to conduct forces (eg, US Pat. The hose body includes a hose and a pair of metal fittings connected to both ends of the hose.

Japanese Patent Application Publication No. 2010-163752

In general, depending on the combination of the hose and the metal fittings in the hose body attached to the aircraft body, problems are likely to occur in the hose body due to the behavior of the hose body during operation of the machine body. However, in the past, it was difficult to select a combination of hose and fittings suitable for attachment to the aircraft body.

An object of the present invention is to provide a hose/metal fitting matching system and a hose/metal fitting matching method that allow selection of a combination of hoses and fittings suitable for attachment to an airframe.

The hose/metal fitting matching system of the present invention is
A hose/metal fitting matching system that matches the hose and the metal fittings in a hose body that includes a hose and a pair of metal fittings connected to both ends of the hose,
The hose body is configured to be attached to a machine body,
The hose/fittings matching system is
an input section;
storage section,
a processing section;
Equipped with
The storage unit is
For each of the plurality of hoses, hose identification information, operating pressure information, diameter information, hose rigidity information, and hose dimension information regarding dimensions of the hose other than the diameter information are stored in association with each other; hose specification database,
For each of the plurality of metal fittings, metal fitting identification information, operating pressure information, diameter information, metal fitting shape information, and metal fitting dimensional information regarding dimensions of the metal fitting other than the aperture information are stored in association with each other; Metal fittings specification database,
It has
The processing unit includes:
an extraction process of respectively extracting the hose identification information and the metal fitting identification information, which are associated with the working pressure information and bore diameter information input in the input section, from the hose specification database and the metal fitting specification database;
Based on hose body initial position information regarding the initial position of both ends of the hose body inputted in the input unit, and hose body movable range information regarding the movable range of both ends of the hose body during operation of the aircraft body. Then, from among the hose identification information and the metal fitting identification information extracted in the extraction process, the hose identification information and the metal fitting identification information corresponding to the combination of the hose and the metal fitting most suitable for attachment to the aircraft body. a matching process of performing the matching by selecting a combination of;
I do.
According to the hose/metal fitting matching system of the present invention, it is possible to select a combination of a hose and a fitting suitable for attachment to the aircraft body.

In the hose/metal fitting matching system of the present invention,
In the matching process, the processing unit includes:
The hose specification database is configured for any one of the hose identification information among the hose body initial position information and the hose body movable range information inputted by the input unit and the hose identification information extracted in the extraction process. The hose rigidity information and the hose dimension information associated with each other in the metal fitting specification database are associated with any one or two of the metal fitting identification information extracted in the extraction process. Based on the input information including the metal fitting shape information and the metal fitting size information that have been obtained, the behavior of the hose body during operation of the aircraft is continuously controlled using a hose body model that imitates the hose body. Simulating, simulation processing,
Based on the results of the simulation process, (a) determining the presence or absence of an abnormality based on whether or not a predetermined portion of the hose body of the hose body is excessively twisted; (c) determining the presence or absence of an abnormality based on whether the hoses of the hose body have contacted each other; (c) determining the presence or absence of an abnormality based on whether the hoses of the hose body have contacted each other; Aircraft contact determination; (d) determining the presence or absence of an abnormality based on whether the hose of the hose body is excessively bent; bending determination; (e) determining whether or not the hose of the hose body is reversed; at least one of the following: (f) a reversal determination in which the presence or absence of an abnormality is determined based on whether or not the mouth of the hose of the hose body has been excessively deformed; judgment processing,
If it is determined that there is no abnormality in the determination process, the combination of the hose identification information and the metal fitting identification information corresponding to the hose and the metal fitting targeted for the simulation process is set to the hose most suitable for attachment to the aircraft body. and a selection process of selecting a combination of the hose identification information and the metal fitting identification information corresponding to the combination of the metal fittings;
You may do so.
This makes it possible to select a combination of hose and metal fittings that is more suitable for attachment to the aircraft body.

In the hose/metal fitting matching system of the present invention,
The storage unit is configured to identify the hose most suitable for attachment to the aircraft in relation to the hose body initial position information, the hose body movable range information, and the hose body initial position information and the hose body movable range information. further comprising a preferred combination database that stores information and combinations of the metal fitting identification information in association with each other;
In the matching process, the processing unit extracts the hose body initial position information and the hose body movable range information input by the input unit from the hose identification information and the metal fitting identification information extracted in the extraction process. The combination of the hose identification information and the metal fittings identification information, which are associated with each other in the preferred combination database, is combined with the hose identification information and the metal fittings corresponding to the combination of the hose and the metal fittings that are most suitable for attachment to the aircraft body. It may be selected as a combination of the metal fitting identification information.
This makes it possible to select a combination of hose and metal fittings that is more suitable for attachment to the aircraft body.

In the hose/metal fitting matching system of the present invention,
The processing unit includes:
The hose body initial position information, the hose body movable range information, the hose rigidity information and the hose dimension information associated with any one of the hose identification information in the hose specification database, and the metal fitting specification database. Using a hose body model imitating the hose body, the a simulation process that continuously simulates the behavior of the hose body during operation of the aircraft;
Based on the results of the simulation process, (a) a twist determination that determines the presence or absence of an abnormality based on whether a predetermined hose body portion of the hose body is excessively twisted; (b) the hose of the plurality of hose bodies; (c) determining whether there is an abnormality based on whether the hose of the hose body has contacted a predetermined body part of the aircraft; (d) a bending determination that determines the presence or absence of an abnormality based on whether the hose of the hose body is bent excessively; (e) a bending determination that determines the presence or absence of an abnormality based on whether the hose of the hose body is reversed. and (f) a lip determination that determines whether there is an abnormality based on whether or not the mouth of the hose of the hose body has been excessively deformed. Judgment processing and
If it is determined that there is no abnormality in the determination process, the hose body initial position information used in the simulation process, the hose body movable range information used in the simulation process, the hose targeted for the simulation process, and the a preferred combination storage process of storing a combination of the hose identification information and the metal fitting identification information corresponding to a metal fitting in the preferable combination database;
may be further performed.
This makes it possible to select a combination of hose and metal fittings that is more suitable for attachment to the aircraft body.

In the hose/metal fitting matching system of the present invention,
Further equipped with an output section,
Preferably, the processing section further performs a combination output process of causing the output section to output the combination of the hose identification information and the metal fitting identification information selected in the matching process.
This allows the user to understand the combination of hose and fittings suitable for attachment to the aircraft body.

In the hose/metal fitting matching system of the present invention,
The processing unit is configured to calculate the operating pressure information associated with the one hose identification information in the hose specification database based on the working pressure information associated with the one hose identification information in the hose specification database. further performing a correction process of correcting the hose rigidity information and the hose dimension information;
After the correction process, the processing unit may perform the simulation process using the input information including the hose rigidity information and the hose dimension information corrected in the correction process.
This makes it possible to select a combination of hose and metal fittings that is more suitable for attachment to the aircraft body.

The hose/metal fitting matching method of the present invention is as follows:
A hose/metal fitting matching method using a hose/metal fitting matching system that matches the hose and the metal fittings in a hose body having a hose and a pair of metal fittings connected to both ends of the hose. There it is,
The hose body is configured to be attached to a machine body,
The hose/fittings matching system is
an input section;
storage section and
a processing section;
Equipped with
The storage unit includes:
For each of the plurality of hoses, hose identification information, working pressure information, diameter information, hose rigidity information, and hose dimension information regarding dimensions of the hose other than the diameter information are stored in association with each other; hose specification database,
For each of the plurality of metal fittings, metal fitting identification information, operating pressure information, diameter information, metal fitting shape information, and metal fitting dimension information regarding dimensions of the metal fitting other than the aperture information are stored in association with each other; Metal fittings specification database,
It has
The hose/fittings matching method is as follows:
The processing unit extracts, from the hose specification database and the fitting specification database, the hose identification information and the fitting identification information that are associated with the working pressure information and diameter information input in the input unit, respectively. step and
The processing unit is configured to input hose body initial position information regarding the initial positions of both ends of the hose body, which is input through the input unit, and hose body information regarding the movable range of both ends of the hose body during operation of the machine. Based on the movable range information, from among the hose identification information and the metal fitting identification information extracted in the extraction step, the hose identification information corresponding to the combination of the hose and the metal fitting most suitable for attachment to the aircraft body. and a matching step of performing the matching by selecting a combination of the metal fitting identification information;
including.
According to the hose/metal fitting matching method of the present invention, it is possible to select a combination of a hose and a fitting suitable for attachment to the aircraft body.

According to the present invention, it is possible to provide a hose/metal fitting matching system and a hose/metal fitting matching method that allow selection of a combination of a hose and a fitting suitable for attachment to an aircraft body.

1 is a block diagram schematically showing a hose/metal fitting matching system according to an embodiment of the present invention. It is an image diagram showing an image of an example of a machine provided with a hose body. 2 is a flowchart showing the operation of the hose/metal fitting matching system of FIG. 1. FIG. FIG. 2 is an image diagram for explaining the hose specification database of FIG. 1. FIG. FIG. 2 is an image diagram for explaining the metal fitting specification database of FIG. 1. FIG. FIG. 2 is an image diagram for explaining the hose/metal fitting matching method according to the first embodiment of the present invention, and is an image diagram showing the attachment structure of the hose body to the aircraft body, which is the subject of simulation. FIG. 7 is an image diagram for explaining the hose/metal fitting matching method according to the first embodiment of the present invention, and is an image diagram showing a simulation model simulating part of the hose body and the aircraft body of FIG. 6. FIG. 9 is an image diagram for explaining the hose/metal fitting matching method according to the first embodiment of the present invention, in which the torque in the simulation using the simulation model shown in FIG. 7 is shown by a solid line, and the torque in the simulation using the simulation model shown in FIG. It is an image graph showing the torque in the simulation with a broken line. FIG. 8 is an image diagram for explaining the hose/metal fitting matching method according to the first embodiment of the present invention, and is an image diagram showing a simulation model into which hose body attachment information different from the simulation model shown in FIG. 7 has been input. 10 is an image diagram for explaining the hose/metal fitting matching method according to the first embodiment of the present invention, and is an image diagram showing an image of the attachment structure of the hose body to the aircraft body, corresponding to the simulation model shown in FIG. 9. FIG. FIGS. 11(a) and 11(b) are image diagrams for explaining a hose/metal fitting matching method according to a second embodiment of the present invention, and FIGS. 11(a) and 11(b) are image diagrams showing images of simulation models in different states. It is. FIGS. 12A and 12B are image diagrams for explaining a hose/metal fitting matching method according to a second embodiment of the present invention, and FIGS. 12A and 12B are simulations shown in FIGS. 11A and 11B. FIG. 7 is an image diagram showing images of the models in different states. It is an image diagram for explaining the hose/metal fitting matching method according to the fourth embodiment of the present invention, and is an image diagram showing an image of how a simulation model operates. 14 is an image diagram for explaining the hose/metal fitting matching method according to the fourth embodiment of the present invention, and is an image graph showing the bending radius at each position of the hose part of the hose body model of the simulation model shown in FIG. 13. be. It is an image diagram for explaining the hose/metal fitting matching method according to the fifth embodiment of the present invention, and is an image diagram showing an image of the forward movement of the simulation model. It is an image diagram for explaining the hose/metal fitting matching method according to the fifth embodiment of the present invention, and is an image diagram showing an image of the return operation of the simulation model. It is an image diagram for explaining the hose/metal fitting matching method according to the sixth embodiment of the present invention, and is an image diagram showing an image of how a simulation model operates. 18 is an image diagram for explaining a hose/metal fitting matching method according to a sixth embodiment of the present invention, and shows an image of how a simulation model to which hose body attachment information different from the simulation model shown in FIG. 17 is input operates. FIG. FIG. 3 is a block diagram schematically showing a hose/metal fitting matching system according to another embodiment of the present invention. 20 is a diagram for explaining the preferred combination database of FIG. 19. FIG.

The hose/fitting matching system and the hose/fitting matching method of the present invention can be applied to fluid pressure, for example, construction machinery (for example, hydraulic excavators, wheel loaders, etc.) and factory equipment (for example, injection molding machines, die-casting machines, etc.). In machines powered by hydraulic power (for example, hydraulic pressure), it is suitable for use in selecting a combination of hoses and fittings suitable for attachment to the fuselage.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a hose/metal fitting matching system and a hose/metal fitting matching method according to the present invention will be described by way of example with reference to the drawings.
Common components in each figure are given the same reference numerals.

[One embodiment of hose/fittings matching system]
First, the configuration of a hose/metal fitting matching system 1 according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a block diagram schematically showing a hose/metal fitting matching system 1 according to an embodiment of the present invention. Figure 2 shows an example of a machine 4'. The hose/fittings matching system 1 is configured to select a combination of hose 21' and fittings 221', 222' suitable for attachment to the aircraft body 3'.
A user of the hose/metal fitting matching system 1 may be, for example, a manufacturer of the hose body 2'. The manufacturer of the hose body 2' will, for example, install the hose body 2' on the aircraft body 3' for the first time, or when there is a problem with the hose body 2' that has already been installed on the aircraft body 3'. The hose/fitting matching system 1 can be used to suggest to the manufacturer of the machine 4' a combination of hose 21' and fittings 221', 222' suitable for attachment to the machine 4'.

The machine 4' (Fig. 2) is powered by fluid pressure (for example, hydraulic pressure), and is, for example, a construction machine (for example, a hydraulic excavator or a wheel loader) or a factory equipment (for example, an injection molding machine or a die-casting machine). etc.) etc. In FIG. 2, machine 4' is configured as a construction machine.
As shown in FIG. 2, the machine 4' includes a body 3' and one or more hose bodies 2'. The machine 4' is constructed by attaching one or more of these hose bodies 2' to a body 3'.
The hose body 2' is configured to transmit fluid (eg oil) and thereby conduct hydraulic forces. The hose body 2' includes a hose 21' and a pair of metal fittings 221' and 222' connected to both ends of the hose 21'. Hereinafter, one of the pair of metal fittings 221' and 222' of the hose body 2' will be referred to as a "first metal fitting 221'" and the other will be referred to as a "second metal fitting 222'." Further, in the following, among both ends 2a' and 2b' of the hose body 2', the end 2a' on the first metal fitting 221' side is referred to as "first end 2a'", and the end 2a' on the second metal fitting 222' side is referred to as "first end 2a'". The end 2b' is referred to as the "second end 2b'." The first end 2a' of the hose body 2' is the end of the first metal fitting 221' opposite to the hose 21'. The second end 2b' of the hose body 2' is the end of the second metal fitting 222' on the opposite side to the hose 21'. The first metal fitting 221' and the second metal fitting 222' are each attached to the body 3'.
The hose 21' includes, for example, at least one or more rubber layers and/or one or more resin layers. The hose 21' may further include one or more metal layers and/or one or more fibrous layers. The hose 21' has elasticity and flexibility.
The metal fittings 221' and 222' have a tubular shape. The first metal fitting 221' and the second metal fitting 222' include, for example, tubular fittings. The first metal fitting 221' and the second metal fitting 222' may include a tubular adapter in addition to the cap fitting. The first metal fitting 221' and the second metal fitting 222' have, for example, a screw (male or female thread), and when the screw is tightened to a screw provided on the body 3', the body 3'. Alternatively, the first metal fitting 221' and the second metal fitting 222' may be attached to the body 3' by a method other than screw tightening. The first metal fitting 221' and the second metal fitting 222' may be formed into any shape, for example, may be formed into an I-shape that extends linearly, or may be formed into a curved shape in the middle of their extension. It may be configured in an L-shape having a bent portion. The first metal fitting 221' and the second metal fitting 222' may have the same configuration or may have different configurations.
Note that FIG. 2 is only an example of the machine 4', and the machine 4' may have a configuration different from that of FIG. 2.

Returning to FIG. 1, the hose/metal fitting matching system 1 includes a processing section 11, a storage section 12, an input section 13, and an output section 14. The hose/metal fitting matching system 1 may be composed of one device (for example, a personal computer, a server, a tablet, etc.) or may be composed of a plurality of devices.

The processing unit 11 is configured to control the entire hose/fitting matching system 1 including the storage unit 12, the input unit 13, and the output unit 14 by executing the program P stored in the storage unit 12. ing. The specific processing of the processing unit 11 will be described later.
The processing unit 11 includes, for example, one or more processors such as a CPU (Central Processing Unit).
Communication between the processing unit 11 and each of the storage unit 12, input unit 13, and output unit 14 may be wired communication or wireless communication.

The storage unit 12 stores a program P executed by the processing unit 11, a hose specification database HDB, a fitting specification database TDB, and various information used in processing performed by the processing unit 11.
The storage unit 12 includes, for example, one or more ROMs, one or more RAMs, and the like. Further, the storage unit 12 may be configured from an external storage device such as a memory card (USB or the like). Further, the storage unit 12 may be an internal memory of a processor that constitutes the processing unit 11.
The program P stored in the storage unit 12 includes, for example, a simulation program PS and a matching program PM. The processing unit 11 performs a simulation process, which will be described later, by executing a simulation program PS. The processing unit 11 performs various processes other than the simulation process (for example, a judgment process, a selection process, a combination output process, etc., which will be described later) by executing the matching program PM. However, the processing unit 11 may perform processing other than the simulation processing (for example, the determination processing described below) by executing the simulation program PS.
As shown in FIG. 4, the hose specification database HDB includes hose identification information, working pressure information, caliber information, hose rigidity information, and hose dimensions other than caliber information for each of the plurality of hoses 21'. The hose size information is stored in association with the hose size information. The hose identification information is information that identifies the hose 21' (specifically, the type of hose 21'). The working pressure information is information regarding the pressure of the fluid flowing inside the hose 21'. The working pressure specified by the working pressure information may be, for example, the maximum working pressure predefined by the manufacturer of the hose body 2', or may be the pressure that is actually normally used. . The caliber information is information regarding the caliber (for example, inner diameter) of the hose 21'. The hose rigidity information is information regarding the rigidity (preferably bending rigidity) of the hose 21'. The hose size information includes, for example, a hose length method regarding the length of the hose 21' and/or hose outer diameter information regarding the outer diameter of the hose 21'. The hose specification database HDB may further store information other than these in association with each of the plurality of hoses 21'.
As shown in FIG. 5, the metal fitting specification database TDB includes metal fitting identification information, working pressure information, caliber information, metal fitting shape information, and metal fittings other than caliber information for each of the plurality of metal fittings 221' and 222'. and metal fitting dimension information regarding the dimensions of are stored in association with each other. The metal fitting identification information is information that identifies the metal fittings 221', 222' (specifically, the types of the metal fittings 221', 222'). The working pressure information is information regarding the pressure of the fluid flowing inside the fittings 221' and 222'. The working pressure specified by the working pressure information may be, for example, the maximum working pressure predefined by the manufacturer of the hose body 2', or may be the pressure that is actually normally used. . The diameter information is information regarding the diameter (for example, inner diameter) of the metal fittings 221' and 222'. The metal fitting shape information is information regarding the shape of the metal fittings 221' and 222', such as whether the metal fittings 221' and 222' are I-shaped or L-shaped, and if they are L-shaped, the bent portion. This is information that specifies the bending angle, etc. The metal fitting dimension information includes, for example, the metal fitting length regarding the length of the metal fittings 221' and 222' (for example, the overall length and/or the length between the bent part and the end in the case of an L-shape). Contains information. The fitting specification database TDB may further store information other than these in association with each of the plurality of fittings 221' and 222'.

The input unit 13 includes, for example, a keyboard, a mouse, and/or push buttons, and accepts input from the user.

The output unit 14 is configured to output various information, such as information input by the input unit 13 and information stored in the storage unit 12, as a result of processing by the processing unit 11. The output unit 14 includes a display unit 141 configured to display characters, images, videos, and the like. The display unit 141 includes, for example, a display or a monitor. The display section 141 and the input section 13 may constitute a touch panel. The output unit 14 may include an audio output unit configured to output audio. The audio output section includes, for example, a speaker or the like. The output unit 14 may include a printing unit configured to print on a medium such as paper. The printing unit includes, for example, a printer.

[First to sixth embodiments of hose/metal fitting matching method]
Next, with reference to FIGS. 3 to 18, hose/metal fitting matching methods according to the first to sixth embodiments of the present invention will be described. The hose/metal fitting matching method according to the first to sixth embodiments described below is suitable for attachment to a machine body 3' in a machine 4' (FIG. 2) in which a hose body 2' is attached to a machine body 3'. This is used to select a suitable combination of hose 21' and metal fittings 221' and 222', and uses the hose/metal fitting matching system 1 according to the embodiment of the present invention described above.

First, referring mainly to FIG. 3, an outline of the hose/metal fitting matching method according to the first to sixth embodiments of the present invention will be explained. As shown in FIG. 3, the hose/metal fitting matching method according to the first to sixth embodiments of the present invention includes an input step S1, an extraction step S2, a matching step S3, a combination output processing step S4, can include.

In the input step S1, operating pressure information, diameter information, hose body initial position information, and hose body movable range information are input through the input unit 13 by a user's operation. The working pressure information is information regarding the working pressure of the hose body 2' (and in turn, the hose 21' and the fittings 221' and 222'). The caliber information is information regarding the caliber of the hose body 2' (and in turn, the hose 21' and the metal fittings 221' and 222'). The hose body initial position information is information regarding the initial position (position in the initial state) of both ends 2a' and 2b' of the hose body 2'. The hose body movable range information is information regarding the movable range of both ends 2a' and 2b' of the hose body 2' while the machine body 3' is in operation.

In the extraction step S2, the processing unit 11 extracts from the hose specification database HDB and the metal fitting specification database TDB the hose identification information and metal fitting identification information that are associated with the working pressure information and diameter information input in the input unit 13 in the input step S1. , and performs an extraction process to extract each of them.
The processing unit 11 performs the extraction step S2 by executing the matching program PM (FIG. 1).

In the matching step S3, the processing unit 11 determines the hose identification extracted in the extraction step S2 (as a result, in the extraction process) based on the hose body initial position information and hose body movable range information inputted in the input unit 13 in the input step S1. Matching is performed by selecting the combination of hose identification information and metal fitting identification information that corresponds to the most suitable combination of hose 21' and metal fittings 221' and 222' for attachment to the aircraft body 3' from among the information and metal fitting identification information. Perform matching processing.
The matching step S3 (eventually the matching process) can include a simulation step (eventually the simulation process), a judgment step (eventually the judgment process), and a selection step (eventually the selection process).

In the simulation step, the processing unit 11 extracts any one of the hose identification information extracted in the extraction step S2 (extracting process) and the metal fitting identification information extracted in the extraction step S2 (extracting process). One or two of the metal fitting identification information are selected, and the hose body initial position information and hose body movable range information inputted in input step S1 are selected, and the hose is Hose rigidity information and hose dimension information that are associated in the specification database HDB, and metal fitting shape information and metal fitting dimensional information that are correlated in the metal fitting specification database TDB for the selected one or two metal fitting identification information. Based on the input information including, using the simulation model M (for example, FIG. 7), a simulation process is performed in which the behavior of the hose body 2' during the operation of the aircraft body 3' is continuously simulated. As a result, a simulation is performed targeting the hose 21' and the metal fittings 221' and 222' corresponding to the selected hose identification information and metal fitting identification information, respectively. When the pair of metal fittings 221' and 222' to be simulated have the same configuration, the processing unit 11 selects one metal fitting identification information. When the pair of metal fittings 221' and 222' to be simulated have different configurations, the processing unit 11 selects two pieces of metal fitting identification information.
The simulation model M includes at least one or more hose body models 2 that imitate the hose body 2'. The simulation model M may further include one or more aircraft models 3 that imitate a part of the aircraft 3'.
The processing unit 11 performs a simulation step by executing the simulation program PS (FIG. 1). The processing unit 11 may perform the simulation process using a known simulation technique such as finite element analysis (FEA).

In the judgment step, the processing unit 11 performs (a) twist judgment, (b) hose contact judgment, (c) body contact judgment, (d) bend judgment, and (e ) Judgment processing is performed to perform at least one of (f) reversal judgment and (f) mouth judgment.
In the twist determination, the processing unit 11 determines whether there is an abnormality based on whether a predetermined hose body portion of the hose body 2' is excessively twisted. The twist determination will be described later with reference to FIGS. 6 to 10.
In the hose contact determination, the processing unit 11 determines whether there is an abnormality based on whether or not the hoses 21' of the plurality of hose bodies 2' have contacted each other. The hose contact determination will be described later with reference to FIGS. 11 and 12.
In the aircraft contact determination, the processing unit 11 determines whether there is an abnormality based on whether or not the hose 21' of the hose body 2' has contacted the aircraft body 3'. The determination of aircraft contact is not shown in the drawings, but will be described later.
In the bending determination, the processing unit 11 determines whether there is an abnormality based on whether or not the hose 21' of the hose body 2' is excessively bent. The bending determination will be described later with reference to FIGS. 13 and 14.
In the reversal determination, the processing unit 11 determines whether there is an abnormality based on whether or not the hose 21' of the hose body 2' has been reversed. The reversal determination will be described later with reference to FIGS. 15 and 16.
In the mouth determination, the processing unit 11 determines whether there is an abnormality based on whether the mouth of the hose 21' of the hose body 2' has been excessively deformed. Mouth determination will be described later with reference to FIGS. 17 and 18.
The processing unit 11 may perform the determination step by executing the matching program PM (FIG. 1), or may perform the determination step by executing the simulation program PS (FIG. 1).

If the processing unit 11 determines that there is an abnormality in the determination step (and by extension, the determination process), it performs the simulation step (and by extension, the simulation process) and the determination step (determination step) again. At this time, the processing unit 11 selects at least one of the hose identification information and the metal fitting identification information in the simulation step (as a result, the simulation process) and the judgment step (judgment step). Among them, select one that is different from the original used in the previous simulation step. As a result, a simulation is performed for a combination of hose 21' and metal fittings 221' and 222' that corresponds to a combination of hose identification information and metal fitting identification information that is different from the previous simulation.

In the selection step, if the processing unit 11 determines that there is no abnormality in the determination step (as a result, in the determination process), the processing unit 11 identifies the hose corresponding to the hose 21' and the metal fittings 221' and 222' that are the targets of the simulation step (as a result, in the simulation process). A selection process in which a combination of information and metal fitting identification information is selected as a combination of hose identification information and metal fitting identification information that corresponds to the combination of hose 21' and metal fittings 221' and 222' that is most suitable for attachment to the aircraft body 3'. I do.

In the combination output processing step S4, the processing section 11 performs a combination output processing in which the output section 14 outputs the combination of the hose identification information and the metal fitting identification information selected in the matching step S3 (as a result, the matching processing).
The processing unit 11 performs a combination output processing step by executing the matching program PM (FIG. 1).

By performing the extraction step S2 (and thus the extraction process) and the matching step S3 (and thus the matching process) described above, it is possible to select a combination of the hose 21' and the fittings 221' and 222' suitable for attachment to the aircraft body 3'. can.

<First embodiment of hose/metal fitting matching method - when determining twist>
Here, the hose/metal fitting matching method according to the first embodiment of the present invention will be described in detail with reference to FIGS. 6 to 10. In the first embodiment, the processing unit 11 performs a twist determination in the determination step (and thus the determination process) of the matching step S3 (and the matching process).

The input step S1 and the extraction step S2 are as described above.

Next, matching step S3 (matching processing) will be explained. The matching step S3 (eventually the matching process) includes a simulation step (eventually the simulation process), a judgment step (eventually the judgment process), and a selection step (eventually the selection process).
FIG. 6 shows an image of a part of the machine 4' that is the object of simulation in the simulation step (and thus the simulation process) in this example. The machine 4' may be, for example, a construction machine (eg, a hydraulic excavator, a wheel loader, etc.) or a factory equipment (eg, an injection molding machine, a die-casting machine, etc.). Note that the configuration of the machine 4' shown in FIG. 6 is only an example, and the torsion determination may be performed on any part of the machine 4' having any configuration.
In the example of FIG. 6, the first metal fitting 221' of the hose body 2' is attached to a part of the body 3' that is fixed to the main body of the body 3', and the second metal fitting 221' of the hose body 2'222' is attached to a rotating part 32' of the body 3' that rotates relative to the main body of the body 3'. The central axis of the rotating part 32' constitutes the rotation axis 3c' of the rotating part 32'. The rotational axis 3c' of the rotating part 32' is fixed to the main body of the fuselage 3'. The rotating part 32' is provided on the fixed part 33' of the body 3'. During operation of the machine body 3', the first end 2a' of the hose body 2' is fixed in position with respect to the main body of the machine body 3' and does not move, whereas the second end 2b of the hose body 2'' rotates around the rotation axis 3c' with respect to the main body of the machine body 3', together with the rotating part 32' of the machine body 3'.

First, in the simulation step (as a result, the simulation process), the processing unit 11 extracts any one hose identification information from among the hose identification information extracted in the extraction step S2 (as a result, in the extraction process), and Select one or two of the metal fitting identification information extracted in step S1, and combine the hose body initial position information and hose body movable range information input in input step S1 with the selected one. Hose rigidity information and hose dimension information associated with the hose identification information in the hose specification database HDB, and metal fitting shape information associated with the selected one or two metal fitting identification information in the metal fitting specification database TDB. A simulation model M is constructed based on the input information including the information and the metal fittings dimension information. In this example, a simulation model M shown by a solid line in FIG. 7 is constructed based on input information. The simulation model M shown by the solid line in FIG. 7 is in the initial state SS. The simulation model M in FIG. 7 simulates the hose body 2' and a part of the machine body 3' (specifically, the rotating part 32') shown in FIG. The simulation model M of this example includes a hose body model 2 that imitates the hose body 2' shown in FIG. Model 3. The hose body model 2 includes a hose portion 21 and a pair of metal fittings 221 and 222 connected to both ends of the hose portion 21. Among the pair of metal parts 221 and 222, one is the first metal part 221 and the other is the second metal part 222. The hose portion 21 is a portion imitating the hose 21' of the hose body 2'. The first metal fitting part 221 and the second metal fitting part 222 are parts imitating the first metal fitting 221' and the second metal fitting 222' of the hose body 2', respectively. Of both ends 2a and 2b of the hose body model 2, the end 2a on the first metal fitting part 221 side is the first end 2a, and the end 2b on the second metal fitting part 222 side is the second end 2b. It is. A first end 2a and a second end 2b of the hose body model 2 correspond to a first end 2a' and a second end 2b' of the hose body 2', respectively. The hose body model 2 may have a solid rod shape or a hollow tube shape. The fuselage model 3 has a rotating section 32. The rotating part 32 is a part imitating the rotating part 32' of the aircraft body 3'.

If the simulation model M includes the aircraft model 3 as in this example, aircraft information is further input in input step S1.

The processing unit 11 sets the initial positions (positions in the initial state SS) of both ends 2a and 2b of the hose body model 2 based on the hose body initial position information.
The processing unit 11 sets the rigidity of the hose portion 21 of the hose body model 2 based on the hose rigidity information. Here, it is preferable that "rigidity" specifically refers to bending rigidity. The rigidity of the hose portion 21 is set uniformly over the entire hose portion 21, for example.
The processing unit 11 sets the dimensions of the hose portion 21 of the hose body model 2 based on the hose dimension information. Preferably, the hose size information includes at least hose length information regarding the length of the hose 21'. In that case, the processing unit 11 sets the length of the hose portion 21 of the hose body model 2 based on the hose length information. The hose size information may include hose outer diameter information regarding the outer diameter of the hose 21'. In that case, the processing unit 11 sets the outer diameter of the hose portion 21 of the hose body model 2 based on the hose outer diameter information.
The processing unit 11 sets the shapes and dimensions of the metal fittings 221 and 222 of the hose body model 2 based on the metal fitting shape information and the metal fitting size information. When the processing unit 11 selects any one of the metal fitting identification information extracted in the extraction step S2 (extracting process), the processing unit 11 associates the selected metal fitting identification information with the metal fitting specification database TDB. The shapes and dimensions of the metal fittings 221 and 222 of the hose body model 2 are set based on the metal fitting shape information and metal fitting size information obtained. In this case, the shapes and dimensions of the metal parts 221 and 222 are the same. On the other hand, when the processing unit 11 selects any two of the metal fitting identification information extracted in the extraction step S2 (extracting process), the processing unit 11 handles the two selected metal fitting identification information using the metal fitting specification database TDB. The shapes and dimensions of the metal parts 221 and 222 of the hose body model 2 are set based on the attached metal fitting shape information and metal fitting size information. In this case, the shapes and/or dimensions of the metal parts 221 and 222 are different from each other. In this example, the first metal fitting 221' of the hose body 2', and by extension the first metal fitting part 221 of the hose body model 2, are I-shaped, and the second metal fitting 222' of the hose body 2' and, by extension, the hose body model The second metal part 222 of No. 2 is L-shaped.
The processing unit 11 may set the rigidity of the metal parts 221 and 222 of the hose body model 2 to a predetermined value set in advance. In that case, the rigidity of the metal parts 221 and 222 of the hose body model 2 is set higher than the rigidity specified by the hose rigidity information.

The aircraft information is information regarding a predetermined portion of the aircraft body 3' (specifically, in this example, the rotating section 32'). The aircraft information is used to construct an aircraft model 3 that imitates the predetermined portion of the aircraft 3'.
The aircraft information includes aircraft shape information regarding the shape of the predetermined portion of the fuselage 3', initial position information regarding the initial position (position in the initial state) of the predetermined portion of the fuselage 3', and initial position of the predetermined portion of the aircraft 3'. It is preferable to include aircraft initial orientation information regarding the orientation (orientation in the initial state). The processing unit 11 determines the shape, initial position (position in the initial state SS), and initial orientation (in the initial state SS) of the aircraft model 3 based on the aircraft shape information, the aircraft initial position information, and the aircraft initial orientation information. direction) respectively. The aircraft information may include aircraft rigidity information regarding the rigidity of the predetermined portion of the aircraft 3'. In that case, the processing unit 11 sets the rigidity of the aircraft model 3 based on the aircraft rigidity information. The stiffness specified by the body stiffness information is higher than the stiffness specified by the hose stiffness information.
When the predetermined portion of the aircraft body 3' moves during operation of the aircraft body 3', it is preferable that the aircraft information further includes aircraft movable range information. The aircraft movable range information is information regarding the movable range of the predetermined part of the fuselage 3', and specifically, how much the predetermined part of the fuselage 3' changes from its initial state during operation of the aircraft 3'. This is information that specifies whether or not it will move. The processing unit 11 sets the movable range of the body model 3 based on the body movable range information, and specifically sets how much and how the body model 3 moves from the initial state SS. In the example of FIG. 7, the aircraft movement information indicates that the rotating part 32 rotates from the initial state SS to one side in the circumferential direction (clockwise in FIG. 7) around the rotation axis 3c by a predetermined angle (dashed line in FIG. 7); After that, it is specified that the rotation axis 3c is rotated to the other side in the circumferential direction (counterclockwise in FIG. 7) by a predetermined angle and returned to the initial state SS.
However, the aircraft information may not include the aircraft movable range information, that is, the aircraft model 3 may be set to be fixed and not move. Alternatively, the aircraft information may not be input in the input step S1, that is, the simulation model M may not include the aircraft model 3.

The hose body movable range information is information regarding the movable range of both ends 2a' and 2b' of the hose body 2' during operation of the machine body 3', and specifically, the movable range of both ends 2a' and 2b' of the hose body 2'. 2b' is information specifying how much and how the aircraft body 3' moves from the initial state during operation. The processing unit 11 sets the movable range of both ends 2a and 2b of the hose body model 2 based on the hose body movable range information, and specifically, sets the movable range of both ends 2a and 2b of the hose body model 2 in the initial state. Set how much and how to move from SS. In the example of FIG. 7, the hose body movable range information indicates that the first end 2a is fixed without moving, and the second end 2b is integrated with the rotating part 32 of the aircraft model 3 from the initial state SS. , rotates by a predetermined angle to one side in the circumferential direction (clockwise in FIG. 7) around the rotation axis 3c (dashed line in FIG. 7), and then unites with the rotating part 32 of the aircraft model 3 to rotate around the rotation axis 3c. It is specified that the rotation is rotated by a predetermined angle to the other side in the circumferential direction (counterclockwise in FIG. 7) and then returned to the initial state SS.

In this specification, for convenience, the state of the simulation model M when the simulation model M moves to the maximum extent from the initial state SS is referred to as the "maximum limit state SM", and the state of the simulation model M when the movement of the simulation model M ends is referred to as the "maximum limit state SM". The state of model M is called "final state SF." The maximum limit state SM of the simulation model M corresponds to the state of the hose body 2' and the machine body 3' when the machine body 3' moves to the maximum extent from the initial state. The final state SF may be the same as the initial state SS, or the maximum limit state SM, or may be different from both the initial state SS and the maximum limit state SM. In this example, the maximum limit state SM is such that the second end 2b of the hose body model 2 and the rotating part 32 of the body model 3 are moved from the initial state SS to one side in the circumferential direction (clockwise in FIG. 7) around the rotation axis 3c. ) is the state of the simulation model M when rotated by a predetermined angle (dashed line in FIG. 7), and the final state SF is such that the second end 2b of the hose body model 2 and the rotating part 32 of the fuselage model 3 are at their maximum limits. This is the state of the simulation model M when the simulation model M is rotated by a predetermined angle in the other circumferential direction (counterclockwise in FIG. 7) around the rotation axis 3c from the state SM, and is the same as the initial state SS.
In addition, in this specification, for convenience, the operation of the simulation model M when it moves from the initial state SS to the maximum limit state SM is referred to as a "forward motion", and the operation of the simulation model M when it moves from the initial state SS to the maximum limit state SM is referred to as a "forward motion". The operation of the simulation model M when moving to the state SF is called "return operation." If the final state SF is the same as the maximum limit state SM, the simulation model M performs only a forward operation and does not perform a backward operation.

In the simulation step, the processing unit 11 uses the simulation model M (in this example, the hose body model 2 and the aircraft body model 3) to determine the behavior of the hose body 2' during the operation of the aircraft body 3', based on the input information. Perform simulation processing to continuously simulate.
In the simulation process, the processing unit 11 calculates the shape of the hose part 21 of the hose body model 2 in the initial state SS based on the hose body initial position information, hose rigidity information, and hose dimension information in the input information, and also calculates the shape of the hose part 21 of the hose body model 2 in the initial state SS. Based on the hose body movable range information, hose rigidity information, etc. in the information, the state of the hose body model 2 at each predetermined time after the initial state SS (the orientation of the metal parts 221 and 222, the shape of the hose part 21, etc.) ).
Note that when the aircraft model 3 moves as in this example, the aircraft model 3 may be made to move according to the aircraft information in the input information during the simulation (in that case, the processing unit 11 determines the behavior of the aircraft model 3). Alternatively, the processing unit 11 may simulate the behavior of the aircraft model 3 based on the aircraft information.

After the simulation step, in the determination step, the processing unit 11 performs determination processing based on the result of the simulation step (and thus the simulation processing). In this embodiment, the processing unit 11 performs twist determination in the determination process. In the twist determination, the processing unit 11 determines whether there is an abnormality based on whether a predetermined hose body portion of the hose body 2' is excessively twisted. In this example, the predetermined hose body portion is the second end 2b' of the hose body 2'. When the processing unit 11 determines that the predetermined hose body portion of the hose body 2′ is excessively twisted, it determines that there is an abnormality, and on the other hand, it determines that the predetermined hose body portion of the hose body 2′ is not excessively twisted. If so, it is determined that there is no abnormality.
The predetermined hose body portion to be subjected to the twist determination may be a part or all of the metal fitting 221' or 222' (in this example, the end 2b' of the second metal fitting 222') as in this example. Alternatively, it may be a part or all of the hose portion 21, or the entire hose body 2. If the metal fitting 221' or 222' is twisted excessively, there is a risk that the connection between the metal fitting 221' or 222' and the fuselage 3' will become loose, which may lead to fluid leakage. If the predetermined hose body portion to be determined for twisting is part or all of the metal fitting 221' or 222' (in this example, the end 2b of the second metal fitting 222'), the machine 4' It is possible to avoid selecting a combination of the hose 21' and the fittings 221', 222' that would cause loosening of the connection between the fittings 221' or 222' and the fuselage 3' during use. . Furthermore, if the hose 21' is twisted excessively, there is a risk that the hose 21' will be damaged. If the predetermined hose body portion to be determined is part or all of the hose section 21, the hose 21' and the metal fittings 221', 222 may be damaged during use of the machine 4'. It becomes possible to avoid selecting combinations of '.

Here, in the twist determination, the processing unit 11 determines, based on the results of the simulation process, that the predetermined hose body portion (in this example, the second A torque determination may be made to determine whether the predetermined hose body portion is excessively twisted based on whether the torque at the end portion 2b') exceeds a predetermined torque threshold.
Note that the above torque may be defined to be positive (+) or negative (-) depending on the direction, or may be defined to be always positive (+) regardless of the direction. In the former case, in the comparison with the predetermined torque threshold, the absolute value of torque and the predetermined torque threshold are compared.
This will be explained with reference to FIG. In the graph of FIG. 8, the solid line indicates a predetermined hose body model portion (in this example, the second end portion) of the hose body model 2 that corresponds to the predetermined hose body portion in the simulation using the simulation model M of the example of FIG. 2b) shows the torque (exponent value) acting on it. In the graph of FIG. 8, the horizontal axis is the time (in seconds) during the operation of the simulation model M, and the vertical axis is the predetermined hose body model portion of the hose body model 2 (specifically, the second end 2b). ) is the torque (exponential value) that acts on In the example of FIG. 8, the torque is defined to be positive (+) or negative (-) depending on the direction. In this way, the processing unit 11 acts on the predetermined hose body model portion of the hose body model 2 at each predetermined time during the operation of the simulation model M in the simulation of the simulation step (further, during the operation of the aircraft body 3'). Calculate the torque (index value) for each. This torque calculation may be performed in the simulation step or in the determination step. Then, in the torque determination in the determination step, the processing unit 11 selects the torque at each time during the operation of the simulation model M (specifically, in this example, the absolute value of the torque) and the predetermined torque threshold Tt (FIG. ), and as a result, if it is determined that the torque at the predetermined hose body model portion of the hose body model 2 exceeds the predetermined torque threshold Tt at any time during the operation of the simulation model M, the It is determined that the predetermined hose body model portion and thus the predetermined hose body portion are excessively twisted at any time during the operation of the fuselage 3'; In this case, it is determined that the predetermined hose body model portion and the predetermined hose body portion are not excessively twisted.
Note that when the predetermined hose body portion to be subjected to torque determination is not a single point but a wide portion (for example, the entire hose body 2'), the processing unit 11 determines the operation of the simulation model M. The torque ( The index value) is calculated respectively. Then, in the torque determination in the determination step, the torque at each position of the predetermined hose body model portion at each time during the operation of the simulation model M is compared with the predetermined torque threshold Tt, and as a result, the torque at each position of the predetermined hose body model portion at each time during the operation of the simulation model If it is determined that the torque in at least a part of the predetermined hose body model portion of the hose body model 2 exceeds the predetermined torque threshold Tt at any time during the operation of the fuselage 3', At the time of , it is determined that the predetermined hose body model portion and thus the predetermined hose body portion are excessively twisted.On the other hand, at any time during the operation of the aircraft 3', the predetermined hose body model It is determined that the portion, and thus the predetermined hose body portion, was not excessively twisted.
Note that the solid line waveform in FIG. 8 indicates that the absolute value of the torque of the predetermined hose body model portion (second end portion 2b) exceeds the predetermined torque threshold Tt at a plurality of times during the operation of the simulation model M. Therefore, in the torque determination, the processing unit 11 determines that the predetermined hose body model portion (second end portion 2b) and the It is determined that the predetermined hose body portion (second end 2b') is excessively twisted. Therefore, it can be seen that the combination of the hose 21' and the fittings 221' and 222' (FIG. 6) corresponding to the simulation model M in the example of FIG. 7 is not appropriate.

Alternatively, in the twist determination, the processing unit 11 determines whether the predetermined hose body portion (in this example, the second end The amount of twist may be determined by determining whether or not the predetermined hose body portion is excessively twisted based on whether the amount of twist in the portion 2b') exceeds a predetermined twist amount threshold.
The amount of twist may be defined to be positive (+) or negative (-) depending on the direction, or may be defined to be always positive (+) regardless of the direction. In the former case, in the comparison with the predetermined twist amount threshold, the absolute value of the twist amount and the predetermined twist amount threshold are compared.
In this case, the processing unit 11 corresponds to the predetermined hose body portion of the hose body model 2 at each predetermined time during the operation of the simulation model M in the simulation of the simulation step (and by extension, during the operation of the aircraft body 3'). The amount of twist acting on a predetermined hose body model portion (in this example, the second end 2b) is calculated. This amount of twist may be calculated in the simulation step or in the determination step. Then, in determining the amount of twist in the determination step, the processing unit 11 compares the amount of twist at each time during the operation of the simulation model M with a predetermined amount of twist, and as a result, determines the amount of twist during the operation of the simulation model M. If it is determined that the twist amount in the predetermined hose body model portion of the hose body model 2 exceeds the predetermined twist amount threshold at any time, the predetermined hose It is determined that the body model part and thus the predetermined hose body part are excessively twisted, and on the other hand, in other cases, at any time during the operation of the aircraft body 3', the predetermined hose body model part and the predetermined hose body part is determined to have not been twisted excessively.
Note that when the above-mentioned predetermined hose body portion to be subjected to the twist amount determination is not a single point but a portion having a width (for example, the entire hose body 2'), the processing unit 11 uses the simulation model M. Torsion that acts at each position at predetermined intervals along the extending direction of the predetermined hose body model portion of the hose body model 2 at each predetermined time during operation (and by extension, during operation of the aircraft body 3'). Calculate each quantity (index value). In determining the amount of twist in the determination step, the amount of twist at each position of the predetermined hose body model portion at each time during the operation of the simulation model M is compared with a predetermined twist amount threshold, and as a result, the If it is determined that at any time during the operation of the model M, the amount of twist in at least a part of the predetermined hose body model portion of the hose body model 2 exceeds the predetermined twist amount threshold, At any time during the operation of the aircraft 3', it is determined that the predetermined hose body model portion and thus the predetermined hose body portion are excessively twisted; It is determined that the hose body model portion and thus the predetermined hose body portion are not excessively twisted.

Alternatively, in the twist determination, the processing unit 11 determines whether the predetermined hose body portion (in this example, the second end 2b'), determining whether or not the predetermined hose body portion is excessively twisted based on whether or not the rotation angle of the hose body 2' around the central axis exceeds a predetermined rotation angle threshold; You can also judge the angle.
Note that the rotation angle may be defined to be positive (+) or negative (-) depending on the orientation, or may be defined to be always positive (+) regardless of the orientation. In the former case, in the comparison with the predetermined rotation angle threshold, the absolute value of the rotation angle and the predetermined rotation angle threshold are compared.
In this case, the processing unit 11 corresponds to the predetermined hose body portion of the hose body model 2 at each predetermined time during the operation of the simulation model M in the simulation of the simulation step (and by extension, during the operation of the aircraft body 3'). The rotation angle around the central axis of the hose body model 2 that acts on a predetermined hose body model portion (in this example, the second end 2b) is calculated. Calculation of this rotation angle may be performed in the simulation step or in the determination step. Then, in determining the rotation angle in the determination step, the processing unit 11 compares the rotation angle at each time during the operation of the simulation model M with a predetermined rotation angle threshold, and as a result, the processing unit 11 compares the rotation angle at each time when the simulation model M is operating. If it is determined that the rotation angle of the predetermined hose body model portion of the hose body model 2 exceeds the predetermined rotation angle threshold at any time, the predetermined hose It is determined that the body model part and the above-mentioned predetermined hose body part are excessively twisted, and in other cases, the predetermined hose body model part and the above-mentioned predetermined hose body part are determined to be twisted at any time during the operation of the machine body 3'. It is judged that it was not twisted excessively.
Note that when the above-mentioned predetermined hose body portion to be subjected to the rotation angle determination is not a single point but a portion having a width (for example, the entire hose body 2'), the processing unit 11 uses the simulation model M. Rotation that acts on each position of the hose body model 2 at predetermined intervals along the extending direction of the predetermined hose body model portion at each predetermined time during operation (and by extension, during operation of the aircraft body 3'). Calculate each angle (index value). Then, in determining the rotation angle in the determination step, the rotation angle at each position of the predetermined hose body model portion at each time during the operation of the simulation model M is compared with the predetermined rotation angle threshold, and as a result, the simulation If it is determined that at any time during the operation of the model M, the rotation angle of at least a part of the predetermined hose body model portion of the hose body model 2 exceeds the predetermined rotation angle threshold, At any time during the operation of the aircraft 3', it is determined that the predetermined hose body model portion and thus the predetermined hose body portion are excessively twisted; It is determined that the hose body model portion and thus the predetermined hose body portion are not excessively twisted.

In the twist determination, the processing unit 11 may perform any number of determinations among the above-mentioned torque determination, twist amount determination, and rotation angle determination. In this case, in the twist determination, if the predetermined hose body portion is determined to be excessively twisted in each of the plurality of determinations, the processing unit 11 determines that there is an abnormality, and otherwise determines that there is no abnormality. You may. Alternatively, in the twist determination, if the predetermined hose body portion is determined to be excessively twisted in at least one of the plurality of determinations, the processing unit 11 determines that there is an abnormality, and in other cases, there is no abnormality. You may judge that.

If the processing unit 11 determines that there is an abnormality in the determination step (and by extension, the determination process), it performs the simulation step (and by extension, the simulation process) and the determination step (determination step) again. At this time, when selecting at least one of the hose identification information and the metal fitting identification information in the simulation step (as a result, the simulation process), the processing unit 11 selects the information from the previous simulation step among those extracted in the extraction step S2. Choose a different one from the one used in . Then, in the simulation step (as a result, the simulation process), the processing unit 11 uses the hose body initial position information and hose body movable range information input in the input step S1, and the hose specification database for the selected one hose identification information. Includes hose rigidity information and hose dimension information that are associated in the HDB, and metal fitting shape information and metal fitting size information that are correlated in the metal fitting specification database TDB with respect to the selected one or two metal fitting identification information, The above simulation is performed based on the input information. As a result, a simulation is performed for a combination of hose 21' and metal fittings 221' and 222' that corresponds to a combination of hose identification information and metal fitting identification information that is different from the previous simulation.

When the processing unit 11 determines that there is no abnormality in the judgment step (and in the judgment process), in the selection step (and in the selection process), the processing unit 11 makes the objects (the hose body 21 and the metal fittings 221, 222) The combination of hose identification information and metal fitting identification information corresponding to the hose 21' and metal fittings 221', 222' is determined by selecting the hose 21' and metal fittings 221', 222' that are most suitable for attachment to the aircraft body 3'. Select as a combination of hose identification information and metal fitting identification information corresponding to the combination.

Note that the processing unit 11 may set the initial orientation (orientation in the initial state SS) of both ends 2a and 2b of the hose body model 2 in the simulation to the same predetermined orientation each time a simulation step is performed. Alternatively, the processing unit 11 repeatedly performs the simulation step and the judgment step using the same hose body model 2 while changing only the initial orientations of both ends 2a and 2b of the hose body model 2, and in the setting of either initial orientation. If it is determined that there is no abnormality in the judgment step, the combination of hose identification information and metal fitting identification information corresponding to the hose 21' and metal fittings 221' and 222' targeted in the simulation is determined to be the most suitable combination for installation on the aircraft body 3'. The combination of hose identification information and metal fitting identification information corresponding to the combination of the hose 21' and metal fittings 221' and 222' is selected. , select a combination of hose identification information and metal fitting identification information that is different from the original used in the previous simulation step (and change the hose body model 2 of simulation model M), and repeat the simulation step (and the simulation process). It is better to perform a judgment step.

After the determination step (as a result, the determination process), in the combination output process step S4 (as a result, the combination output process), the processing unit 11 performs the matching step S3 (as a result, the matching process) (specifically, the selection step (selection process)). The combination of the hose identification information and metal fitting identification information selected in step 1 is outputted to the output unit 14. In the combination output processing step S4 (as a result, the combination output processing), the processing unit 11 may, for example, display the combination of the hose identification information and the fitting identification information on the display unit 141 (FIG. 1), and/or The combination of the hose identification information and the metal fitting identification information may be outputted by the audio output section as a sound, and/or the combination of the hose identification information and the metal fitting identification information may be printed by the printing section.
According to the output process, the user can grasp the combination of the hose 21' and the metal fittings 221' and 222' that is most suitable for attachment to the aircraft body 3'.

Note that FIG. 9 shows an image of the simulation model M to which input information, which is different from the input information input to the simulation model M in the example of FIG. 7, has been input. The simulation model M in the example of FIG. 9 is different from the simulation model M in the example of FIG. Only the lengths of the metal fittings 221 and 222 set by the metal fitting size information of the metal fitting information are different. FIG. 10 shows an image of the attachment structure of the hose body 2' to the airframe 3', corresponding to the simulation model M of the example shown in FIG. In the graph of FIG. 8, the broken line indicates a predetermined hose body model portion (in this example, the second end portion) corresponding to the predetermined hose body portion of the hose body model 2 in the simulation using the simulation model M of the example of FIG. 2b) shows the torque (exponent value) acting on it. The torque shown by the broken line in FIG. 8 is less than or equal to the predetermined torque threshold Tt at all times during the operation of the simulation model M, and the torque shown by the broken line in FIG. It can be seen that the combination (FIG. 10) is appropriate.

<Second embodiment of hose/metal fitting matching method - when determining hose contact>
Next, a hose/metal fitting matching method according to a second embodiment of the present invention will be described in detail with reference to FIGS. 11 and 12. In the second embodiment, the processing unit 11 performs the hose contact determination in the determination step (and thus the determination process) of the matching step S3 (and the matching process). The steps other than the determination step are the same as those in the first embodiment, so their explanation will be omitted.
In the description of this embodiment, for the sake of convenience, illustration of the machine 4' to be simulated in the simulation step (as well as the simulation process) is omitted. The machine 4' may be, for example, a construction machine (eg, a hydraulic excavator, a wheel loader, etc.) or a factory equipment (eg, an injection molding machine, a die-casting machine, etc.).

FIGS. 11 and 12 show images of how the simulation model M operates in the simulation in the simulation step (and thus the simulation process) in this example. In this example, a simulation model M shown in FIG. 11(a) is constructed based on the input information. In FIG. 11(a), the simulation model M is in an initial state SS. In this example, the simulation model M includes a plurality of hose body models 2 that imitate each of the plurality of hose bodies 2', and a body model 3 that imitates a part of the body 3'.

In this embodiment, in input step S1, hose body initial position information and hose body movable range information are input for each of the plurality of hose bodies 2'. The working pressure information and diameter information are common to these plurality of hose bodies 2'. If the simulation model M includes the aircraft model 3 as in this example, aircraft information is further input in input step S1.
In this example, the aircraft information does not include aircraft movable range information, that is, the aircraft model 3 is fixed and does not move. The aircraft model 3 has a cylindrical shape. However, the aircraft information may include aircraft movable range information, that is, the aircraft model 3 may be set to move. Alternatively, the aircraft information may not be input in the input step S1, that is, the simulation model M may not include the aircraft model 3.
In the example of FIGS. 11 and 12, the hose body movable range information indicates that the second end 2b of each hose body model 2 is fixed without moving, and that the first end 2a of each hose body model 2 is integral with each other. Then, from the initial state SS (FIG. 11(a)), it rotates by a predetermined angle to one side in the circumferential direction (clockwise in FIGS. 11 and 12) around the rotation axis 3c (FIG. 11(b), 12(a), FIG. 12(b)), reaches the maximum limit state SM (FIG. 12(b)), and then becomes integral with each other around the rotational axis 3c on the other side in the circumferential direction (in FIGS. 11 and 12). It is specified that the final state SF is the same as the initial state SS by rotating by a predetermined angle (counterclockwise) (FIGS. 12(a), 11(b), and 11(a)). The rotation axis 3c is the central axis of the cylindrical shape of the aircraft model 3.

In the simulation step (as a result, the simulation process), the processing unit 11 extracts any one hose identification information from among the hose identification information extracted in the extraction step S2 (as a result, in the extraction process) and the hose identification information extracted in the extraction step S2 (as a result, in the extraction process). Select one or two pieces of metal fitting identification information from among the metal fitting identification information that has been selected, and input the hose body initial position information and hose body movable range information input in input step S1 (as a result, the input process), and the selected piece of metal fitting identification information. The hose rigidity information and hose dimension information that are associated with the one hose identification information selected in the hose specification database HDB, and the hose rigidity information and hose dimension information that are associated with the selected one or two metal fitting identification information in the metal fitting specification database TDB. Based on input information including metal fitting shape information and metal fitting dimension information, a simulation model M (in this example, a plurality of hose body models 2 and a fuselage model 3 each imitating a plurality of hose bodies 2') is used. , the behavior of each of the plurality of hose bodies 2' during operation of the aircraft body 3' is continuously simulated. Here, the processing unit 11 uses common hose rigidity information, hose dimension information, metal fitting shape information, and metal fitting size information for each hose body model 2.
In the simulation process, the processing unit 11 calculates the shape of the hose part 21 of each hose body model 2 in the initial state SS based on the hose body initial position information, hose rigidity information, and hose dimension information in the input information, and Based on the hose body movable range information, hose rigidity information, etc. in the input information, the state of each hose body model 2 at each predetermined time after the initial state SS (the orientation of the metal parts 221 and 222, the direction of the hose part 21, etc.) shape, etc.).
Note that when the simulation model M includes the aircraft model 3 and the aircraft model 3 is set to move, the aircraft model 3 may be made to move according to the aircraft information in the input information during the simulation. In this case, the processing unit 11 may not simulate the behavior of the aircraft model 3), or the processing unit 11 may simulate the behavior of the aircraft model 3 based on the aircraft information.

In the judgment step (and thus the judgment process), the processing unit 11 performs the judgment process based on the result of the simulation step (and thus the simulation process). In this embodiment, the processing unit 11 performs hose contact determination in the determination process. In the hose contact determination, the processing unit 11 determines whether there is an abnormality based on whether or not the hoses 21' of the plurality of hose bodies 2' have contacted each other. If the processing unit 11 determines that the hoses 21' of a plurality of hose bodies 2' have contacted each other (specifically, the hoses 21' of at least one pair of hose bodies 2' have contacted each other), the processing unit 11 detects an abnormality. On the other hand, it was determined that the hoses 21' of the plurality of hose bodies 2' did not come into contact with each other (specifically, the hoses 21' of any pair of hose bodies 2' did not come into contact with each other). If so, it is determined that there is no abnormality.
If the hoses 21' of the plurality of hose bodies 2' come into contact with each other, there is a risk that the hoses 21' may be damaged. According to the hose contact determination, it is possible to avoid selecting a combination of the hose 21' and the fittings 221', 222' that would cause damage to the hose 21' during use of the machine 4'.

Here, in the hose contact determination, the processing unit 11 determines whether the hoses 21' of the plurality of hose bodies 2' act on each other at any time during the operation of the aircraft body 3', based on the result of the simulation process. Hose contact energy determination may be made to determine whether or not the hoses 21' of the plurality of hose bodies 2' have contacted each other based on whether or not the contact energy exceeds a predetermined hose contact energy threshold.
Note that the above contact energy may be defined to be "positive (+)" or "negative (-)" depending on the orientation, or it may be defined so that it is always "positive (+)" regardless of the orientation. may be defined. In the former case, in the comparison with the predetermined hose contact energy threshold, the absolute value of the contact energy and the predetermined hose contact energy threshold are compared.
In this case, the processing unit 11 performs the following operations along the extending direction of the hose part 21 of each hose body model 2 at each predetermined time during the operation of the simulation model M (and by extension, during the operation of the aircraft body 3'). The contact energy acting on each position at each predetermined interval is calculated. This calculation of contact energy may be performed in the simulation step or in the determination step. In the hose contact energy determination in the determination step, the processing unit 11 calculates the contact energy at each position of the hose part 21 of each hose body model 2 at each time during the operation of the simulation model M and a predetermined hose contact energy threshold value. As a result, at any time during the operation of the simulation model M, the contact energy in at least a portion of the hose portion 21 of at least one of the pair of hose body models 2 exceeds a predetermined hose contact energy threshold. If it is determined that the hose parts 21 of the plurality of hose body models 2 (and, by extension, the hoses 21' of the plurality of hose bodies 2') have contacted each other at any time during the operation of the aircraft body 3'. However, in other cases, at any time during the operation of the machine body 3', the hose parts 21 of the plurality of hose body models 2 (and, by extension, the hoses 21' of the plurality of hose bodies 2') It is assumed that there was no contact. The black color in FIGS. 11(a) and 11(b) indicates the contacted portion of the hose portion 21.
The predetermined hose contact energy threshold may be set to zero or a value greater than zero.

Alternatively, in the hose contact determination, the processing unit 11 determines the contact between the hoses 21' of the plurality of hose bodies 2' at any time during the operation of the aircraft body 3', based on the results of the simulation process. A hose contact pressure determination may be made to determine whether the pressure exceeds a predetermined hose contact pressure threshold.
The above contact pressure may be defined to be "positive (+)" or "negative (-)" depending on the orientation, or may be defined so that it is always "positive (+)" regardless of the orientation. may be defined. In the former case, in the comparison with the predetermined hose contact pressure threshold, the absolute value of the contact pressure is compared with the predetermined hose contact pressure threshold.
In this case, the processing unit 11 performs the following operations along the extending direction of the hose part 21 of each hose body model 2 at each predetermined time during the operation of the simulation model M (and by extension, during the operation of the aircraft body 3'). The contact pressure acting on each position at each predetermined interval is calculated. Calculation of this contact pressure may be performed in the simulation step or in the determination step. Then, in determining the hose contact pressure in the determination step, the processing unit 11 calculates the contact pressure at each position of the hose part 21 of each hose body model 2 at each time during the operation of the simulation model M and the predetermined hose contact pressure threshold. As a result, at any time during the operation of the simulation model M, the contact pressure in at least a portion of the hose portion 21 of at least one pair of hose body models 2 exceeds a predetermined hose contact pressure threshold. If it is determined that the hose parts 21 of the plurality of hose body models 2 (and, by extension, the hoses 21' of the plurality of hose bodies 2') have contacted each other at any time during the operation of the aircraft body 3'. However, in other cases, at any time during the operation of the machine body 3', the hose parts 21 of the plurality of hose body models 2 (and, by extension, the hoses 21' of the plurality of hose bodies 2') It is assumed that there was no contact.
The predetermined hose contact pressure threshold may be set to zero or a value greater than zero.

Alternatively, in the hose contact determination, the processing unit 11 determines the contact between the hoses 21' of the plurality of hose bodies 2' at any time during the operation of the aircraft body 3', based on the results of the simulation process. A hose contact force determination may be made that determines whether the force exceeds a predetermined hose contact force threshold.
The contact force may be defined to be "positive (+)" or "negative (-)" depending on the direction, or it may be defined so that it is always "positive (+)" regardless of the direction. may be defined. In the former case, in the comparison with the predetermined hose contact force threshold, the absolute value of the contact force and the predetermined hose contact force threshold are compared.
In this case, the processing unit 11 performs the following operations along the extending direction of the hose part 21 of each hose body model 2 at each predetermined time during the operation of the simulation model M (and by extension, during the operation of the aircraft body 3'). The contact force acting on each position at each predetermined interval is calculated. This calculation of the contact force may be performed in the simulation step or in the determination step. In the hose contact determination in the determination step, the processing unit 11 calculates the contact force at each position of the hose portion 21 of each hose body model 2 at each time during the operation of the simulation model M and the predetermined hose contact force threshold. As a result, at any time during the operation of the simulation model M, the contact force in at least a portion of the hose portion 21 of at least one of the pair of hose body models 2 exceeds a predetermined hose contact force threshold. In this case, it is determined that the hose parts 21 of the plurality of hose body models 2 (and, by extension, the hoses 21' of the plurality of hose bodies 2') have come into contact with each other at some time during the operation of the aircraft body 3'. On the other hand, in other cases, the hose parts 21 of the plurality of hose body models 2 (and, by extension, the hoses 21' of the plurality of hose bodies 2') are in contact with each other at any time during the operation of the machine body 3'. judge that it did not.
The predetermined hose contact force threshold may be set to zero or a value greater than zero.

Alternatively, in the hose contact determination, the processing unit 11 determines, based on the result of the simulation process, that the relative distance between the hoses 21' of the plurality of hose bodies 2' is , a hose relative distance judgment may be made to determine whether or not the distance has become zero.
In this case, the processing unit 11 performs the following operations along the extending direction of the hose part 21 of each hose body model 2 at each predetermined time during the operation of the simulation model M (and by extension, during the operation of the aircraft body 3'). The relative distance between each position at each predetermined interval is calculated. This calculation of the relative distance may be performed in the simulation step or in the determination step. In the hose relative distance determination in the determination step, the processing unit 11 determines that the relative distance between the respective positions of the hose portions 21 of each hose body model 2 at each time during the operation of the simulation model M is 0. As a result, at any time during the operation of the simulation model M, the relative distance between at least some of the hose parts 21 of at least any pair of hose body models 2 becomes 0. If it is determined that the hose parts 21 of the plurality of hose body models 2 (and, by extension, the hoses 21' of the plurality of hose bodies 2') have come into contact with each other at any time during the operation of the aircraft body 3'. On the other hand, in other cases, at any time during the operation of the aircraft body 3', the hose parts 21 of the plurality of hose body models 2 (and, by extension, the hoses 21' of the plurality of hose bodies 2' ) is determined to have not made contact.

In the hose contact determination, the processing unit 11 may perform any plurality of determinations among the above-described hose contact energy determination, hose contact pressure determination, hose contact force determination, and hose relative distance determination. In that case, in the hose contact determination, the processing unit 11 determines that there is an abnormality if it is determined that the hoses 21' of the plurality of hose bodies 2' have contacted each other in each of the plurality of determinations, and in other cases. Therefore, it may be determined that there is no abnormality. Alternatively, in the hose contact determination, if it is determined that the hoses 21' of the plurality of hose bodies 2' have contacted each other in at least one of the plurality of determinations, the processing unit 11 determines that there is an abnormality; In this case, it may be determined that there is no abnormality.

<Third embodiment of hose/metal fitting matching method - when determining aircraft contact>
Next, although not shown, a hose/metal fitting matching method according to a third embodiment of the present invention will be described in detail. In the third embodiment, the processing unit 11 performs an aircraft contact determination in the determination step (and thus the determination process) of the matching step S3 (and the matching process). The steps other than the determination step are the same as those in the first embodiment, so their explanation will be omitted. The machine 4' may be, for example, a construction machine (eg, a hydraulic excavator, a wheel loader, etc.) or a factory equipment (eg, an injection molding machine, a die-casting machine, etc.).

In this example, the simulation model M includes a hose body model 2 that imitates the hose body 2', and a body model 3 that imitates a part of the body 3'.

In this embodiment, aircraft information is input in input step S1.
The aircraft information input in the input step S1 may include aircraft movable range information, that is, the aircraft model 3 may be set to move. Alternatively, the aircraft information input in the input step S1 may not include aircraft movable range information, that is, the aircraft model 3 may be fixed without moving.

In the judgment step (and thus the judgment process), the processing unit 11 performs the judgment process based on the result of the simulation step (and thus the simulation process). In this embodiment, the processing unit 11 performs a body contact determination in the determination process. In the aircraft contact determination, the processing unit 11 determines whether there is an abnormality based on whether or not the hose 21' of the hose body 2' has contacted the aircraft body 3'. If the processing unit 11 determines that the hose 21' of the hose body 2' has come into contact with the aircraft body 3', it determines that there is an abnormality; If it is determined that there is no abnormality, it is determined that there is no abnormality.
If the hose 21' of the hose body 2' comes into contact with the airframe 3', there is a risk that the hose 21' will be damaged. According to the machine contact determination, it is possible to avoid selecting a combination of the hose 21' and the fittings 221' and 222' that would cause damage to the hose 21' during use of the machine 4'.

Here, in the machine body contact determination, the processing unit 11 acts on the hose 21' of the hose body 2' from the machine body 3' at any time during the operation of the machine body 3', based on the result of the simulation process. Aircraft contact energy judgment may be made to determine whether or not the hose 21' of the hose body 2' has contacted the airframe 3' based on whether or not the contact energy exceeds a predetermined airframe contact energy threshold. .
Note that the above contact energy may be defined to be "positive (+)" or "negative (-)" depending on the orientation, or it may be defined so that it is always "positive (+)" regardless of the orientation. may be defined. In the former case, in the comparison with the predetermined body contact energy threshold, the absolute value of the contact energy and the predetermined body contact energy threshold shall be compared.
In this case, the processing unit 11 executes the process in the extending direction of the hose part 21 of the hose body model 2 from the machine body 3' at each predetermined time during the operation of the simulation model M (and by extension, during the operation of the machine body 3'). The contact energy acting on each position at each predetermined interval along is calculated. This calculation of contact energy may be performed in the simulation step or in the determination step. Then, in determining the body contact energy in the determination step, the processing unit 11 calculates the contact energy at each position of the hose part 21 of the hose body model 2 at each time during the operation of the simulation model M and a predetermined body contact energy threshold value. As a result, when it is determined that the contact energy in at least a part of the hose part 21 of the hose body model 2 exceeds the predetermined body contact energy threshold at any time during the operation of the simulation model M. , it is determined that the hose 21' of the hose body 2' has come into contact with the aircraft body 3' at any time during the operation of the aircraft body 3'; It is determined that the hose 21' of the hose body 2' did not come into contact with the aircraft body 3' at that time either.
The predetermined body contact energy threshold may be set to zero or a value greater than zero.

Alternatively, in the aircraft contact determination, the processing unit 11 acts on the hose 21' of the hose body 2' from the aircraft 3' at any time during the operation of the aircraft 3', based on the result of the simulation process. The body contact pressure may be determined to determine whether or not the hose 21' of the hose body 2' has contacted the body 3' based on whether the contact pressure exceeds a predetermined body contact pressure threshold.
The above contact pressure may be defined to be "positive (+)" or "negative (-)" depending on the orientation, or may be defined so that it is always "positive (+)" regardless of the orientation. may be defined. In the former case, in the comparison with the predetermined body contact pressure threshold, the absolute value of the contact pressure and the predetermined body contact pressure threshold shall be compared.
In this case, the processing unit 11 executes the process in the extending direction of the hose part 21 of the hose body model 2 from the machine body 3' at each predetermined time during the operation of the simulation model M (and by extension, during the operation of the machine body 3'). The contact pressure acting on each position at each predetermined interval along is calculated. Calculation of this contact pressure may be performed in the simulation step or in the determination step. In determining the body contact pressure in the determination step, the processing unit 11 calculates the contact pressure at each position of the hose part 21 of the hose body model 2 at each time during the operation of the simulation model M and the predetermined body contact pressure threshold. As a result, when it is determined that the contact pressure in at least a part of the hose part 21 of the hose body model 2 exceeds the predetermined body contact pressure threshold at any time during the operation of the simulation model M. , it is determined that the hose 21' of the hose body 2' has come into contact with the aircraft body 3' at any time during the operation of the aircraft body 3'; It is determined that the hose 21' of the hose body 2' did not come into contact with the aircraft body 3' at that time either.
The predetermined body contact pressure threshold may be set to zero or a value greater than zero.

Alternatively, in the aircraft contact determination, the processing unit 11 acts on the hose 21' of the hose body 2' from the aircraft 3' at any time during the operation of the aircraft 3', based on the result of the simulation process. The body contact force may be determined to determine whether or not the hose 21' of the hose body 2' has contacted the body 3' based on whether the contact force exceeds a predetermined body contact force threshold.
The contact force may be defined to be "positive (+)" or "negative (-)" depending on the direction, or it may be defined so that it is always "positive (+)" regardless of the direction. may be defined. In the former case, in the comparison with the predetermined body contact force threshold, the absolute value of the contact force and the predetermined body contact force threshold shall be compared.
In this case, the processing unit 11 executes the process in the extending direction of the hose part 21 of the hose body model 2 from the machine body 3' at each predetermined time during the operation of the simulation model M (and by extension, during the operation of the machine body 3'). The contact force acting on each position at each predetermined interval along is calculated. This calculation of the contact force may be performed in the simulation step or in the determination step. In determining the body contact force in the determination step, the processing unit 11 calculates the contact force at each position of the hose part 21 of the hose body model 2 at each time during the operation of the simulation model M and a predetermined body contact force threshold. As a result, when it is determined that the contact force on at least a part of the hose part 21 of the hose body model 2 exceeds the predetermined body contact force threshold at any time during the operation of the simulation model M. , it is determined that the hose 21' of the hose body 2' has come into contact with the aircraft body 3' at any time during the operation of the aircraft body 3'; It is determined that the hose 21' of the hose body 2' did not come into contact with the aircraft body 3' at that time either.
The predetermined body contact force threshold may be set to zero, or may be set to a value greater than zero.

Alternatively, in the aircraft contact determination, the processing unit 11 determines the relative relationship between the hose 21' of the hose body 2' and the aircraft 3' at any time during the operation of the aircraft 3', based on the result of the simulation process. Based on whether the distance has become 0, it may be determined whether the hose 21' of the hose body 2' has come into contact with the aircraft body 3', and the relative distance to the aircraft body may be determined.
In this case, the processing unit 11 selects a predetermined value along the extending direction of the hose portion 21 of the hose body model 2 at each predetermined time during the operation of the simulation model M (and by extension, during the operation of the aircraft body 3′). The relative distance between each position and the aircraft model 3 for each interval is calculated. This calculation of the relative distance may be performed in the simulation step or in the determination step. In determining the relative distance of the aircraft in the determination step, the processing unit 11 determines the relative distance between each position of the hose part 21 of the hose body model 2 and the aircraft model 3 at each time during the operation of the simulation model M. is 0, and as a result, at any time during the operation of the simulation model M, the relative distance between at least a part of the hose part 21 of the hose body model 2 and the fuselage model 3 is determined. , 0, it is determined that the hose 21' of the hose body 2' has come into contact with the aircraft body 3' at some time during the operation of the aircraft body 3'; on the other hand, in other cases, It is determined that the hose 21' of the hose body 2' did not come into contact with the machine body 3' at any time during the operation of the machine body 3'.

In the aircraft contact determination, the processing unit 11 may perform any plurality of determinations among the above-described aircraft contact energy determination, aircraft contact pressure determination, aircraft contact force determination, and aircraft relative distance determination. In that case, the processing unit 11 determines that there is an abnormality if it is determined in each of the plurality of determinations that the hose 21' of the hose body 2' has come into contact with the aircraft body 3', and other In this case, it may be determined that there is no abnormality. Alternatively, the processing unit 11 determines that there is an abnormality when determining that the hose 21' of the hose body 2' has contacted the aircraft body 3' in at least one of the plurality of determinations in the aircraft contact determination, In other cases, it may be determined that there is no abnormality.

<Fourth embodiment of hose/metal fitting matching method - When determining bending>
Next, a hose/metal fitting matching method according to a fourth embodiment of the present invention will be described in detail with reference to FIGS. 13 and 14. In the fourth embodiment, the processing unit 11 performs the bending judgment in the judgment step (and the judgment process) of the matching step S3 (and the matching process). The steps other than the determination step are the same as those in the first embodiment, so their explanation will be omitted. The machine 4' may be, for example, a construction machine (eg, a hydraulic excavator, a wheel loader, etc.) or a factory equipment (eg, an injection molding machine, a die-casting machine, etc.).
In the description of this embodiment, for the sake of convenience, illustration of the machine 4' to be simulated in the simulation step (as well as the simulation process) is omitted.

FIG. 13 shows an image of how the simulation model M operates in the simulation in the simulation step (and ultimately the simulation process) in this example. In this example, the simulation model M has only a hose body model 2 that imitates the hose body 2', and does not have a body model 3 that imitates a part of the body 3'. However, the simulation model M may include the aircraft model 3.

When the simulation model M includes the aircraft model 3, aircraft information is further input in input step S1.
In the example of FIG. 13, the hose body movable range information indicates that the second end 2b of the hose body model 2 is fixed without moving, and the first end 2a of the hose body model 2 is moved from the initial state SS to the rotation axis. 3c in the circumferential direction (clockwise in FIG. 13) by a predetermined angle to reach the maximum limit state SM and the final state SF. That is, in this example, the hose body model 2 only performs forward motion and does not perform backward motion. However, the hose body model 2 may also be configured to perform a backward movement.

In the judgment step (and thus the judgment process), the processing unit 11 performs the judgment process based on the result of the simulation step (and thus the simulation process). In this embodiment, the processing unit 11 performs bending determination in the determination process. In the bending determination, the processing unit 11 determines whether there is an abnormality based on whether or not the hose 21' of the hose body 2' is excessively bent. If the processing unit 11 determines that the hose 21' of the hose body 2' is excessively bent, it determines that there is an abnormality; on the other hand, if it determines that the hose 21' of the hose body 2' is not excessively bent, It is determined that there is no abnormality.
If the hose 21' of the hose body 2' is bent excessively, there is a risk that the hose 21' will be damaged. The bending determination makes it possible to avoid selecting a combination of the hose 21' and the fittings 221', 222' that would cause damage to the hose 21' during use of the machine 4'.

Here, in the bending determination, the processing unit 11 determines that the bending radius of at least a portion of the hose 21' of the hose body 2' is a predetermined value at any time during the operation of the body 3', based on the result of the simulation process. A bending radius determination may be made to determine whether or not the hose 21' of the hose body 2' is excessively bent based on whether the bending radius is below a threshold value.
Here, the "bending radius" of the hose 21' is the radius of curvature of the hose 21', and specifically refers to the inner side of the outer peripheral surface of the hose 21' bent with respect to the central axis of the hose 21' (center of curvature). It is preferable that the bending radius (curvature radius) is the bending radius (curvature radius) of the part of the hose 21' (side), but it may also be the bending radius (curvature radius) of the central axis of the hose 21', or the hose 21' It may be the bending radius (curvature radius) of a portion on the outside of the bend (on the opposite side from the center of curvature) with respect to the central axis of 21'. The same applies to the "bending radius" of the hose portion 21 of the hose body model 2. The predetermined bending radius threshold is preferably set to a minimum bending radius predefined by the manufacturer of the hose body 2', for example, but may be set to a different value.
For the above bending radius, the curvature when the center of curvature is on one side with respect to the hose 21' is defined as "positive (+)", and the curvature when the center of curvature is on the other side with respect to the hose 21' is defined as "negative (+)". -)" or may be defined to always be "positive (+)" regardless of the position of the center of curvature. In the former case, in the comparison with the predetermined bending radius threshold, the absolute value of the bending radius and the predetermined bending radius threshold are compared.
The bending radius determination will be explained with reference to FIG. 14. In the graph of FIG. 14, each black circle indicates the position at each predetermined interval along the extending direction of the hose portion 21 of the hose body model 2 in the initial state SS in the simulation using the simulation model M of the example of FIG. Indicates bending radius. In the graph of FIG. 14, each white circle indicates each position at a predetermined interval along the extending direction of the hose portion 21 of the hose body model 2 in the maximum limit state SM in the simulation using the simulation model M of the example of FIG. shows the bending radius at . In the graph of FIG. 14, the horizontal axis is the distance (m) from the second end 2b of the hose body model 2 to the position on the hose part 21, and the vertical axis is the bending radius (m) at the position. be. In this way, the processing unit 11 performs the following operations along the extending direction of the hose portion 21 of the hose body model 2 at each predetermined time during the operation of the simulation model M (and by extension, during the operation of the aircraft body 3'). The bending radius at each position at each predetermined interval is calculated. Calculation of this bending radius may be performed in the simulation step or in the determination step. In the bending radius judgment in the judgment step, the processing unit 11 calculates the bending radius at each position of the hose part 21 of the hose body model 2 at each time during the operation of the simulation model M and the predetermined bending radius threshold Tr( 14), and as a result, it was determined that the bending radius of at least a portion of the hose portion 21 of the hose body model 2 fell below the predetermined bending radius threshold Tr at any time during the operation of the simulation model M. In this case, it is determined that the hose parts 21 of the plurality of hose body models 2 (and the hoses 21' of the hose bodies 2') are bent excessively at some time during the operation of the aircraft 3', and on the other hand, In this case, it is determined that the hose portions 21 of the plurality of hose body models 2 (and by extension, the hoses 21' of the hose body 2') did not bend excessively at any time during the operation of the body 3'.

Alternatively, in the bending determination, the processing unit 11 determines, based on the results of the simulation process, that the curvature of at least a portion of the hose 21' of the hose body 2' reaches a predetermined curvature threshold at any time during the operation of the aircraft body 3'. A curvature determination may be made to determine whether or not the hose 21' of the hose body 2' is excessively bent based on whether or not the curve exceeds the curve.
Here, the "curvature" of the hose 21' is preferably the curvature of the portion of the outer circumferential surface of the hose 21' that is bent inside (the center of curvature side) with respect to the central axis of the hose 21'. It may be the curvature of the central axis of the hose 21', or it may be the curvature of a portion of the outer circumferential surface of the hose 21' on the outside of the bend (on the opposite side from the center of curvature) with respect to the central axis of the hose 21'. Good too. The same applies to the “curvature” of the hose portion 21 of the hose body model 2. The predetermined curvature threshold value is preferably set to a curvature calculated from a minimum bending radius predefined by the manufacturer of the hose body 2', for example, but may be set to a different value.
The above curvature is defined as "positive (+)" when the center of curvature is on one side with respect to the hose 21', and as "negative (-)" when the center of curvature is on the other side with respect to the hose 21'. )" or may be defined to always be "positive (+)" regardless of the position of the center of curvature. In the former case, in the comparison with the predetermined curvature threshold, the absolute value of the curvature and the predetermined curvature threshold are compared.
In this case, the processing unit 11 selects a predetermined value along the extending direction of the hose portion 21 of the hose body model 2 at each predetermined time during the operation of the simulation model M (and by extension, during the operation of the aircraft body 3'). The curvature at each position for each interval is calculated. This calculation of the curvature may be performed in the simulation step or in the determination step. In the curvature determination in the determination step, the processing unit 11 compares the curvature at each position of the hose portion 21 of the hose body model 2 at each time during the operation of the simulation model M with a predetermined curvature threshold, As a result, if it is determined that the curvature of at least a portion of the hose portion 21 of the hose body model 2 exceeds the predetermined curvature threshold at any time during the operation of the simulation model M, at any time during the operation of the aircraft body 3'. At that time, it was determined that the hose parts 21 of the plurality of hose body models 2 (and in turn, the hoses 21' of the hose bodies 2') were bent excessively, and on the other hand, at any time during the operation of the aircraft body 3'. It is determined that the hose portions 21 of the plurality of hose body models 2 (and in turn, the hoses 21' of the hose bodies 2') were not bent excessively at the time of .

In the bending determination, the processing unit 11 may perform both the above-mentioned bending radius determination and curvature determination. In that case, in the bending determination, if the hose 21' of the hose body 2' is determined to be excessively bent in both of the determinations, the processing unit 11 determines that there is an abnormality, and in other cases, it determines that there is no abnormality. You can judge. Alternatively, in the bending determination, if it is determined that the hose 21' of the hose body 2' is excessively bent in at least one of the two determinations, the processing unit 11 determines that there is an abnormality, and in other cases, It may be determined that there is no abnormality.

<Fifth embodiment of hose/metal fitting matching method - case of reversal judgment>
Next, a hose/metal fitting matching method according to a fifth embodiment of the present invention will be described in detail with reference to FIGS. 15 and 16. In the fifth embodiment, the processing unit 11 performs a reversal judgment in the judgment step (and thus the judgment process) of the matching step S3 (and the matching process). The steps other than the determination step are the same as those in the first embodiment, so their explanation will be omitted. The machine 4' may be, for example, a construction machine (eg, a hydraulic excavator, a wheel loader, etc.) or a factory equipment (eg, an injection molding machine, a die-casting machine, etc.).
In the description of this embodiment, for the sake of convenience, illustration of the machine 4' to be simulated in the simulation step (as well as the simulation process) is omitted.

15 and 16 show how the simulation model M operates in the simulation in the simulation step (and thus the simulation process) in this example. In this example, the simulation model M includes a hose body model 2 that imitates the hose body 2', and a body model 3 that imitates a part of the body 3'. The aircraft model 3 has a cylindrical shape. However, the simulation model M does not need to include the aircraft model 3.

When the simulation model M includes the aircraft model 3, aircraft information is further input in input step S1.
In the examples shown in FIGS. 15 and 16, the hose body movable range information indicates that the second end 2b of the hose body model 2 is fixed without moving, and that the first end 2a of the hose body model 2 is in the initial state SS ( 15), it rotates by a predetermined angle to one side in the circumferential direction (counterclockwise in FIGS. 15 to 16) around the rotation axis 3c, reaches the maximum limit state SM (FIGS. 15 to 16), and then 3c in the other circumferential direction (clockwise in FIGS. 15 and 16) by a predetermined angle to reach the final state SF, which is the same as the initial state SS.

In the judgment step (and thus the judgment process), the processing unit 11 performs the judgment process based on the result of the simulation step (and thus the simulation process). In this embodiment, the processing unit 11 performs a reversal determination in the determination process. In the reversal determination, the processing unit 11 determines whether there is an abnormality based on whether or not the hose 21' of the hose body 2' has been reversed. Here, "inversion" of the hose 21' of the hose body 2' refers to a phenomenon in which the position of the center of curvature of the hose 21' changes from one side to the other side with respect to the hose 21' in at least a portion of the hose 21'. Point. The same applies to the "inversion" of the hose portion 21 of the hose body model 2. For example, in the example of FIG. 16, during the return movement of the hose body model 2, the center of curvature 21c of the same part of the hose part 21 of the hose body model 2 changes from the lower side of the drawing with respect to the hose part 21 to the hose part 21. Towards the top of the drawing there is a transition and thus an inversion. If the processing unit 11 determines that the hose 21' of the hose body 2' has reversed, it determines that there is an abnormality, and on the other hand, if it determines that the hose 21' of the hose body 2' has not reversed, it determines that there is no abnormality. I judge that.
If the hose 21' of the hose body 2' is reversed, there is a risk that the hose 21' will be damaged. According to the reversal judgment, it is possible to avoid selecting a combination of the hose 21' and the fittings 221' and 222' that would cause damage to the hose 21' during use of the machine 4'.

Here, in the reversal determination, the processing unit 11 determines, based on the result of the simulation process, that at least a portion of the hose 21' of the hose body 2' has a The curvature change rate may be determined to determine whether the hose 21' of the hose body 2' has been inverted based on whether the curvature change rate exceeds a predetermined curvature change rate threshold. Here, the "curvature" of the hose 21' of the hose body 2' is basically as explained in the bending judgment above, but in the reversal judgment, when the center of curvature is on one side with respect to the hose 21', It is preferable to define the curvature as "positive (+)" and define the curvature when the center of curvature is on the other side with respect to the hose 21' as "negative (-)" because this allows more accurate reversal judgment. . However, "curvature" may always be defined as "positive (+)" regardless of the position of the center of curvature. The same applies to the “curvature” of the hose portion 21 of the hose body model 2.
In this case, the processing unit 11 selects a predetermined value along the extending direction of the hose portion 21 of the hose body model 2 at each predetermined time during the operation of the simulation model M (and by extension, during the operation of the aircraft body 3′). The rate of change in curvature per unit time at each position for each interval is calculated. This calculation of the rate of change in curvature per unit time may be performed in the simulation step or in the determination step. In determining the curvature change rate in the determination step, the processing unit 11 determines the curvature change rate per unit time of the hose portion 21 of the hose body model 2 at each position at each time during the operation of the simulation model M. and a predetermined curvature change rate threshold value, and as a result, at any time during the operation of the simulation model M, the change rate of curvature per unit time in at least a portion of the hose portion 21 of the hose body model 2 is equal to or less than the predetermined curvature change rate threshold. When it is determined that the curvature change rate threshold has been exceeded, it is determined that the hose portion 21 of the hose body model 2 (and by extension, the hose 21' of the hose body 2') has been reversed at some time during the operation of the aircraft body 3'. On the other hand, in other cases, it is determined that the hose portion 21 of the hose body model 2 (and by extension, the hose 21' of the hose body 2') was not reversed at any time during the operation of the body 3'.

Alternatively, in the reversal determination, the processing unit 11 determines the bending rate per unit time in at least a portion of the hose 21' of the hose body 2' at any time during the operation of the aircraft body 3', based on the result of the simulation process. The bending radius change rate may be determined to determine whether the hose 21' of the hose body 2' has been inverted, based on whether or not the radius change rate exceeds a predetermined bending radius change rate threshold. Here, the "bending radius" of the hose 21' of the hose body 2' is basically as explained in the bending judgment above, but in the reversal judgment, the center of curvature is on one side with respect to the hose 21'. If the bending radius is defined as "positive (+)" when the center of curvature is on the other side of the hose 21', and the bending radius is defined as "negative (-)" when the center of curvature is on the other side with respect to the hose 21', reversal judgment can be made more accurately. suitable. However, the "bending radius" may always be defined as "positive (+)" regardless of the position of the center of curvature. The same applies to the "bending radius" of the hose portion 21 of the hose body model 2.
In this case, the processing unit 11 selects a predetermined value along the extending direction of the hose portion 21 of the hose body model 2 at each predetermined time during the operation of the simulation model M (and by extension, during the operation of the aircraft body 3′). The rate of change of the bending radius per unit time at each position for each interval is calculated. This calculation of the rate of change in the bending radius per unit time may be performed in the simulation step or in the determination step. In determining the bending radius change rate in the determination step, the processing unit 11 determines the bending radius per unit time of the hose portion 21 of the hose body model 2 at each position at each time during the operation of the simulation model M. The rate of change is compared with a predetermined bending radius change rate threshold, and as a result, the bending radius changes per unit time in at least a portion of the hose portion 21 of the hose body model 2 at any time during the operation of the simulation model M. When it is determined that the bending radius change rate exceeds the predetermined bending radius change rate threshold, at some time during the operation of the machine body 3', the hose portion 21 of the hose body model 2 (and by extension, the hose 21' of the hose body 2') However, in other cases, the hose part 21 of the hose body model 2 (and the hose 21' of the hose body 2') is not reversed at any time during the operation of the machine body 3'. I judge that.

Alternatively, in the reversal determination, the processing unit 11 determines the tension per unit time in at least a portion of the hose 21' of the hose body 2' at any time during the operation of the aircraft body 3', based on the result of the simulation process. A tensile force change rate determination may be made to determine whether or not the hose 21' of the hose body 2' has been reversed, based on whether the force change rate exceeds a predetermined tensile force change rate threshold. Here, the "tensile force" of the hose 21' of the hose body 2' is defined as "positive (+)" when the center of curvature is on one side with respect to the hose 21' in reversal judgment, and It is preferable to define the tensile force when the center is on the other side with respect to the hose 21' as "negative (-)" because it allows more accurate reversal judgment. However, "tensile force" may always be defined as "positive (+)" regardless of the position of the center of curvature. The same applies to the "tensile force" of the hose portion 21 of the hose body model 2.
In this case, the processing unit 11 selects a predetermined value along the extending direction of the hose portion 21 of the hose body model 2 at each predetermined time during the operation of the simulation model M (and by extension, during the operation of the aircraft body 3'). The rate of change in tensile force per unit time at each position for each interval is calculated. This calculation of the rate of change in tensile force per unit time may be performed in the simulation step or in the determination step. In the determination of the rate of change in tensile force in the determination step, the processing unit 11 calculates the tensile force per unit time at each position of the hose portion 21 of the hose body model 2 at each time during the operation of the simulation model M. The rate of change is compared with a predetermined tensile force change rate threshold, and as a result, the change in the tensile force per unit time in at least a portion of the hose portion 21 of the hose body model 2 is determined at any time during the operation of the simulation model M. When it is determined that the tension rate exceeds the predetermined tensile force change rate threshold, at some time during the operation of the machine body 3', the hose part 21 of the hose body model 2 (and by extension, the hose 21' of the hose body 2') However, in other cases, the hose part 21 of the hose body model 2 (and the hose 21' of the hose body 2') is not reversed at any time during the operation of the machine body 3'. I judge that.

Alternatively, in the reversal determination, the processing unit 11 determines the compression rate per unit time in at least a portion of the hose 21' of the hose body 2' at any time during the operation of the aircraft body 3', based on the result of the simulation process. The compressive force change rate may be determined to determine whether the hose 21' of the hose body 2' has been reversed based on whether the force change rate exceeds a predetermined compressive force change rate threshold. Here, the "compressive force" of the hose 21' of the hose body 2' is defined as a "positive (+)" compressive force when the center of curvature is on one side with respect to the hose 21' in the reversal judgment. It is preferable to define the compression force when the center is on the other side with respect to the hose 21' as "negative (-)" because it allows more accurate reversal judgment. However, the "compressive force" may always be defined as "positive (+)" regardless of the position of the center of curvature. The same applies to the "compressive force" of the hose portion 21 of the hose body model 2.
In this case, the processing unit 11 selects a predetermined value along the extending direction of the hose portion 21 of the hose body model 2 at each predetermined time during the operation of the simulation model M (and by extension, during the operation of the aircraft body 3'). The rate of change in compressive force per unit time at each position for each interval is calculated. This calculation of the rate of change in compressive force per unit time may be performed in the simulation step or in the determination step. Then, in determining the compression force change rate in the determination step, the processing unit 11 determines the compression force per unit time at each position of the hose portion 21 of the hose body model 2 at each time during the operation of the simulation model M. The rate of change is compared with a predetermined compressive force change rate threshold, and as a result, the change in compressive force per unit time in at least a portion of the hose portion 21 of the hose body model 2 is determined at any time during the operation of the simulation model M. If it is determined that the compressive force rate exceeds the predetermined compression force change rate threshold, at some time during the operation of the machine body 3', the hose portion 21 of the hose body model 2 (and by extension, the hose 21' of the hose body 2') However, in other cases, the hose part 21 of the hose body model 2 (and the hose 21' of the hose body 2') is not reversed at any time during the operation of the machine body 3'. I judge that.

In the reversal determination, the processing unit 11 may perform any number of determinations among the above-mentioned curvature change rate determination, bending radius change rate determination, tensile force change rate determination, and compressive force change rate determination. In that case, in the reversal determination, if it is determined that the hose 21' of the hose body 2' is reversed in each of the plurality of determinations, the processing unit 11 determines that there is an abnormality, and in other cases, there is no abnormality. You may judge that. Alternatively, in the reversal determination, if it is determined that the hose 21' of the hose body 2' is reversed in any one of the plurality of determinations, the processing unit 11 determines that there is an abnormality; , it may be determined that there is no abnormality.

<Sixth embodiment of hose/metal fitting matching method - When determining mouth area>
Next, a hose/metal fitting matching method according to a sixth embodiment of the present invention will be described in detail with reference to FIGS. 17 and 18. In the sixth embodiment, the processing unit 11 performs mouth judgment in the judgment step (and thus the judgment process) of the matching step S3 (and the matching process). The machine 4' may be, for example, a construction machine (eg, a hydraulic excavator, a wheel loader, etc.) or a factory equipment (eg, an injection molding machine, a die-casting machine, etc.).
In the description of this embodiment, for the sake of convenience, illustration of the machine 4' to be simulated in the simulation step (as well as the simulation process) is omitted.

FIG. 17 shows an image of how the simulation model M operates in the simulation in the simulation step (and thus the simulation process) in this example. In this example, the simulation model M has only a hose body model 2 that imitates the hose body 2', and does not have a body model 3 that imitates a part of the body 3'. However, the simulation model M may include the aircraft model 3.

When the simulation model M includes the aircraft model 3, aircraft information is further input in input step S1.
In the example of FIG. 17, the hose body movable range information indicates that the second end 2b of the hose body model 2 is fixed without moving, and the first end 2a of the hose body model 2 is moved from the initial state SS to the rotation axis. 3c to one side in the circumferential direction (clockwise in FIG. 17) to reach the maximum limit state SM, and then rotate to the other side in the circumferential direction (counterclockwise in FIG. 17) around the rotation axis 3c by a predetermined angle. It is specified that the final state SF is the same as the initial state SS by rotating by an angle.

In the judgment step (and thus the judgment process), the processing unit 11 performs the judgment process based on the result of the simulation step (and thus the simulation process). In this embodiment, the processing unit 11 performs mouth judgment in the judgment process. In the mouth determination, the processing unit 11 determines whether there is an abnormality based on whether or not the mouth part 21k' (FIG. 2) of the hose 21' of the hose body 2' has been excessively deformed. Here, the "mouth portion 21k'" (Fig. 2) of the hose 21' of the hose body 2' is approximately 100 mm from the end 22d' of the hose 21' on the hose 21' side of the metal fittings 221' and 222'. refers to the part. The same applies to the mouth portion 21k (FIG. 17) of the hose portion 21 of the hose body model 2. The processing unit 11 may perform the mouth judgment on only one of the pair of mouth parts 21k' of the hose 21', or may perform the mouth judgment on both of the pair of mouth parts 21k' of the hose 21'. You may go. In the example of FIG. 17, the processing unit 11 selects the mouth part 21k' of the pair of mouth parts 21k' of the hose part 21' that is adjacent to the second metal fitting 222' (in turn, the pair of mouth parts 21k' of the hose 21 of the hose body model 2). Among the mouth parts 21k, the mouth part 21k adjacent to the second metal fitting part 222 is subjected to the mouth judgment. If the processing unit 11 determines that the mouth part 21k' of the hose 21' of the hose body 2' is excessively deformed, it determines that there is an abnormality. If it is determined that there was no excessive deformation, it is determined that there is no abnormality.
If the mouth portion 21k' of the hose 21' of the hose body 2' is excessively deformed, there is a risk that the mouth portion 21k' of the hose 21' may be damaged. According to the mouth judgment, it is possible to avoid selecting a combination of the hose 21' and the fittings 221' and 222' that would cause damage to the mouth part 21k' of the hose 21' during use of the machine 4'. becomes.

Here, in the mouth determination, the processing unit 11 determines whether the mouth part 21k' is attached to the metal fittings 221', 222' (in this example Then, based on whether or not the second metal fitting 222' has moved from one side to the other side with respect to the extension line 22c' (not shown) of the central axis line, the opening of the hose 21' of the hose body 2' is determined. A double-sided judgment may be made to judge whether or not 21k' has been excessively deformed.
In this case, in the double swing determination in the determination step, the processing unit 11 determines that during the operation of the simulation model M, the mouth part 21k of the hose 21 of the hose body model 2 is connected to the metal parts 221, 222 ( In this example, it is determined whether the second metal part 222) has moved from one side to the other side with respect to the extension line 22c of the central axis line, and as a result, when the simulation model M is in operation, the mouth of the hose body model 2 The hose body 2 ' mouth part 21k' moves from one side to the other side with respect to the extension line 22c' of the central axis of the metal fittings 221', 222' (second metal fitting 222' in this example) adjacent to the mouth part 21k'. ), it is determined that the mouth part 21k of the hose part 21 of the hose body model 2 (and in turn, the mouth part 21k' of the hose 21' of the hose body 2') has been excessively deformed. In this case, it is determined that the mouth portion 21k of the hose portion 21 of the hose body model 2 (and thus the mouth portion 21k′ of the hose 21′ of the hose body 2′) has not been excessively deformed.

Alternatively, in the mouth determination, the processing unit 11 determines whether the bending radius of the mouth part 21k' has fallen below a predetermined mouth part bending radius threshold at any time during the operation of the aircraft body 3', based on the result of the simulation process. Based on whether or not the mouth portion 21k' of the hose 21' of the hose body 2' has been excessively deformed, the bending radius of the mouth portion may be determined. The predetermined mouth bending radius threshold is preferably set to a minimum bending radius predefined by the manufacturer of the hose body 2', for example, but may be set to a different value.
For the above bending radius, the curvature when the center of curvature is on one side with respect to the hose 21' is defined as "positive (+)", and the curvature when the center of curvature is on the other side with respect to the hose 21' is defined as "negative (+)". -)" or may be defined to always be "positive (+)" regardless of the position of the center of curvature. In the former case, in the comparison with the predetermined mouth bending radius threshold, the absolute value of the bending radius is compared with the predetermined mouth bending radius threshold.
In this case, the processing unit 11 determines the extending direction of the mouth part 21k of the hose part 21 of the hose body model 2 at each predetermined time during the operation of the simulation model M (and by extension, during the operation of the aircraft body 3'). The bending radius at each position at each predetermined interval along is calculated. Calculation of this bending radius may be performed in the simulation step or in the determination step. In determining the bending radius of the mouth portion in the determination step, the processing unit 11 determines the bending radius of the mouth portion 21k of the hose portion 21 of the hose body model 2 at each position at each time during the operation of the simulation model M. As a result, at any time during the operation of the simulation model M, the bending radius of at least a portion of the mouth portion 21k of the hose portion 21 of the hose body model 2 is equal to or equal to the predetermined mouth portion bending radius threshold. When it is determined that the bending radius is below the bending radius threshold, at any time during the operation of the machine body 3', the mouth portion 21k of the hose portion 21 of the hose body model 2 (and the mouth portion 21k of the hose 21’ of the hose body 2′) ') has been excessively deformed, and on the other hand, in other cases, at any time during the operation of the machine body 3', the mouth part 21k of the hose part 21 of the hose body model 2 (and the hose body 2' It is determined that the mouth portion 21k' of the hose 21' was not excessively deformed.

Alternatively, in the mouth determination, the processing unit 11 determines whether the curvature of the mouth portion 21k' exceeds a predetermined mouth portion curvature threshold at any time during the operation of the aircraft body 3', based on the result of the simulation process. Based on this, the curvature of the mouth portion may be determined to determine whether or not the mouth portion 21k' of the hose 21' of the hose body 2' has been excessively deformed. The predetermined mouth curvature threshold is preferably set to a curvature calculated from a minimum bending radius predefined by the manufacturer of the hose body 2', but may be set to a different value.
The above curvature is defined as "positive (+)" when the center of curvature is on one side with respect to the hose 21', and as "negative (-)" when the center of curvature is on the other side with respect to the hose 21'. )" or may be defined to always be "positive (+)" regardless of the position of the center of curvature. In the former case, in the comparison with the predetermined mouth curvature threshold, the absolute value of the curvature and the predetermined mouth curvature threshold are compared.
In this case, the processing unit 11 determines the extending direction of the mouth part 21k of the hose part 21 of the hose body model 2 at each predetermined time during the operation of the simulation model M (and by extension, during the operation of the aircraft body 3'). The curvature at each position at each predetermined interval along is calculated. This calculation of the curvature may be performed in the simulation step or in the determination step. Then, in determining the mouth portion curvature in the determination step, the processing unit 11 calculates the curvature at each position of the mouth portion 21k of the hose portion 21 of the hose body model 2 at each time during the operation of the simulation model M, and the predetermined mouth portion. As a result, at any time during the operation of the simulation model M, the curvature of at least a portion of the mouth portion 21k of the hose portion 21 of the hose body model 2 exceeds a predetermined mouth portion curvature threshold. If it is determined that the mouth part 21k of the hose part 21 of the hose body model 2 (and the mouth part 21k' of the hose 21' of the hose body 2') is excessively On the other hand, in other cases, at any time during the operation of the machine body 3', the mouth part 21k of the hose part 21 of the hose body model 2 (and in turn, the mouth part 21k of the hose part 21 of the hose body 2') It is determined that the mouth part 21k') was not excessively deformed.

In the mouth determination, the processing unit 11 may perform any number of determinations among the above-mentioned bidirectional swing determination, mouth bending radius determination, and mouth portion curvature determination. In this case, the processing unit 11 determines that there is an abnormality if it is determined in each of the plurality of determinations that the mouth portion 21k' of the hose 21' of the hose body 2' has been excessively deformed. In other cases, it may be determined that there is no abnormality. Alternatively, the processing unit 11 determines that there is an abnormality when determining that the mouth portion 21k' of the hose 21' of the hose body 2' has been excessively deformed in any one of the plurality of determinations in the mouth determination. However, in other cases, it may be determined that there is no abnormality.

Note that FIG. 18 shows an image of the simulation model M to which input information different from the input information input to the simulation model M in the example of FIG. 17 has been input. The simulation model M in the example of FIG. 18 differs from the simulation model M in the example of FIG. Only the length of the hose portion 21 set by , and the shape of the first metal fitting portion 221 set by the metal fitting shape information of the metal fitting information are different. In the example of FIG. 18, during the operation of the simulation model M, the mouth part 21k of the hose 21 of the hose body model 2 is aligned with the center axis of the metal fittings 221 and 222 (second metal fitting 222 in this example) adjacent to the mouth part 21k. Since it remains on one side of the extension line 22c (the left side in FIG. 18) and has not moved to the other side (the right side in FIG. 18) with respect to the extension line 22c, it corresponds to the simulation model M in the example of FIG. It can be seen that the combination of the hose 21' and the fittings 221' and 222' is appropriate.

In each of the above-described embodiments, for convenience of explanation, explanations have been made using separate simulation models M, but in the judgment step (and in turn, judgment processing), the processing unit 11 uses simulation results using the same simulation model M. Based on the above, any multiple judgments among (a) twist judgment, (b) hose contact judgment, (c) body contact judgment, (d) bend judgment, (e) reversal judgment, and (f) lip judgment are made. You may do so. In that case, in the determination step (and furthermore, the determination process), if at least one of the plurality of determinations determines that there is an abnormality, the processing unit 11 ultimately determines that there is an abnormality, and in other cases, , it is finally determined that there is no abnormality.
Particularly, in the judgment step (and thus the judgment process), the processing unit 11 performs one of (a) twist judgment, (b) hose contact judgment, (c) body contact judgment, (d) bend judgment, and (e) reversal judgment. It is preferable to perform at least one and (f) mouth judgment together.
The simulation model M is not limited to the configuration described in each of the above embodiments, and may have any configuration.

In the first embodiment and the third to sixth embodiments described above, the simulation model M has only one hose body model 2 for convenience of explanation, but also in these embodiments, Similar to the second embodiment, the simulation model M may include a plurality of hose body models 2. In that case, the processing unit 11 preferably performs a simulation step (as a result, a simulation process) and a judgment step (as a result, a judgment process) for each hose body model 2.

[Other embodiments of the hose/fittings matching system, seventh embodiment of the hose/fittings matching method]
FIG. 19 shows a hose/metal fitting matching system 1 according to another embodiment of the present invention. The hose/metal fitting matching system 1 of this embodiment differs from the embodiment of FIG. 1 only in that the storage unit 12 further includes a preferred combination database CDB.
As shown in FIG. 20, the preferred combination database CDB includes information on the initial position of the hose body, information on the movable range of the hose body, information on the initial position of the hose body, and information on the movable range of the hose body that are most suitable for installation on the aircraft. A combination of hose identification information and metal fitting identification information is stored in association with each other.

Here, a hose/metal fitting matching method according to a seventh embodiment of the present invention will be described. The hose/metal fitting matching method according to the present embodiment differs from the hose/metal fitting matching method according to each embodiment described above only in the content of matching step S3 (matching process).
In the present embodiment, in the matching step S3 (matching process), the processing unit 11 inputs the hose identification information and the metal fitting identification information extracted in the extraction step S2 (extraction process) using the input unit 13 in the input step S1. The combination of hose identification information and metal fitting identification information that is associated with the hose body initial position information and hose body movable range information in the preferred combination database CDB is determined to be the most suitable hose 21' for attachment to the aircraft body 3'. and the combination of hose identification information and metal fitting identification information corresponding to the combination of metal fittings 221' and 222'. That is, in the present embodiment, the processing unit 11 does not perform a simulation step or a determination step in the matching step S3.
Also in this embodiment, it is possible to select a combination of the hose 21' and the fittings 221' and 222' suitable for attachment to the body 3'.

Note that it is preferable that the preferred combination database CDB is constructed in advance by performing the above-mentioned simulation step (simulation process) and judgment step (determination process) before the input step S1. More specifically, in this case, the processing unit 11 constructs the preferred combination database CDB by performing the following simulation step, determination step, and preferred combination storage step before the input step S1.
In the simulation step, the processing unit 11 extracts hose body initial position information, hose body movable range information, hose rigidity information and hose dimension information associated with any one hose identification information in the hose specification database HDB, and metal fittings. The simulation model M (by extension, at least the hose body model 2) is created based on input information including fitting shape information and fitting dimension information that are associated with any one or two pieces of fitting identification information in the specification database TDB. A simulation process is performed in which the behavior of the hose body 2' is continuously simulated while the body 3' is in operation. Here, the hose body initial position information and the hose body movable range information are input through the input unit 13. Further, it is preferable that the one hose identification information and the one or two metal fitting identification information are input (designated) through the input unit 13.
In the determination step, the processing unit 11 performs (a) twist determination, (b) hose contact determination, (c) body contact determination, (d) bending determination, and (e) based on the results of the simulation step (simulation processing). Judgment processing is performed to perform at least one of reversal judgment and (f) mouth judgment. The determination step is the same as described in the first to sixth embodiments.
If it is determined that there is no abnormality in the determination process, the processing unit 11 stores the hose body initial position information used in the simulation step (simulation process) and the hose body movable range used in the simulation step (simulation process) in a suitable combination storage step. A preferred combination storage process in which information and a combination of hose identification information and metal fitting identification information corresponding to the hose 21' and metal fittings 221' and 222' targeted for simulation processing are associated and stored in a preferable combination database CDB. I do. As a result, in the preferred combination database CDB, hose identification information and hoses most suitable for attachment to the aircraft in relation to the initial hose position information, the hose body movable range information, and the hose body initial position information and the hose body movable range information are determined. Combinations of metal fitting identification information are stored in association with each other.

In the seventh embodiment, in the matching step S3 (matching process), the processing unit 11 includes hoses registered in the preferred combination database CDB in the hose identification information and metal fitting identification information extracted in the extraction step S2 (extraction process). It may be determined whether a combination of identification information and metal fitting identification information exists. In that case, if it is determined that a combination of hose identification information and metal fitting identification information registered in the preferred combination database CDB exists in the hose identification information and metal fitting identification information extracted in extraction step S2 (extraction process), the process The section 11 selects the hose corresponding to the combination of the hose 21' and the metal fittings 221' and 222' that is most suitable for attachment to the aircraft body 3', based on the combination of the hose identification information and metal fitting identification information registered in the preferred combination database CDB. Select as a combination of identification information and metal fitting identification information. On the other hand, if it is determined that there is no combination of hose identification information and metal fitting identification information registered in the preferred combination database CDB among the hose identification information and metal fitting identification information extracted in extraction step S2 (extraction process), Similar to the first to sixth embodiments, a simulation step, a judgment step, and a selection step are performed.

In each of the embodiments described above, the processing unit 11 may perform a correction step (eventually, correction processing) in a simulation step (eventually, simulation processing). In the correction step, the processing unit 11 uses the hose specification database for the one hose identification information selected in the simulation step, based on the working pressure information associated with the hose specification database HDB for the one hose identification information selected in the simulation step. A correction process is performed to correct the hose rigidity information and hose dimension information associated with the HDB. After the correction step (and eventually the correction process), the processing unit 11 performs the above simulation using the input information including the hose rigidity information and the hose dimension information corrected in the correction process.
Generally, the rigidity (especially bending rigidity) of the hose 21' increases as the working pressure increases. Further, the length of the hose 21' varies depending on the structure and material of the hose and the operating pressure. Moreover, the outer diameter of the hose 21' increases as the operating pressure increases. According to the correction process, it is possible to perform a simulation while taking into account changes in the rigidity and dimensions of the hose 21' depending on the working pressure, so a more accurate simulation can be performed, and as a result, the impact on the fuselage 3' can be reduced. It is possible to select a combination of hose 21' and metal fittings 221', 222' that is more suitable for attachment.
In addition, in the correction step (and thus the correction process), it is preferable that the processing unit 11 corrects the hose stiffness information such that the higher the working pressure, the higher the stiffness specified by the hose stiffness information. In addition, in the correction step (and thus correction processing), the processing unit 11 uses the hose length information so that the higher the working pressure, the shorter the length of the hose 21' specified by the hose length information of the hose dimension information. It is preferable to correct. In addition, in the correction step (and thus correction processing), the processing unit 11 uses the hose outer diameter information such that the higher the working pressure, the larger the outer diameter of the hose 21' specified by the hose outer diameter information of the hose dimension information. It is preferable to correct.

The hose/fitting matching system and the hose/fitting matching method of the present invention can be applied to fluid pressure, for example, construction machinery (for example, hydraulic excavators, wheel loaders, etc.) and factory equipment (for example, injection molding machines, die-casting machines, etc.). In machines powered by hydraulic power (for example, hydraulic pressure), it is suitable for use in selecting a combination of hoses and fittings suitable for attachment to the fuselage.

1 Hose/metal fitting matching system 11 Processing section 12 Storage section 13 Input section 14 Output section 141 Display section P Program PS Simulation program PM Matching program 2' Hose body 2a' First end (end)
2b' Second end (end)
21' Hose 21k' Mouth part 221' First metal fitting (metal fitting)
222' Second metal fitting (metal fitting)
22d' Hose side end of metal fitting 2 Hose body model 2a First end (end)
2b Second end (end)
21 Hose part 21c Center of curvature 21k Mouth part 221 First metal fitting part (metal fitting part)
222 Second metal fitting part (metal fitting part)
22c Extension of central axis 22d Hose side end of metal fitting 3' Body 32' Rotating part 3c' Rotating axis 3 Aircraft model 32 Rotating part 3c Rotating axis 4' Machine SS Initial state SM Mobility limit state SF Final state M Simulation model HDB Hose specification database TDB Metal fitting specification database CDB Preferred combination database

Claims (6)

A hose/metal fitting matching system that matches the hose and the metal fittings in a hose body that includes a hose and a pair of metal fittings connected to both ends of the hose,
The hose body is configured to be attached to a machine body,
The hose/fittings matching system is
an input section;
storage section and
a processing section;
Equipped with
The storage unit includes:
For each of the plurality of hoses, hose identification information, operating pressure information, diameter information, hose rigidity information, and hose dimension information regarding dimensions of the hose other than the diameter information are stored in association with each other; hose specification database,
For each of the plurality of metal fittings, metal fitting identification information, operating pressure information, diameter information, metal fitting shape information, and metal fitting dimensional information regarding dimensions of the metal fitting other than the aperture information are stored in association with each other; Metal fittings specification database,
It has
The processing unit includes:
an extraction process of respectively extracting the hose identification information and the metal fitting identification information, which are associated with the working pressure information and bore diameter information input in the input section, from the hose specification database and the metal fitting specification database;
Based on hose body initial position information regarding the initial position of both ends of the hose body inputted in the input unit, and hose body movable range information regarding the movable range of both ends of the hose body during operation of the aircraft body. Then, from among the hose identification information and the metal fitting identification information extracted in the extraction process, the hose identification information and the metal fitting identification information corresponding to the combination of the hose and the metal fitting most suitable for attachment to the aircraft body. a matching process of performing the matching by selecting a combination of;
and
In the matching process, the processing unit includes:
The hose specification database is configured for any one of the hose identification information among the hose body initial position information and the hose body movable range information inputted by the input unit and the hose identification information extracted in the extraction process. The hose rigidity information and the hose dimension information associated with each other in the metal fitting specification database are associated with any one or two of the metal fitting identification information extracted in the extraction process. Based on the input information including the metal fitting shape information and the metal fitting size information that have been obtained, the behavior of the hose body during operation of the aircraft is continuously controlled using a hose body model that imitates the hose body. Simulating, simulation processing,
Based on the results of the simulation process, (a) determining the presence or absence of an abnormality based on whether or not a predetermined portion of the hose body of the hose body is excessively twisted; (c) determining the presence or absence of an abnormality based on whether the hoses of the hose body have contacted each other; (c) determining the presence or absence of an abnormality based on whether the hoses of the hose body have contacted each other; Aircraft contact determination; (d) determining the presence or absence of an abnormality based on whether the hose of the hose body is excessively bent; bending determination; (e) determining whether or not the hose of the hose body is reversed; at least one of the following: (f) a reversal determination in which the presence or absence of an abnormality is determined based on whether or not the mouth of the hose of the hose body has been excessively deformed; judgment processing,
If it is determined that there is no abnormality in the determination process, the combination of the hose identification information and the metal fitting identification information corresponding to the hose and the metal fitting targeted for the simulation process is set to the hose most suitable for attachment to the aircraft body. and a selection process of selecting a combination of the hose identification information and the metal fitting identification information corresponding to the combination of the metal fittings;
A hose/fittings matching system that performs A hose/metal fitting matching system that matches the hose and the metal fittings in a hose body, the system having a hose and a pair of metal fittings connected to both ends of the hose,
The hose body is configured to be attached to a machine body,
The hose/fittings matching system is
an input section;
storage section,
a processing section;
Equipped with
The storage unit is
For each of the plurality of hoses, hose identification information, operating pressure information, diameter information, hose rigidity information, and hose dimension information regarding dimensions of the hose other than the diameter information are stored in association with each other; hose specification database,
For each of the plurality of metal fittings, metal fitting identification information, operating pressure information, diameter information, metal fitting shape information, and metal fitting dimensional information regarding dimensions of the metal fitting other than the aperture information are stored in association with each other; Metal fittings specification database,
It has
The processing unit includes:
an extraction process of respectively extracting the hose identification information and the metal fitting identification information, which are associated with the working pressure information and bore diameter information input in the input section, from the hose specification database and the metal fitting specification database;
Based on hose body initial position information regarding the initial position of both ends of the hose body inputted in the input unit, and hose body movable range information regarding the movable range of both ends of the hose body during operation of the aircraft body. Then, from among the hose identification information and the metal fitting identification information extracted in the extraction process, the hose identification information and the metal fitting identification information corresponding to the combination of the hose and the metal fitting most suitable for attachment to the aircraft body. a matching process of performing the matching by selecting a combination of;
and
The storage unit is configured to identify the hose most suitable for attachment to the aircraft in relation to the hose body initial position information, the hose body movable range information, and the hose body initial position information and the hose body movable range information. further comprising a preferred combination database that stores information and combinations of the metal fitting identification information in association with each other;
In the matching process, the processing unit extracts the hose body initial position information and the hose body movable range information input by the input unit from the hose identification information and the metal fitting identification information extracted in the extraction process. The combination of the hose identification information and the metal fittings identification information, which are associated with each other in the preferred combination database, is combined with the hose identification information and the metal fittings corresponding to the combination of the hose and the metal fittings that are most suitable for attachment to the aircraft body. Select as a combination of the metal fitting identification information ,
The processing unit includes:
The hose body initial position information, the hose body movable range information, the hose rigidity information and the hose dimension information associated with any one of the hose identification information in the hose specification database, and the metal fitting specification database. Using a hose body model imitating the hose body, the a simulation process that continuously simulates the behavior of the hose body during operation of the aircraft;
Based on the results of the simulation process, (a) a twist determination that determines the presence or absence of an abnormality based on whether a predetermined hose body portion of the hose body is excessively twisted; (b) the hose of the plurality of hose bodies; (c) determining whether there is an abnormality based on whether the hose of the hose body has contacted a predetermined body part of the aircraft; (d) a bending determination that determines the presence or absence of an abnormality based on whether the hose of the hose body is bent excessively; (e) a bending determination that determines the presence or absence of an abnormality based on whether the hose of the hose body is reversed. and (f) a lip determination that determines whether there is an abnormality based on whether or not the mouth of the hose of the hose body has been excessively deformed. Judgment processing and
If it is determined that there is no abnormality in the determination process, the hose body initial position information used in the simulation process, the hose body movable range information used in the simulation process, the hose targeted for the simulation process, and the a preferred combination storage process of storing a combination of the hose identification information and the metal fitting identification information corresponding to a metal fitting in the preferable combination database;
A hose/fittings matching system has been developed to further improve this . Further equipped with an output section,
The hose/metal fitting according to claim 1 or 2, wherein the processing unit further performs a combination output process of causing the output unit to output the combination of the hose identification information and the metal fitting identification information selected in the matching process. matching system. The processing unit is configured to calculate the operating pressure information associated with the one hose identification information in the hose specification database based on the working pressure information associated with the one hose identification information in the hose specification database. further performing a correction process of correcting the hose rigidity information and the hose dimension information;
Any one of claims 1 to 3, wherein, after the correction process, the processing unit performs the simulation process using the input information including the hose rigidity information and the hose dimension information corrected in the correction process. The hose/metal fitting matching system described in item 1 . A hose/metal fitting matching method using a hose/metal fitting matching system that matches the hose and the metal fittings in a hose body having a hose and a pair of metal fittings connected to both ends of the hose. There it is,
The hose body is configured to be attached to a machine body,
The hose/fittings matching system is
an input section;
storage section and
a processing section;
Equipped with
The storage unit includes:
For each of the plurality of hoses, hose identification information, operating pressure information, diameter information, hose rigidity information, and hose dimension information regarding dimensions of the hose other than the diameter information are stored in association with each other; hose specification database,
For each of the plurality of metal fittings, metal fitting identification information, operating pressure information, diameter information, metal fitting shape information, and metal fitting dimensional information regarding dimensions of the metal fitting other than the aperture information are stored in association with each other; Metal fittings specification database,
It has
The hose/fittings matching method is as follows:
The processing unit extracts, from the hose specification database and the fitting specification database, the hose identification information and the fitting identification information that are associated with the working pressure information and the diameter information input in the input unit, respectively. step and
The processing unit is configured to input hose body initial position information regarding the initial positions of both ends of the hose body, which is input through the input unit, and hose body information regarding the movable range of both ends of the hose body during operation of the machine. Based on the movable range information, from among the hose identification information and the metal fitting identification information extracted in the extraction step, the hose identification information corresponding to the combination of the hose and the metal fitting most suitable for attachment to the aircraft body. and a matching step of performing the matching by selecting a combination of the metal fitting identification information;
including;
The processing unit, in the matching step,
The hose specification database is configured for any one of the hose identification information among the hose body initial position information and the hose body movable range information inputted in the input unit and the hose identification information extracted in the extraction step. The hose rigidity information and the hose dimension information associated with each other in the metal fitting specification database are associated with any one or two of the metal fitting identification information extracted in the extraction step. Based on the input information including the metal fitting shape information and the metal fitting size information that have been obtained, the behavior of the hose body during operation of the aircraft is continuously controlled using a hose body model that imitates the hose body. a simulation step for simulating;
Based on the results of the simulation step, (a) determining the presence or absence of an abnormality based on whether or not a predetermined portion of the hose body of the hose body is excessively twisted; (c) determining the presence or absence of an abnormality based on whether the hoses of the hose body have contacted each other; (c) determining the presence or absence of an abnormality based on whether the hoses of the hose body have contacted each other; Aircraft contact determination; (d) determining the presence or absence of an abnormality based on whether the hose of the hose body is excessively bent; bending determination; (e) determining whether or not the hose of the hose body is reversed; at least one of the following: (f) a reversal determination in which the presence or absence of an abnormality is determined based on whether or not the mouth of the hose of the hose body has been excessively deformed; a judgment step;
If it is determined that there is no abnormality in the determination step, the combination of the hose identification information and the metal fitting identification information corresponding to the hose and the metal fitting targeted in the simulation step is determined to be the hose most suitable for attachment to the aircraft body. and a selection step of selecting a combination of the hose identification information and the metal fitting identification information corresponding to the combination of the metal fittings;
How to match hoses and fittings. A hose/metal fitting matching method using a hose/metal fitting matching system that matches the hose and the metal fittings in a hose body having a hose and a pair of metal fittings connected to both ends of the hose. There it is,
The hose body is configured to be attached to a machine body,
The hose/fittings matching system is
an input section;
storage section,
a processing section;
Equipped with
The storage unit is
For each of the plurality of hoses, hose identification information, operating pressure information, diameter information, hose rigidity information, and hose dimension information regarding dimensions of the hose other than the diameter information are stored in association with each other; hose specification database,
For each of the plurality of metal fittings, metal fitting identification information, operating pressure information, diameter information, metal fitting shape information, and metal fitting dimensional information regarding dimensions of the metal fitting other than the aperture information are stored in association with each other; Metal fittings specification database,
It has
The hose/fittings matching method is as follows:
The processing unit extracts, from the hose specification database and the fitting specification database, the hose identification information and the fitting identification information that are associated with the working pressure information and the diameter information input in the input unit, respectively. step and
The processing unit is configured to input hose body initial position information regarding the initial positions of both ends of the hose body, which is input through the input unit, and hose body information regarding the movable range of both ends of the hose body during operation of the machine. Based on the movable range information, from among the hose identification information and the metal fitting identification information extracted in the extraction step, the hose identification information corresponding to the combination of the hose and the metal fitting most suitable for attachment to the aircraft body. and a matching step of performing the matching by selecting a combination of the metal fitting identification information;
including;
The storage unit is configured to identify the hose most suitable for attachment to the aircraft in relation to the hose body initial position information, the hose body movable range information, and the hose body initial position information and the hose body movable range information. further comprising a preferred combination database that stores information and combinations of the metal fitting identification information in association with each other;
In the matching step, the processing unit extracts the hose body initial position information and the hose body movable range information input by the input unit from the hose identification information and the metal fitting identification information extracted in the extraction step. The combination of the hose identification information and the metal fittings identification information, which are associated with each other in the preferred combination database, is combined with the hose identification information and the metal fittings corresponding to the combination of the hose and the metal fittings that are most suitable for attachment to the aircraft body. Select as a combination of the metal fitting identification information,
The hose/fittings matching method is as follows:
The processing unit generates the hose body initial position information, the hose body movable range information, the hose rigidity information and the hose dimension information that are associated with any one of the hose identification information in the hose specification database, A hose body model imitating the hose body based on input information including the metal fitting shape information and the metal fitting size information associated with any one or two of the metal fitting identification information in the metal fitting specification database. a simulation step of continuously simulating the behavior of the hose body during operation of the aircraft body using
The processing unit performs, based on the results of the simulation step, (a) a twist determination for determining the presence or absence of an abnormality based on whether a predetermined hose body portion of the hose body is excessively twisted; (b) a plurality of the (c) a hose contact determination that determines the presence or absence of an abnormality based on whether the hoses of the hose body have contacted each other; (c) a hose contact determination based on whether the hoses of the hose body have contacted a predetermined body part of the body; (d) A bending determination that determines the presence or absence of an abnormality based on whether or not the hose of the hose body is bent excessively; (e) The hose of the hose body is inverted. and (f) a mouth judgment that determines the presence or absence of an abnormality based on whether the mouth of the hose of the hose body has been excessively deformed. , a determining step of performing at least one of the following:
If the processing unit determines that there is no abnormality in the determination step, the processing unit calculates the initial position information of the hose body used in the simulation step, the movable range information of the hose body used in the simulation step, and the target of the simulation step. a preferred combination storing step of associating and storing a combination of the hose identification information and the metal fitting identification information corresponding to the hose and the metal fitting in the preferable combination database;
How to match hoses and fittings, further including:

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