CN114355068A - Sea condition simulation test platform design method - Google Patents
Sea condition simulation test platform design method Download PDFInfo
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- CN114355068A CN114355068A CN202111421019.XA CN202111421019A CN114355068A CN 114355068 A CN114355068 A CN 114355068A CN 202111421019 A CN202111421019 A CN 202111421019A CN 114355068 A CN114355068 A CN 114355068A
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Abstract
The invention provides a design method of a sea condition simulation test platform, which comprises the following steps: the design method comprises the following steps: s1: collecting relevant data information of the sea condition simulation test platform; s2: pouring an installation platform according to the relevant data information of the sea condition simulation test platform; s3: fixing one end of the supporting device on the mounting platform; s4: the other end of the supporting device is provided with the table body in a cross shaft connection mode; s5: connecting one end of the lifting device with the supporting device, and connecting the other end of the lifting device with the table body; s6: the drive means is mounted on the mounting platform and connected to the lifting means. The method is simple and easy to realize, and the designed platform can highly simulate real sea conditions.
Description
Technical Field
The invention relates to the field of sea condition simulation and ship electronic equipment test, in particular to a design method of a sea condition simulation test platform.
Background
The noise caused by the vibration of the ship destroys the concealment of the ship; the vibration can cause cracks or fatigue damage to the hull structure, and the service life of the ship is shortened; the performance of instruments and meters and a control system on the ship is influenced, and the hidden danger of navigation is generated; affecting the working efficiency and the living comfort of personnel on the ship.
The vibration of various machines (various internal combustion engines, pumps, fans and the like) in the ship is transmitted to the hull through the engine base, so that the vibration of the shell of the ship is caused, and the underwater sound radiation is generated. In order to effectively suppress the transmission of mechanical vibration inside a ship body, various active and passive vibration control techniques have been widely studied and applied, and a vibration damping control device (an active and passive vibration isolator, a vibration absorber, etc.) is generally installed on a vibration transmission path from an excitation source to the ship body (a base between the ship body and the excitation source) to reduce or eliminate the influence of a vibration machine on the ship body from the vibration transmission path.
In actual ship navigation, the ship body swaying motion, particularly the rolling motion, caused by waves enables the ship to incline and have certain swaying acceleration, and the propagation path from the exciting force generated by the exciting device to the ship body can be changed in the state, so that the vibration control effect is influenced, and even the control is disabled. Therefore, a design method of a sea state simulation test platform is needed to design and install a ship motion simulation platform and provide a simulation environment for early stage testing for the existing vibration damping control technology.
With the new electronic equipment for ships, especially equipment for navigation, communication, radar, power control and the like, the equipment needs to adapt to various postures, impacts and vibrations of the ships in stormy waves, and the reliability of the equipment is ensured. In order to evaluate the reliability of the newly developed electronic equipment in a fixed form, a similar test needs to be carried out on land, the state of the electronic equipment bearing ocean waves is simulated, and the reliability verification test of each wave grade is realized through an automatic program.
Disclosure of Invention
The invention aims to provide a design method of a sea state simulation test platform, which aims to solve the technical problems in the prior art.
The invention provides a design method of a sea condition simulation test platform, which comprises the following steps: the design method comprises the following steps:
s1: collecting relevant data information of the sea condition simulation test platform;
s2: pouring an installation platform according to the relevant data information of the sea condition simulation test platform;
s3: fixing one end of the supporting device on the mounting platform;
s4: the other end of the supporting device is provided with the table body in a cross shaft connection mode;
s5: connecting one end of the lifting device with the supporting device, and connecting the other end of the lifting device with the table body;
s6: the drive means is mounted on the mounting platform and connected to the lifting means.
According to the method of the invention, the lifting device comprises: the lifting mechanism comprises a support, a lifting beam, a chain wheel and chain device and a guide rail mechanism, wherein one end of the support is connected with the table body through a cross shaft, the other end of the support is connected with the supporting device through the guide rail mechanism, and the guide rail mechanism can drive the support to move up and down along the supporting device.
According to the method, the platform further comprises an electric push rod, one end of the electric push rod is connected with the supporting device, and the other end of the electric push rod is connected with the tail of the platform body; the related data information comprises a left-right swinging angle alpha of the table body around the central line of the table body, a table body width x, a shortest length y of the electric push rod, an extending amount w of the electric push rod and an extending stroke 2z of the electric push rod, and the relationship among the related data information is as follows:
Sin a＝(w-z)*2/x。
according to the method, the horizontal position of the platform is taken as a reference position, the vertical distance between the joint of the support and the platform body and the tail of the platform body is a, and the length of the support is c; the other end of the bracket is connected with the connecting point of the supporting device through the guide rail mechanism, and the vertical distance from the connecting point to the table body is b; when the position of the table body is parallel to the ground, the connecting point of the other end of the support connected with the supporting device through the guide rail mechanism is an initial position, and the vertical distance from the connecting point of the other end of the support connected with the supporting device through the guide rail mechanism to the table body is b 1; the guide rail mechanism can drive the support to move up and down along the supporting device by a downward movement distance b 2; upward movement distance b 3; the included angle between the table body and the supporting device is beta;
b-b 1+ b2 when the other end of the support moves downward from the initial position, b-b 1-b3 when the other end of the support moves upward from the initial position, according to the cosine theorem: cos β ═ a2+b2-c2)/2ab。
According to the method, before the step of pouring the installation platform according to the relevant data information of the sea condition simulation test platform, the method further comprises the following steps: and excavating a foundation pit which meets the construction requirements according to the relevant data information of the sea condition simulation test platform, and pouring an installation platform in the foundation pit.
According to the method of the invention, before the table body is arranged at the other end of the supporting device and the other end of the supporting device is connected with the table body through a cross shaft, the method further comprises the following steps: and a support rod is arranged on the support device, one end of the support rod is connected with the support device, and the other end of the support rod is connected with the wall body.
According to the method of the invention, the drive means are located in the centre of the two points of attachment of the support means to the mounting platform.
According to the method of the invention, the platform body is a bow-shaped metal truss structure.
According to the method of the invention, the length of the bow-shaped metal truss structure is 6000-8000 mm.
According to the method of the invention, the height of the bow-shaped metal truss structure is 600-800 mm.
Compared with the prior art, the technical scheme provided by the embodiment of the invention has the following advantages:
the design method of the sea condition simulation test platform provided by the invention can design and install the test platform capable of truly simulating the sea condition by calculation according to the real sea condition simulation requirement, the platform can evaluate the reliability of newly-researched electronic equipment in a setting way, similar simulation tests are carried out on land, the simulated electronic equipment bears the sea wave state, and the reliability verification test of each wave grade is realized through an automatic program.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a flow chart of a sea state simulation test platform design method by the present invention;
FIG. 2 is a left side view of a sea state simulation test platform designed by the method of the present invention;
FIG. 3 is a front view of a sea state simulation test platform designed by the method of the present invention;
FIG. 4 is a block diagram of a sea state simulation platform designed by the method of the present invention;
FIG. 5 is a structural diagram of a support of a sea state simulation test platform designed by the method of the present invention;
FIG. 6 is a diagram of the electric plug of the sea state simulation test platform designed by the method of the present invention;
FIG. 7 is a sprocket configuration view of a sea state simulation test platform designed by the method of the present invention;
in the figure: 1-table body, 2-cross beam cross shaft, 3-support, 4-upright post, 5-guiding device, 6-guide rail, 7-supporting rod, 8-cross beam, 9-inclined rod, 10-lifting beam, 11-chain adjusting device, 12-chain, 13-gantry supporting seat, 14-driving device, 15-push rod supporting seat, 16-electric push rod, 17-electric bolt, 18-chain wheel, 19-support cross shaft and 20-hinge shaft assembly.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present invention. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
Example 1:
as shown in fig. 1, the present invention provides a method for designing a sea state simulation test platform, which comprises: the table body 1, the supporting device, the lifting device and the driving device 14, as shown in fig. 2-3 in detail, the design method comprises the following steps:
s1: collecting relevant data information of the sea condition simulation test platform;
s2: pouring an installation platform according to the relevant data information of the sea condition simulation test platform;
s3: fixing one end of the supporting device on the mounting platform;
s4: the other end of the supporting device is provided with the table body 1 in a cross shaft connection mode;
s5: one end of the lifting device is connected with the supporting device, and the other end of the lifting device is connected with the table body 1;
s6: the drive means 14 is mounted on the mounting platform and connected to the lifting means.
According to the above aspect, further, the lifting device includes: the lifting mechanism comprises a support 3, a lifting beam 10, a chain wheel and chain device and a guide rail mechanism, wherein one end of the support is connected with the table body through a cross shaft, the other end of the support is connected with the supporting device through the guide rail mechanism, and the guide rail mechanism can drive the support 3 to move up and down along the supporting device.
According to the scheme, further, the platform further comprises an electric push rod 16, one end of the electric push rod 16 is connected with the supporting device, and the other end of the electric push rod 16 is connected with the tail part of the platform body 1; the related data information comprises a left-right swinging angle alpha of the table body 1 around the central line of the table body 1, a table body width x, a shortest length y of the electric push rod 16, an extending amount w of the electric push rod 16 and an extending stroke 2z of the electric push rod, and the relationship among the related data information is as follows:
Sin a＝(w-z)*2/x。
according to the scheme, further, by taking the horizontal plane of the platform as a reference position, the vertical distance between the joint of the support and the platform body 1 and the tail of the platform body 1 is a, and the length of the support is c; the other end of the bracket is connected with the connecting point of the supporting device through the guide rail mechanism, and the vertical distance from the connecting point to the table body is b; when the position of the table body is parallel to the ground, the connecting point of the other end of the support connected with the supporting device through the guide rail mechanism is an initial position, and the vertical distance from the connecting point of the other end of the support connected with the supporting device through the guide rail mechanism to the table body is b 1; the guide rail mechanism can drive the support 3 to move up and down along the supporting device by a downward movement distance b 2; upward movement distance b 3; an included angle between the table body 1 and the supporting device is beta, and specifically, the included angle between the table body 1 and the support 3 is beta;
b-b 1+ b2 when the other end of the support 3 moves downward from the initial position, b-b 1-b3 when the other end of the support 3 moves upward from the initial position, according to the cosine theorem: cos β ═ a2+b2-c2)/2ab。
According to the above scheme, further, before the step of pouring the installation platform according to the relevant data information of the sea state simulation test platform, the method further comprises the following steps: and excavating a foundation pit 21 meeting the construction requirements according to the relevant data information of the sea condition simulation test platform, and pouring an installation platform in the foundation pit 21.
According to the above scheme, further, before the table body is installed at the other end of the supporting device and the other end of the supporting device is connected with the table body 1 through the cross axle, the method further comprises the following steps: and a support rod 7 is arranged on the support device, one end of the support rod 7 is connected with the support device, and the other end of the support rod is connected with the wall body.
According to the above solution, further, the driving device 14 is located at the center of two connection points of the supporting device and the mounting platform.
According to the above aspect, the platform 1 is a bow-shaped metal truss structure.
According to the scheme, the length of the bow-shaped metal truss structure is 6000-8000mm, preferably 7500mm, and the simulated sea condition is most suitable when the length is 7500mm through a large number of experimental verifications and matching analysis operations.
According to the scheme, the height of the bow-shaped metal truss structure is 600-800mm, preferably 700mm, and through a large number of experimental verifications and matching analysis operations, when the height is 700mm, the simulated sea condition is most suitable.
According to the above solution, further, the height of the supporting device is 8000-.
According to the scheme, furthermore, the connection mode of the support rod 7 and the support device is screw connection or welding.
According to the scheme, further, the excavation of the foundation pit 21 meeting the construction requirements is carried out, the depth of the foundation pit is 4000-.
The design method for the sea state simulation test platform provided by the embodiment can design and install the test platform capable of truly simulating the sea state through calculation according to the actual sea state simulation requirement.
Example 2:
as shown in fig. 2 and 3, the present invention provides a sea state simulation test platform designed by the sea state simulation test platform design method, including: the device comprises a table body 1, a supporting device, a lifting device and a driving device 14, wherein the table body 1 is of a metal truss structure and is used for simulating a deck; the bottom end of the supporting device is fixed with the ground, and the top end of the supporting device is connected with the table body 1 and used for supporting the table body 1 and the lifting device; one end of the lifting device is connected with the supporting device, the other end of the lifting device is connected with the platform body 1, the driving device 14 provides power for the lifting device, and the lifting device drives the platform body 1 to make pitching changes around the top end of the supporting device so as to simulate various postures, impact and vibration states of a ship in stormy waves.
According to the above scheme further, the supporting device is a gantry structure, comprising: the gantry structure comprises two upright columns 4, two beams 8 and two beam cross shafts 2, wherein the two upright columns 4 are positioned on two sides of the gantry structure and fixed on the ground, the gantry structure preferably further comprises a gantry support seat 13, and the upright columns 4 are fixedly connected with the gantry support seat 13, preferably connected by bolts; the supporting seat 13 is pre-buried in the ground, so that the test platform is convenient to install and detach, and when the test platform moves or transfers, the protection effect of not damaging the whole structure of the test platform can be achieved by detaching the fixing bolts of the upright post 4 and the supporting seat 13; the cross beam 8 is vertically arranged at the upper ends of the two stand columns to form a shape like a Chinese character 'men', so that the main structure of the test platform is more stable; the cross beam 8 is hinged with the table body 1 through a cross beam cross shaft 2, so that the table body 1 can swing around the center of the cross beam cross shaft 2 in all directions.
According to a further aspect of the above solution, the lifting device comprises: the device comprises a bracket 3, a lifting beam 10, a chain wheel and chain device and a guide rail mechanism; one end of the support 3 is connected with the table body 1 through a pin shaft, and the other end of the support 3 is connected with the lifting beam 10 through a support cross shaft 19, so that the table body 1, the support 3 and the lifting beam form a triangular structure on a longitudinal section; the lifting beam 10 is mounted on the guide rail mechanism through a lifting beam mounting seat, the guide rail mechanism is fixed on the upright post 4 and slides up and down along the upright post 4 to drive one end of the support 3 to move up and down along the vertical direction of the ground, and the other end of the support 3 drives the platform body 1 to do pitching motion around the cross beam 8 to simulate the marine working condition of a ship; the chain wheel and chain device comprises a chain wheel 18 and a chain 12 shown in fig. 7, the chain wheel 18 is installed on the cross beam 8, the chain 12 is wound on the driving device 14 and the chain wheel 18 respectively, and two ends of the chain 12 are fixedly connected with the upper surface and the lower surface of the lifting beam 10 respectively; the driving device 14 is used for driving the chain 12 to run, and the chain 12 drives the lifting beam 10 to slide on the guide rail mechanism.
As shown in fig. 5, according to the above scheme, the platform further comprises a support cross 19, the support 3 is a triangular truss structure, three corner points are respectively provided with a pin shaft connecting structure, one end of the support 3 is connected with the platform body 1 through the support cross 19, the other two ends are connected with the lifting beam 10 through a hinge shaft assembly 20, and the support 3 drives the platform body 1 to change in pitch around the cross beam cross 2.
According to the above solution, further, the platform further includes: turning device, turning device includes, push rod support 15, electric putter 16, push rod support 15 is installed on the stand 4, for electric putter 16 provides mounting platform, electric putter 16 one end fixed mounting be in on the push rod support 15, the other end with stage body 1 is connected, and electric putter 16 drives through doing stretching motion the turning motion is done to the platform, preferentially support cross 19 is concentric with stand crossbeam cross 2, just so can be when stage body every single move, do not block to be strong.
According to the above solution, further, the guide rail mechanism further includes: a guide device 5 and a guide rail 6, wherein the guide rail 6 is arranged on the upright post 4; one end of the guide device 5 is fixedly connected with the lifting beam 10, preferably, the guide device is connected with the lifting beam by bolts, the other end of the guide device is installed on the guide rail 6, and sliding components such as pulleys are arranged between the guide device 5 and the guide rail 6, so that the guide device 5 can slide up and down along the guide rail 6.
According to the above solution, further, the lifting device further includes: and a chain adjusting device 11 for adjusting the tension of the chain. One end of the chain adjusting device 11 is connected with the end of the chain 12, and the other end is connected with the lifting beam 10.
According to the above solution, further, the lifting device further includes: an electric bolt 17 as shown in fig. 6, wherein the electric bolt 17 is installed on the lifting beam 10; the upright post is provided with a hole-shaped structure or a groove structure, and the electric bolt 17 can be locked with the hole-shaped structure or the groove structure.
According to the above solution, further, the platform further includes: the limiting device comprises a limiting switch and a collision iron assembly, the limiting switch is installed on the stand column 4, the collision iron assembly is installed on the lifting beam 10 and is preferably installed at two end portions of the lifting beam 10, the limiting switch and the collision iron assembly are matched for use, the collision iron assembly collides with the driving device 14 after the limiting switch to stop running, the lifting beam 10 is prevented from exceeding a limited range in the running position, and the platform is prevented from being damaged due to the fact that the swing amplitude of the platform body 1 exceeds the limit.
As shown in fig. 4, according to the above solution, further, the platform body 1 is a bow-shaped metal truss structure, which maximally simulates a real ship structure.
According to the above solution, further, the supporting device further includes: the supporting rod 7 is used for improving the overall stability of the platform; one end of the support rod 7 is fixedly installed on the wall body, the other end of the support rod is fixedly connected with the upright post, and the support rod 7 is perpendicular to the upright post 4; the number of the supporting rods 7 is at least 1.
According to the above solution, further, the supporting device further includes: the down tube 9, 9 one end fixed mounting of down tube is in on the crossbeam 8, and one end fixed mounting is in on the stand 4, the down tube 9 with the contained angle of stand 4 is the acute angle.
According to the scheme, further, the sea condition simulation test platform is installed in a foundation pit 21 with a certain depth, the depth of the foundation pit is smaller than the height of the sea condition simulation test platform, the foundation pit is of a cuboid structure, the length of the foundation pit is slightly larger than that of the platform body 1, preferably larger than 1-3 meters, and experiments can be conveniently carried out on the platform body 1 when the foundation pit stands at the edge of the pit.
The design method for the sea condition simulation test platform provided by the embodiment can evaluate the reliability of newly-researched electronic equipment in a setting mode, carry out similar simulation tests on land, simulate the state that the electronic equipment bears sea waves, realize reliability verification tests of various wave levels through automatic programs, and is simple and reliable in structure, capable of simulating sea conditions and good in economic effect.
Similarly, while operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. Thus, particular embodiments of the subject matter have been described. Other embodiments are within the scope of the following claims. In some cases, the actions recited in the claims can be performed in a different order and still achieve desirable results. Further, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some implementations, multitasking and parallel processing may be advantageous.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A design method of a sea condition simulation test platform is characterized in that the sea condition simulation test platform comprises the following steps: the design method comprises the following steps:
s1: collecting relevant data information of the sea condition simulation test platform;
s2: pouring an installation platform according to the relevant data information of the sea condition simulation test platform;
s3: fixing one end of the supporting device on the mounting platform;
s4: the other end of the supporting device is provided with the table body in a cross shaft connection mode;
s5: connecting one end of the lifting device with the supporting device, and connecting the other end of the lifting device with the table body;
s6: the drive means is mounted on the mounting platform and connected to the lifting means.
2. The method of claim 1, wherein the lifting device comprises: the lifting mechanism comprises a support, a lifting beam, a chain wheel and chain device and a guide rail mechanism, wherein one end of the support is connected with the table body through a cross shaft, the other end of the support is connected with the supporting device through the guide rail mechanism, and the guide rail mechanism can drive the support to move up and down along the supporting device.
3. The method for designing a sea state simulation test platform according to claim 2, wherein the platform further comprises an electric push rod, one end of the electric push rod is connected with the supporting device, and the other end of the electric push rod is connected with the tail part of the platform body; the related data information comprises a left-right swinging angle alpha of the table body around the central line of the table body, a table body width x, a shortest length y of the electric push rod, an extending amount w of the electric push rod and an extending stroke 2z of the electric push rod, and the relationship among the related data information is as follows:
Sin a＝(w-z)*2/x。
4. the method for designing a sea state simulation test platform according to claim 3, wherein the vertical distance from the joint of the bracket and the platform body to the tail of the platform body is a, and the length of the bracket is c, taking the platform level as a reference position; the other end of the bracket is connected with the connecting point of the supporting device through the guide rail mechanism, and the vertical distance from the connecting point to the table body is b; when the position of the table body is parallel to the ground, the connecting point of the other end of the support connected with the supporting device through the guide rail mechanism is an initial position, and the vertical distance from the connecting point of the other end of the support connected with the supporting device through the guide rail mechanism to the table body is b 1; the guide rail mechanism can drive the support to move up and down along the supporting device by a downward movement distance b 2; upward movement distance b 3; the included angle between the table body and the supporting device is beta;
b-b 1+ b2 when the other end of the support moves downward from the initial position, b-b 1-b3 when the other end of the support moves upward from the initial position, according to the cosine theorem: cos β ═ a2+b2-c2)/2ab。
5. The method for designing a sea state simulation test platform according to claim 1, wherein before the step of pouring the installation platform according to the relevant data information of the sea state simulation test platform, the method further comprises the following steps: and excavating a foundation pit which meets the construction requirements according to the relevant data information of the sea condition simulation test platform, and pouring an installation platform in the foundation pit.
6. The method for designing a sea state simulation test platform according to claim 1, wherein the platform body is installed at the other end of the supporting device, and before the other end of the supporting device is connected with the platform body through a cross shaft, the method further comprises the following steps: and a support rod is arranged on the support device, one end of the support rod is connected with the support device, and the other end of the support rod is connected with the wall body.
7. The method of claim 1, wherein the driving device is located at the center of two connecting points of the supporting device and the mounting platform.
8. The method of claim 1, wherein the platform body is a bow-shaped metal truss structure.
9. The method as claimed in claim 8, wherein the bow-shaped metal truss structure has a length of 6000-8000 mm.
10. The method as claimed in claim 9, wherein the bow-shaped metal truss structure has a height of 600-800 mm.
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