JP6941835B2 - Engine room equipment placement method, engine room equipment placement device and engine room equipment placement program - Google Patents

Description

The present invention relates to a method of arranging equipment in an engine room for sharing the arrangement of equipment arranged in the engine room between different ships.

Conventionally, a plurality of devices are arranged in the engine room of a ship, but even if the size of the ship is the same, the devices used differ depending on the request of the shipowner, and the equipment arrangement in the engine room is designed for each individual ship. rice field. Therefore, even if there is equipment that is commonly used between different ships, the result is that the arrangement position will be different if it is designed for each individual ship. In addition, the deck size and equipment size are different between ships of different sizes, and it is naturally necessary to design each individual ship. Such equipment layout design in the engine room relied on the knowledge, experience, and past design information of each designer.

On the other hand, Patent Document 1 describes an invention relating to a ship engine room structure in which a pipe for an exhaust gas cleaning device is short, retrofitting is easy, and the cost required for retrofitting is low.

Japanese Unexamined Patent Publication No. 2016-159799

Since the conventional equipment layout design in the engine room was performed for each individual vessel, even if there is equipment that is commonly used between different vessels, the layout position will be different, which will increase the design cost and maintenance cost. It was.

In addition, since the design relied on the knowledge, experience, and past design information of each designer, the cost of the piping system for connecting a plurality of devices was insufficiently examined. On the other hand, in the invention described in Patent Document 1, although the piping for the exhaust gas cleaning device can be shortened, the cost of the piping system for connecting a plurality of devices cannot be reduced.

The present invention solves the above-mentioned conventional problems, and reduces the cost of a piping system for connecting a plurality of devices while standardizing the arrangement of devices arranged in the engine room among different ships. It enables equipment placement.

In order to solve the above problems, the engine room equipment arrangement method of the present invention is an engine room equipment arrangement method for sharing the arrangement of the equipment arranged in the engine room between different vessels, and is arranged in the engine room. A module generation step of dividing a plurality of devices into a common device commonly arranged on different ships and a selective device selectively arranged on different ships to generate a module, and the generated module in the engine room. A module layout plan that selects a layout plan based on the cost of the piping system that connects multiple devices from the module layout plan generation step that arranges and generates a plurality of module layout plans and the generated module layout plan. It is characterized by including a selection step.

Further, preferably, the module generation step is characterized in that a module is generated so that a piping system connecting a plurality of devices is confined in the module.

Further, preferably, the module arrangement plan selection step is characterized in that the arrangement plan is selected based on the similarity of the equipment arrangement between ships of different sizes.

Further, the engine room equipment arranging device of the present invention is an engine room equipment arranging device for sharing the arrangement of the equipment arranged in the engine room between different vessels, and a plurality of devices arranged in the engine room can be used. , A module generation means for generating a module separately for a common device commonly arranged on different ships and a selection device selectively arranged on different ships, and a plurality of generated modules arranged in the engine room. The module layout plan generation means for generating the module layout plan and the module layout plan selection means for selecting the layout plan based on the cost of the piping system connecting a plurality of devices from the generated module layout plans. It is characterized by having.

Further, the engine room equipment arrangement program of the present invention differs from the engine room equipment arrangement device for sharing the arrangement of the equipment arranged in the engine room between different ships from a plurality of devices arranged in the engine room. A module generation step for generating a module separately for a common device commonly arranged on a ship and a selective device selectively placed on a different ship, and a plurality of modules by arranging the generated module in the engine room. A module layout plan generation step for generating a layout plan and a module layout plan selection step for selecting a layout plan based on the cost of a piping system connecting a plurality of devices from the generated module layout plans are executed. Is for.

The engine room equipment arrangement method of the present invention is an engine room equipment arrangement method for sharing the arrangement of the equipment arranged in the engine room between different ships. Then, in the module generation step, a plurality of devices arranged in the engine room are divided into a common device commonly arranged on different ships and a selective device selectively arranged on different ships to generate a module. Therefore, the common equipment can be arranged in common among different ships, and the selected equipment can be arranged for each individual ship.

Further, in the module layout plan generation step, the generated modules are arranged in the engine room to generate a plurality of module plans, and in the module layout plan selection step, a plurality of devices are connected from the generated module layout plans. The cost of the piping system can be reduced by selecting the arrangement plan based on the cost of the piping system.

Further, when the module generation step is to generate a module by confining a piping system connecting a plurality of devices in the module, the number of piping in the module is increased even if the number of piping is the same. , Has the effect of reducing the number of pipes between modules. Generally, the piping in the module is short and the piping between the modules is long, and as a result, the cost of the piping system can be reduced.

Further, when the module arrangement plan selection step selects the arrangement plan based on the similarity of the equipment arrangement between the ships of different sizes, the engine room can be used even between the ships of different sizes. The arrangement of the arranged devices can be standardized.

Further, the engine room equipment arrangement device of the present invention is an apparatus capable of executing the above-mentioned engine room equipment arrangement method of the present invention.

Further, the engine room equipment arrangement program of the present invention is a program capable of causing the engine room equipment arrangement device of the present invention to execute the engine room equipment arrangement method of the present invention.

As described above, according to the present invention, it is possible to reduce the cost of the piping system for connecting a plurality of devices while standardizing the arrangement of the devices arranged in the engine room among different ships.

It is an overall flowchart of the engine room equipment arrangement method which concerns on embodiment of this invention. It is a detailed flowchart of a module generation step. It is a detailed flowchart of a module arrangement plan generation step and a module arrangement plan selection step. It is explanatory drawing of the processing content of the flowchart. It is explanatory drawing of the processing content of the flowchart. It is explanatory drawing of the processing content of the flowchart. It is explanatory drawing of the processing content of the flowchart. It is explanatory drawing of the processing content of the flowchart. It is explanatory drawing of the processing content of the flowchart. It is explanatory drawing of the processing content of the flowchart. It is explanatory drawing of the processing content of the flowchart. It is a block diagram which shows the main structure of the engine room equipment arrangement apparatus which concerns on this embodiment.

Next, the engine room equipment arrangement method according to the embodiment of the present invention will be described with reference to FIGS. 1 to 11. FIG. 1 is an overall flowchart of an engine room equipment arrangement method according to an embodiment of the present invention. FIG. 2 is a detailed flowchart of the module generation step in the overall flowchart of FIG. FIG. 3 is a detailed flowchart of the module layout plan generation step and the module layout plan selection step in the overall flowchart of FIG. 4 to 11 are explanatory views of the processing contents of each step of the flowcharts of FIGS. 1 to 3.

The method of arranging the equipment in the engine room according to the present embodiment is to reduce the design cost and the maintenance cost by standardizing the arrangement of the equipment arranged in the engine room among different vessels. The engine room equipment arrangement method according to the present embodiment can be realized by causing an information processing device such as a personal computer to function as an engine room equipment arrangement device by a program for executing each step shown below. Hereinafter, description will be given with reference to the flowcharts of FIGS. 1 to 3.

As shown in FIG. 1, the engine room equipment arrangement method according to the embodiment of the present invention includes a module generation plan S100, a module arrangement plan generation step S200, and a module arrangement plan selection step S300. First, the module generation step S100 will be described with reference to FIGS. 2 and 4 to 7. In the module generation step S100, a plurality of devices arranged in the engine room are divided into a common device commonly arranged on different ships and a selective device (optional device) selectively arranged on different ships. It is what you generate.

(Model generation for each individual ship)
For a plurality of ships (including ships of different sizes), data on equipment and piping systems (hereinafter referred to as "individual ship information") arranged in the engine room of each ship is read, and each ship is read. Generate a model (step S101). Models (ships A to D) for each individual ship are shown on the upper side of FIG. In the figure, the uncolored figure is a common device commonly arranged on the ships A to D, and the colored figure is a selective device selectively arranged on the ships A to D. .. For example, ships A to C are arranged with common equipment and different selection equipment for each, and ships D are arranged with only common equipment. Regarding common equipment, if the equipment is arranged in the same piping system, it will be treated as the same equipment even if there are differences in output, capacity, etc. depending on the ship.

(Model generation for all series)
The models for each individual ship are integrated to generate a model for the entire series (step S102). The lower part of FIG. 4 shows the models of the entire series. The models of all series are integrated as one model by connecting the selection equipment selectively arranged on the ships A to C to the common equipment commonly arranged on the ships A to D. ..

(Matrix creation)
A matrix is created from the generated models of all series (step S103). FIG. 5 shows a matrix created from all series of models. In this matrix, the numbers assigned to each device are displayed in rows and columns, and the numbers are entered in the corresponding parts where the devices are connected by piping. Since the pipes that connect the devices have different diameters, the numbers entered in the matrix are the weight, cost, pipe diameter, etc. of the unit length of the pipe, and are selected according to the purpose. In addition, a matrix is created separately for the common device and the selected device.

(Clustering process)
The created matrix is subjected to a clustering process by DSM (Design Structure Matrix) (step S104). In the clustering process by DSM, modularization is performed in a matrix shape while exchanging the rows and columns of the matrix so that the relationships are gathered diagonally. Etc., it is possible to modularize the piping system that connects multiple devices so that it is confined in the module.

(Module generation)
A module is generated by clustering a matrix created separately for a common device and a selected device (step S105). FIG. 7 shows the generated module. Two modules are generated as common equipment and three modules are generated as selective equipment. Then, by combining each module, it is possible to realize a device configuration corresponding to the specifications of the ships A to D.

Next, the module layout plan generation step S200 and the module layout plan selection step S300 will be described with reference to FIGS. 3 and 8 to 11. In the module layout plan generation step S200, the modules generated in the module generation step are arranged in the engine room to generate a plurality of module layout plans. Further, the module arrangement plan selection step S300 selects the arrangement plan from the module arrangement plans generated in the module arrangement plan teacher step S200 based on the cost of the piping system for connecting a plurality of devices.

(Mesh generation)
In order to facilitate the problem of equipment placement in the engine room, the deck of the engine room is divided into meshes (step S201). As a result, the arrangement position of each module can be represented by the coordinates divided into meshes. FIG. 8 shows the deck divided into meshes. In this embodiment, ships of different sizes are included as targets for sharing the equipment arrangement, and the indications of "58BC", "82BC", and "98BC" in FIG. 8 have three different sizes. Indicates a ship.

(Restriction generation)
From obstacles such as the shape of the ship and the passage space, a space in which the equipment cannot be placed is generated as a constraint condition (step S202). FIG. 9 shows a space in which the device cannot be arranged.

(Module information input)
The module information for each module generated in the module generation step is input (step S203). Module information includes the size of the module (the number of squares in the vertical and horizontal directions), the specification of the deck on which the module is placed, the coordinate specification when the placement position is specified, and the connection relationship between the modules (the unit length of the piping between the modules). The weight per unit), the rate at which each module is adopted in different ships), and the like. This information is used in relation to the constraint conditions of device arrangement, and in performing cost calculation and similarity calculation described later.

(Generation of module layout plan)
Each of the generated modules is arranged in the engine room to generate a plurality of module arrangement plans (step S204). In this embodiment, ships of different sizes are included as targets for standardizing the equipment arrangement, and while changing the position where a plurality of modules are arranged with respect to the coordinates obtained by dividing the deck of each ship into a mesh. Generate a layout plan.

(Cost calculation)
Cost calculation is performed for the generated module arrangement plan (step S301). The cost is calculated by summing up the costs for each individual ship to obtain the cost (total cost) for all series. The cost for each individual vessel is calculated based on the pipe length and pipe weight set by the layout plan. When calculating the pipe length, the deck should be a path along a grid divided into meshes, and in the case of pipes connecting modules with different decks, the height between the decks should be taken into consideration.

(Similarity calculation)
In the present embodiment, ships of different sizes are included as targets for standardizing the equipment arrangement, and the similarity calculation is performed on the generated module arrangement plan (step S302). The degree of similarity is an index of how similar the equipment arrangements are between ships of different sizes. As shown in FIG. 10, first, the decks are normalized with reference to the rearmost center of the decks of the ships of different sizes, and the vertical and horizontal sides of each deck are set to 1. Next, as shown in the equation of FIG. 10, the relative position distance between the series having different sizes is calculated for one module. The same calculation is performed for all modules, and the sum is used as the value of the similarity calculation.

(Evaluation function calculation)
The evaluation function is calculated based on the values calculated by the cost calculation and the similarity calculation (step S303). As the evaluation function, "evaluation function = cost calculation x weight 1 + similarity calculation x weight 2" can be used. The weight 1 and the weight 2 can be set as appropriate. If ships of different sizes are not included as targets for standardization of equipment layout (when considering only the same series), evaluation can be performed only by cost calculation.

(Select module layout plan)
Based on the calculated value of the evaluation function, the optimum layout plan is selected from the generated module layout plans (step S304). At this time, it is inefficient to generate an arrangement plan by all combinations. For example, it is possible to use a method based on a genetic algorithm that searches for the optimum value while repeating the three operations of selection, crossover, and mutation. preferable. Then, the end determination is performed (step S305), and when it is determined that the optimum value has been searched, the process ends. FIG. 11 shows the finally selected module layout plan.

In addition, for a module arrangement plan in which modules interfere with each other or between modules and obstacles, for example, a penalty may be added to the evaluation function.

The engine room equipment arrangement method according to the present embodiment is an engine room equipment arrangement method for sharing the arrangement of the equipment arranged in the engine room between different ships. Then, in the module generation step (step S100), the plurality of devices arranged in the engine room are divided into a common device commonly arranged on different ships and a selective device selectively arranged on different ships. By generating, the common equipment can be arranged in common among different vessels, and the selected equipment can be arranged for each individual ship.

Further, in the module layout plan generation step (step S200), the generated modules are arranged in the engine room to generate a plurality of module plans, and in the module layout plan selection step (step S300), among the generated module layout plans. Therefore, the cost of the piping system can be reduced by selecting the arrangement plan based on the cost of the piping system connecting a plurality of devices.

Further, when the module generation step (step S100) generates a module by confining the piping system connecting a plurality of devices in the module, even if the number of piping is the same, the module is generated. It has the effect of increasing the number of pipes and reducing the number of pipes between modules. Generally, the piping in the module is short and the piping between the modules is long, and as a result, the cost of the piping system can be reduced.

Further, when the module arrangement plan selection step (step S300) selects the arrangement plan based on the similarity of the equipment arrangement between the ships of different sizes, even between the ships of different sizes. , The arrangement of the equipment arranged in the engine room can be standardized.

As described above, according to the engine room equipment arrangement method according to the present embodiment, it is possible to reduce the cost of the piping system for connecting a plurality of equipment while standardizing the arrangement of the equipment arranged in the engine room among different ships. ..

The engine room equipment arrangement method according to the present embodiment can be realized by causing an information processing device such as a personal computer to function as an engine room equipment arrangement device by a program for executing each of the above steps. FIG. 12 is a block diagram showing a main configuration of the engine room equipment arrangement device according to the present embodiment. The configuration of the engine room equipment arrangement device shown in FIG. 12 is an example, and is not limited to this. The engine room equipment arrangement device according to the present embodiment includes a module generation means 10, a module arrangement plan generation means 20, a module arrangement plan selection means 30, an individual ship information DB 40, and a module arrangement plan DB 50.

The module generation means 10 divides the module into a common device that is commonly arranged on different ships and a selection device that is selectively placed on different ships based on the individual ship information read in the individual ship information DB 40. The process of generating and saving in the module arrangement plan DB 50 is performed.

The module layout plan generation means 20 arranges the modules stored in the module layout plan DB 50 in the engine room, generates a plurality of module layout plans, and stores them in the module layout plan DB 50.

The module arrangement plan selection means 30 performs a process of selecting an arrangement plan from the module arrangement plans stored in the module arrangement plan DB 50 based on the cost of the piping system for connecting a plurality of devices.

Although the engine room equipment arrangement method according to the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various other modifications can be made.

10 Module layout plan generation means 20 Module layout plan generation means 30 Module layout plan selection means 40 Ship information DB
50 Module layout plan DB

Claims (6)

It is a method of arranging equipment in the engine room to make the arrangement of equipment arranged in the engine room common among different vessels.
A module generation step of dividing a plurality of devices arranged in the engine room into a common device commonly arranged on a different ship and a selective device selectively arranged on a different ship to generate a module.
A module layout plan generation step of arranging the generated modules in the engine room to generate a plurality of module layout plans, and
From among the generated module placement plan, viewed contains a module placement plan selection step of selecting placement plan based on the cost of the piping system connecting a plurality of devices, and
A method for arranging equipment in an engine room , wherein the module generation step generates a module by confining a piping system connecting a plurality of devices in the module. It is a method of arranging the equipment in the engine room to make the arrangement of the equipment arranged in the engine room common among different ships.
A module generation step of dividing a plurality of devices arranged in the engine room into a common device commonly arranged on different ships and a selective device selectively arranged on different ships to generate a module.
A module layout plan generation step of arranging the generated modules in the engine room to generate a plurality of module layout plans, and
From among the generated module placement plan, viewed contains a module placement plan selection step of selecting placement plan based on the cost of the piping system connecting a plurality of devices, and
A method of arranging equipment in an engine room, wherein the module arrangement plan selection step selects an arrangement plan based on the similarity of equipment arrangement between ships of different sizes. It is an engine room equipment arrangement device for sharing the arrangement of equipment arranged in the engine room between different ships.
A module generation means for generating a module by dividing a plurality of devices arranged in an engine room into a common device commonly arranged on a different ship and a selective device selectively arranged on a different ship.
A module layout plan generation means for arranging the generated modules in the engine room to generate a plurality of module layout plans, and
From among the generated module placement plan, it possesses a module placement plan selecting means for selecting a placement plan based on the cost of the piping system connecting a plurality of devices, and
An engine room equipment arranging device , wherein the module generating means generates a module by confining a piping system connecting a plurality of devices in the module. It is an engine room equipment arrangement device for sharing the arrangement of equipment arranged in the engine room between different ships.
A module generation means for generating a module by dividing a plurality of devices arranged in an engine room into a common device commonly arranged on a different ship and a selective device selectively arranged on a different ship.
A module layout plan generation means for arranging the generated modules in the engine room to generate a plurality of module layout plans, and
From among the generated module placement plan, it possesses a module placement plan selecting means for selecting a placement plan based on the cost of the piping system connecting a plurality of devices, and
An engine room equipment arranging device, wherein the module arranging plan selection means selects an arranging plan based on the similarity of equipment arranging between ships of different sizes. For engine room equipment placement equipment to standardize the placement of equipment placed in the engine room between different vessels
A module generation step of dividing a plurality of devices arranged in the engine room into a common device commonly arranged on a different ship and a selective device selectively arranged on a different ship to generate a module.
A module layout plan generation step of arranging the generated modules in the engine room to generate a plurality of module layout plans, and
An engine room equipment layout program for executing a module layout plan selection step of selecting a layout plan based on the cost of a piping system connecting a plurality of devices from the generated module layout plans .
An engine room equipment arrangement program, wherein the module generation step generates a module by confining a piping system connecting a plurality of devices in the module . For engine room equipment placement equipment to standardize the placement of equipment placed in the engine room between different vessels
A module generation step of dividing a plurality of devices arranged in the engine room into a common device commonly arranged on a different ship and a selective device selectively arranged on a different ship to generate a module.
A module layout plan generation step of arranging the generated modules in the engine room to generate a plurality of module layout plans, and
An engine room equipment layout program for executing a module layout plan selection step of selecting a layout plan based on the cost of a piping system connecting a plurality of devices from the generated module layout plans .
An engine room equipment arrangement program, wherein the module arrangement proposal selection step selects an arrangement proposal based on the similarity of equipment arrangements between ships of different sizes .

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