A quick design method and system for a container ship hatch cover system

Abstract

The application provides a container ship hatch cover system rapid design method, comprising S1, combing the constituting elements of the hatch cover; S2, constructing the hatch cover module; S3, publishing the container foot points in the cargo hold, calculating the center surface between every two columns of containers according to the container foot points, and associating the hatch cover module with the center surface; S4, calling the hatch cover module, constructing the hatch cover model corresponding to the finite element analysis, and automatically generating multiple hatch cover models combined into the hatch cover according to the hatch cover blocking principle, and listing the number of containers in the column direction under each hatch cover model; S5, under the maximum stacking condition, performing finite element deformation analysis on the hatch cover; S6, according to the deformation analysis result, changing the hatch cover blocking principle, adjusting the hatch cover module, repeating S4-S5, and obtaining different deformation results; S7, screening the optimal deformation result, and determining the design form of the hatch cover module. The application improves the efficiency and accuracy of model design.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of container hatch cover design, in particular to a container ship hatch cover system rapid design method and system. BACKGROUND

[0002] With the development of international shipping market, container ships have the characteristics of convenience, speed and fixed point, and have become the world's three major mainstream ship types. In recent years, large container ships and ultra-large container ships have emerged in an endless stream, and have gradually become the main ship type of container transport groups. Due to the limitation of the main dimensions of the ship body, more and more containers are stacked on the hatch cover, which requires considering this working condition from the initial design to meet customer requirements. At present, it is usually necessary to perform finite element calculation on the designed model to determine whether the hatch cover will deform, and if it will deform, the design form of the hatch cover and the corresponding finite element model need to be changed and calculated again. Through continuous iteration, the optimal solution is obtained. When designing the hatch cover, it is also necessary to consider that under the condition of opening only one hatch cover, the hoisting of containers in the cargo hold is not hindered. Under various considerations, the efficiency of hatch cover design is low and the accuracy is greatly challenged. SUMMARY

[0003] The purpose of the embodiment of the present application is to provide a container ship hatch cover system rapid design method and system, which synchronously generates a finite element analysis model through the design principle of modularity, can realize the rapid arrangement of the hatch cover, solves the problem that the existing hatch cover system design requires rich design experience, and improves the efficiency and accuracy of model design through the conversion of three-dimensional models and finite element models.

[0004] In a first aspect, a container ship hatch cover system rapid design method is provided, comprising:

[0005] S1, collating the constituent elements of the hatch cover, the constituent elements comprising a hatch cover body, a positioning pin, a guide device, a jump stop device and a box foot on the hatch cover for fixing a container;

[0006] S2, parameterizing and constructing the constituent elements into hatch cover modules according to the mutual relationship of the constituent elements;

[0007] S3, publishing the box foot points of the containers in the cargo hold, calculating the center surface of the distance between every two columns of containers according to the box foot points, and associating the hatch cover modules with the center surface;

[0008] S4, calling the hatch cover modules, constructing the corresponding finite element analysis hatch cover model, and automatically generating multiple hatch cover models in combination with the hatch cover blocking principle, the multiple hatch cover models being combined into a hatch cover, and listing the number of containers in the column direction under each hatch cover model;

[0009] S5, performing finite element deformation analysis on the hatch cover under the maximum stacking condition;

[0010] S6, changing the hatch cover block principle according to the deformation analysis result, adjusting the hatch cover module, and repeating S4-S5 to obtain different deformation results;

[0011] S7, screening the optimal deformation result to determine the design form of the hatch cover module.

[0012] In an embodiment, in S2, the mutual relationship of each constituent element includes the relative position relationship of the positioning pin, the guide device and the stop device with the hatch cover body, and the relative position is a range value, which is adjusted according to the geometric shape of the hatch cover body and the deformation analysis result.

[0013] In an embodiment, in S3, the box foot points of the containers in the cargo hold include only the box foot points of the containers at the bottom layer in each row and each column in the cargo hold.

[0014] In an embodiment, in S2, the parameterized construction of the hatch cover module includes the structure, the number and the distribution form of the hatch cover module, which are presented in the form of parameters.

[0015] In an embodiment, in S4, the hatch cover block principle includes that each hatch cover module can accommodate an integer multiple of containers, and the outermost container is within the preset specification range from the hatch cover boundary.

[0016] In an embodiment, in S4, the automatic generation of the multi-block hatch cover model includes the automatic generation of a 3-block hatch cover model.

[0017] In an embodiment, in S6, the adjustment of the hatch cover module includes the adjustment of the geometric shape, the number and the distribution form of the hatch cover body.

[0018] According to a second aspect of the present application, a rapid design system of a container ship hatch cover system is also provided, which comprises:

[0019] The combing module is used for combing the constituent elements of the hatch cover, and the constituent elements include the hatch cover body, the positioning pin, the guide device, the stop device and the box feet on the hatch cover for fixing the containers;

[0020] The module construction module is used for parameterizing the constituent elements into the hatch cover module according to the mutual relationship of the constituent elements;

[0021] The calculation module is used for publishing the box foot points of the containers in the cargo hold, calculating the center surface between every two columns of containers according to the box foot points, and associating the hatch cover module with the center surface.

[0022] The model construction module is configured to call the hatch cover module, construct a finite element analysis hatch cover model corresponding to the hatch cover module, and automatically generate a plurality of hatch cover models according to a hatch cover blocking principle, wherein the plurality of hatch cover models are combined to form the hatch cover, and the number of containers in the row direction of each hatch cover model is listed;

[0023] The iterative analysis module is configured to perform finite element deformation analysis on the hatch cover under the maximum stacking condition, and adjust the hatch cover module according to the deformation analysis result to obtain different deformation results.

[0024] The screening module is configured to screen the optimal deformation result to determine the design form of the hatch cover module.

[0025] The application has the following beneficial effects:

[0026] 1. Based on the box arrangement results in the pre-research and development stage and the hatch cover blocking principle, the rapid arrangement of the hatch cover can be realized through the modular design, the modeling method and model are standardized, the design cycle is shortened, the dependence of the designer on the design knowledge and experience when arranging the model is reduced, and the design quality is improved.

[0027] 2. Based on the modular design mode, the finite element analysis model can be generated synchronously, the construction cycle of the finite element model is reduced, the analysis efficiency of the finite element is improved, and the design cycle is reduced.

[0028] 3. The box foot arrangement is considered synchronously when the model is constructed, the stress points in the finite element analysis can be automatically obtained, and the finite element analysis time is shortened.

[0029] 4. The optimal hatch cover arrangement can be obtained through automatic iteration, the ship design quality can be improved, and the design blind spot caused by complete dependence on experience can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.

[0031] Figure 1 A flowchart of a rapid design method of a hatch cover system of a container ship according to the embodiments of the application is shown. DETAILED DESCRIPTION

[0032] To make the purposes, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0033] Therefore, the detailed description of the embodiments of the present application provided below in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art without creative labor based on the embodiments in the present application are within the scope of protection of the present application.

[0034] Figure 1 A flowchart of a rapid design method of a container ship hatch cover system according to the embodiments of the present application is shown. It should be noted that, for the convenience of description, the arrangement of the containers in the cargo hold is defined as the row number from the bow to the stern direction and the port to starboard direction as the column number in the embodiments of the present application, for example, the odd numbers 01, 03, 05, 07 represent the right side from the center of the ship, the even numbers 02, 04, 06, 08 represent the left side from the center of the ship, and if there is a column on the longitudinal center plane of the ship, the column number is 00.

[0035] Referring to Figure 1 The rapid design method of the container ship hatch cover system comprises the following steps.

[0036] S1, the constituent elements of the hatch cover are sorted, including the hatch cover body, the positioning pin, the guide device, the stop device, and the box feet on the hatch cover for fixing the containers; specifically, all the constituent elements of each hatch cover are sorted and divided, and here the box feet on the hatch cover for fixing the containers are also divided into the constituent elements of the hatch cover, so that the stress points in the finite element analysis can be automatically obtained and the finite element analysis time is shortened.

[0037] S2, the constituent element parameters are parameterized and constructed into a hatch cover module according to the mutual relationship of the constituent elements.

[0038] Specifically, the construction of the hatch cover module includes the constituent elements sorted in S1, including the geometric shapes of the constituent elements and the mutual relationship between the constituent elements, the mutual relationship includes the relative positions of the positioning pin, the guide device, and the stop device to the hatch cover body, and specifically, the relative positions are range values, which can be adjusted according to the geometric shape of the hatch cover and the finite element analysis results after the arrangement.

[0039] S3, obtain the box foot points of the containers in the cargo hold, calculate the center plane between the spaces of every two columns of containers according to the box foot points, and associate the hatch cover module with the center plane; associating the center plane with the hatch cover module can ensure that each hatch cover module does not interfere with the center plane in subsequent design adjustment, and the spacing value is within the specification range, so as to ensure that the hoisting of the containers in the cargo hold is not hindered under the working condition of opening only one hatch cover module.

[0040] S4, call the hatch cover module to construct a hatch cover model corresponding to the finite element analysis, and automatically generate multiple hatch cover models combined into a hatch cover according to the hatch cover blocking principle, and list the number of containers in the column direction under each hatch cover model;

[0041] S5, perform finite element deformation analysis on the hatch cover under the maximum stacking condition;

[0042] S6, according to the deformation analysis result, change the hatch cover blocking principle and adjust the hatch cover module, repeat S4-S5 to obtain different deformation results;

[0043] S7, screen out the optimal deformation result to determine the design form of the hatch cover module.

[0044] In the above implementation process, based on the box position arrangement results in the pre-research and development stage and the hatch cover blocking principle, through the modular design of integrating all the discrete parts on the hatch cover together, and based on the modular design mode, the finite element analysis model can be generated simultaneously during the module design, the rapid arrangement of the hatch cover can be realized, the modeling method and model are optimized, the design cycle is shortened, the dependence of the designer on design knowledge and experience during the arrangement of the model is reduced, and the design quality is improved.

[0045] In one embodiment, in S2, the mutual relationship of each constituent element includes the relative position of the positioning pin, the guide device and the stop device to the hatch cover body, the relative position is a range value, and the corresponding adjustment is made according to the geometric shape of the hatch cover body and the deformation analysis result. By dividing the accessories and the hatch cover body into a module, and associating the positioning pin, the guide device and the stop device with the position of the hatch cover body, the entire module is a adjustable linkage structure, which is convenient for rapid design and correction.

[0046] In one embodiment, in S3, the box foot points of the containers in the cargo hold include only the box foot points of the containers in the bottom layer of each row and each column in the cargo hold. That is, the box foot points of the bottom layer are taken as the basis for obtaining the center plane, and the center plane is more comprehensive.

[0047] In one embodiment, in S2, the parameterized construction of the hatch cover module includes the structure of the hatch cover module, the number of the hatch cover module, and the distribution form of the hatch cover module are all presented in the form of parameters. The designer can interactively select, and the automatic calculation of the optimal solution of the hatch cover size is first, the optimal solution of the hatch cover size can accommodate an integer multiple of containers, and the outermost container and the hatch cover boundary are within the specification range.

[0048] In one embodiment, in S4, the automatic generation of the multi-piece hatch cover model includes the automatic generation of a 3-piece hatch cover model. At the same time, the default number of container rows under the 3-piece hatch cover is listed, such as the number of container rows under the 3-piece hatch cover module is 6, 5, and 6, respectively.

[0049] In one embodiment, in S6, the adjustment of the hatch cover module includes the adjustment of the geometry, number, and distribution form of the hatch cover body. That is, the structure of the hatch cover body is adjusted, and the number and distribution form are adjusted accordingly.

[0050] In a second aspect, the application also provides a container ship hatch cover system rapid design system, which comprises:

[0051] The combing module is used for combing the constituent elements of the hatch cover, and the constituent elements include the hatch cover body, the positioning pin, the guide device, the anti-jump device, and the container foot on the hatch cover for fixing the container.

[0052] The module construction module is used for parameterizing the constituent elements into the hatch cover module according to the mutual relationship of the constituent elements.

[0053] The calculation module is used for publishing the container foot point in the cargo hold, calculating the center surface between every two rows of containers according to the container foot point, and associating the hatch cover module with the center surface.

[0054] The model construction module is used for calling the hatch cover module, constructing the finite element analysis hatch cover model corresponding to the hatch cover module, and automatically generating a multi-piece hatch cover model according to the hatch cover blocking principle, wherein the multi-piece hatch cover model is combined into the hatch cover, and the number of container rows in the row direction under each hatch cover model is listed.

[0055] The iterative analysis module is used for performing finite element deformation analysis on the hatch cover under the maximum stacking condition, changing the hatch cover blocking principle according to the deformation analysis result, and adjusting the hatch cover module to obtain different deformation results.

[0056] The screening module is used for screening the optimal deformation result to determine the design form of the hatch cover module.

[0057] The above descriptions are only the preferred embodiments of the present application, and are not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method of rapid design of a container ship hatch cover system, characterized by, The method comprises the following steps: S1, combing the constituent elements of the hatch cover, the constituent elements including the hatch cover body, the positioning pin, the guide device, the stop device and the box feet on the hatch cover for fixing the containers; S2, parameterizing the constituent elements to build the hatch cover module according to the mutual relationship of the constituent elements; S3, publishing the box feet points of the containers in the cargo hold, calculating the center surface of the spacing between every two columns of containers according to the box feet points, and associating the hatch cover module with the center surface; S4, calling the hatch cover module, building the hatch cover model for finite element analysis corresponding thereto, and automatically generating multiple hatch cover models in combination with the hatch cover blocking principle, the multiple hatch cover models being combined into the hatch cover, and listing the number of containers in the column direction under each hatch cover model; S5, performing finite element deformation analysis on the hatch cover under the maximum stacking condition; S6, changing the hatch cover blocking principle according to the deformation analysis result, adjusting the hatch cover module, repeating S4-S5 to obtain different deformation results; S7, screening the optimal deformation result to determine the design form of the hatch cover module.

2. The method of rapid design of a container ship hatchcover system according to claim 1, characterized in that, In S2, the mutual relationship of the constituent elements includes the relative position relationship between the positioning pin, the guide device, the stop device and the hatch cover body, the relative position being a range value, which is adjusted according to the geometric shape of the hatch cover body and the deformation analysis result.

3. The method of claim 1, wherein, In S3, the publishing of the box feet points of the containers in the cargo hold includes publishing only the box feet points of the containers in each row and each column on the bottom layer.

4. The method of claim 1, wherein, In S2, the hatch cover module includes the structure, the number and the distribution form of the hatch cover module, which are presented in the form of parameters.

5. The method of claim 1, wherein, In S4, the hatch cover blocking principle includes that each hatch cover module can accommodate an integer multiple of containers, and the outermost containers are within the preset specification range from the hatch cover boundary.

6. The method of rapid design of a container ship hatchcover system according to claim 1, wherein, In S4, the automatically generating of the multiple hatch cover models includes automatically generating 3 hatch cover models.

7. The method of claim 1, wherein, In S6, the adjusting of the hatch cover module includes adjusting the geometric shape, the number and the distribution form of the hatch cover body.

8. A container ship hatch cover system rapid design system characterized by, The method comprises the following steps: combing the constituent elements of the hatch cover, the constituent elements including the hatch cover body, the positioning pin, the guide device, the stop device and the box feet on the hatch cover for fixing the containers; parameterizing the constituent elements to build the hatch cover module according to the mutual relationship of the constituent elements; publishing the box feet points of the containers in the cargo hold, calculating the center surface of the spacing between every two columns of containers according to the box feet points, and associating the hatch cover module with the center surface; calling the hatch cover module, building the hatch cover model for finite element analysis corresponding thereto, and automatically generating multiple hatch cover models in combination with the hatch cover blocking principle, the multiple hatch cover models being combined into the hatch cover, and listing the number of containers in the column direction under each hatch cover model; iterative analysis module, for performing finite element deformation analysis on the hatch cover under the maximum stacking condition; changing the hatch cover blocking principle according to the deformation analysis result, adjusting the hatch cover module, and repeatedly calling the model building module and performing finite element deformation analysis on the hatch cover under the maximum stacking condition according to the adjusted hatch cover module to obtain different deformation results; A screening module is used to screen the optimal deformation result to determine the design form of the hatch cover module.

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