Container arrangement method and system based on CATIA parameterization

Abstract

The invention provides a container arrangement method and system based on CATIA parameterization, and the method comprises the steps: building a wall surface module, a container specification module, a container arrangement module, a container position inspection module and a container arrangement platform generation module based on a CATIA platform, and carrying out the cooperative calling of a plurality of modules, the method comprises the steps of container specification parameter endowing, ship geometric parameter creation, container arrangement boundary condition creation, container arrangement parameter endowing and the like. According to the container arrangement method, parameterized geometric modeling of the container arrangement platform of the container ship can be rapidly achieved, a geometric model of the container arrangement platform is obtained, a basis is provided for cabin modeling in the later period, the design period is greatly shortened, the design difficulty is greatly lowered, the defects that in traditional container arrangement, the workload is complex and repeated, and errors are prone to occurring are overcome, and the design efficiency is improved. Container arrangement efficiency and arrangement precision are effectively improved, and popularization and application are facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of ship design, and in particular to a container arrangement method and system based on CATIA parameterization. Background Art

[0002] Compared with traditional two-dimensional drawings, three-dimensional models have the characteristics of high visualization and high integration of design information. The three-dimensional container model of the container ship integrates a lot of design information such as the specifications and types of the container. Based on the CATIA platform, the TEU module developed through secondary development is used to realize the automatic parametric arrangement of containers, reducing unnecessary errors caused by manual operation of operators. CATIA has powerful parametric modeling capabilities. Parametric design can give the model control parameters and set boundary conditions. Control parameters can quickly change the characteristic size of the container and the spacing of the container arrangement. Boundary conditions can constrain the boundaries of the container arrangement and remove containers that exceed the boundaries, so as to realize the rapid arrangement of containers on the container ship, thereby obtaining the container arrangement platform in the cargo hold of the container ship and improving the actual design efficiency. Summary of the invention

[0003] The purpose of the present invention is to solve the deficiencies in the prior art and propose a container layout method based on CATIA parameterization. The parametric design of container layout of container ship is realized through the TEU Customized Function template based on CATIA secondary development, and the platform in the cargo hold of container ship is quickly modeled and easy to modify, thereby improving the design efficiency.

[0004] To achieve the above-mentioned and other related purposes, the present invention provides a container arrangement method based on CATIA parameterization, comprising the following steps:

[0005] Based on CATIA software, a wall module is created, which can generate the cross section corresponding to each rib position according to the imported EXCEL table including the rib position number and rib distance information;

[0006] Based on CATIA software, create a container specification module to add and generate containers of different specifications;

[0007] Based on CATIA software, a container layout module is created to obtain preliminary results of container layout under the constraints of control parameters and boundary conditions;

[0008] Based on CATIA software, a container layout module is created to remove containers that interfere with the ship's line shape in the preliminary container layout results according to the imported ship's line shape, and obtain the full container layout results;

[0009] Build the geometric model of container ship and import it into CATIA software;

[0010] Import the corresponding EXCEL table including rib position number and rib distance information, call the wall module, and create the bulkhead geometry surface;

[0011] The container layout module, container specification module, and container position inspection module are called to set control parameters and boundary conditions according to design requirements to obtain the full container arrangement results in the cargo hold.

[0012] Optionally, the method further includes the following steps:

[0013] Based on CATIA software, a container layout platform generation module is created to identify the turning points of containers according to the existing full container layout results, generate the cross-sectional contour lines of the container locations where each row number is located, and automatically generate a contour line geometry set. The contour line geometry set includes the points and lines that make up the cross-sectional contour lines. The parameters of the points and lines can be modified to leave enough margin for fine-tuning in the design.

[0014] Optionally, the rib position numbers of watertight bulkheads, cargo hold transverse compartments and common rib position surfaces are distinguished in the EXCEL table including the rib position numbers and rib spacing information, so that the software can automatically search for corresponding rib position numbers when creating bulkhead geometric surfaces.

[0015] Optionally, the control parameters include the container slot spacing in the length direction, the container slot spacing in the height direction, the container slot spacing in the width direction, the distance from the transverse compartment / bulkhead in the length direction, and the container slot arrangement direction.

[0016] Optionally, the boundary conditions include a bottom boundary, a top boundary, a front transverse bulkhead, and a rear transverse bulkhead.

[0017] Optionally, containers of different specifications include 20-foot standard containers, 40-foot standard containers, and 40-foot high containers.

[0018] The present invention also provides a container arrangement system based on CATIA parameterization, wherein the container arrangement system can execute the container arrangement method, including:

[0019] The wall module is used to automatically generate the cross section corresponding to each rib position based on the imported EXCEL table including the rib position and rib distance information;

[0020] Container specification module, used to add and generate containers of various specifications;

[0021] The container layout module is used to generate preliminary results of container layout under the constraints of various control parameters and boundary conditions;

[0022] The container position inspection module checks the preliminary results generated by the container arrangement module, automatically removes the containers that interfere with the hull in the preliminary results, and obtains the full container arrangement in the cargo hold.

[0023] Optionally, it also includes a container arrangement platform generation module, which is used to identify the turning points of the containers based on the existing full container arrangement results, generate the cross-sectional contour lines of the container locations where each row number is located, and automatically generate a contour line geometry set. The contour line geometry set includes the points and lines that make up the cross-sectional contour lines. The parameters of the points and lines can be modified to leave enough margin for fine-tuning in the design.

[0024] Optionally, the control parameters include the container slot spacing in the length direction, the container slot spacing in the height direction, the container slot spacing in the width direction, the distance from the transverse compartment / bulkhead in the length direction, and the container slot arrangement direction.

[0025] Optionally, the boundary conditions include a bottom boundary, a top boundary, a front transverse bulkhead, and a rear transverse bulkhead.

[0026] As described above, the present invention provides a container arrangement method and system based on CATIA parameterization, which has the following beneficial effects:

[0027] (1) Based on the CATIA platform, the TEU module is developed to realize the parametric arrangement of containers. The parametric geometric modeling of the container arrangement platform of the container ship can be quickly realized, and the geometric model of the container arrangement platform can be obtained, which provides a basis for the later cabin modeling, greatly shortens the design cycle and design difficulty, and is easy to promote and use;

[0028] (2) This method overcomes the shortcomings of traditional container layout, such as heavy and repetitive workload, prone to errors, and difficult post-maintenance, and effectively improves the efficiency and accuracy of container layout. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Shown is a flow chart of the container arrangement method in the first embodiment of the present invention.

[0030] Figure 2 Specific features are created for the rib surface in the first embodiment of the present invention.

[0031] Figure 3 These are the specific features of the TEU Box module in the first embodiment of the present invention.

[0032] Figure 4 Specific features are set for containers of different specifications in the first embodiment of the present invention.

[0033] Figure 5 Specific features are set for the boundary conditions in the first embodiment of the present invention.

[0034] Figure 6 This is a schematic diagram of parameters along the ship length direction in the first embodiment of the present invention.

[0035] Figure 7 It is a schematic diagram of parameters along the ship width and ship height in the first embodiment of the present invention.

[0036] Figure 8 The following are specific features of container arrangement in the first embodiment of the present invention.

[0037] Fig. 9 The following are the specific features of the container arrangement platform in the first embodiment of the present invention. DETAILED DESCRIPTION

[0038] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0039] For example, when describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional view showing the device structure will not be partially enlarged according to the general scale, and the schematic view is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional space dimensions of length, width and depth should be included.

[0040] For ease of description, spatial relational terms such as "under", "below", "below", "below", "above", "on", etc. may be used herein to describe the relationship of one element or feature shown in the drawings to other elements or features. It will be understood that these spatial relational terms are intended to include other directions of the device in use or operation in addition to the directions depicted in the drawings. In addition, when a layer is referred to as being "between" two layers, it can be the only layer between the two layers, or there can be one or more intervening layers. As used herein, "between..." means including the end point values.

[0041] In the context of the present application, a structure in which a first feature is described as being "above" a second feature may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features are formed between the first and second features, such that the first and second features may not be in direct contact.

[0042] It should be noted that the illustrations provided in this embodiment are only used to illustrate the basic concept of the present invention in a schematic manner, and therefore the illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0043] Embodiment 1

[0044] like Figures 1 to 9 As shown, this embodiment provides a container arrangement method based on CATIA parameterization, comprising the following steps:

[0045] S1: Based on CATIA software, create a wall module (Create Plane), which can automatically generate the cross section corresponding to each rib position according to the imported EXCEL table including rib position and rib distance information. The specific operation process includes the following:

[0046] S1.1: Import the 3D geometric model of the container ship into CATIA software;

[0047] S1.2: Import the rib position number and rib spacing information in the EXCEL table into CATIA software;

[0048] Specifically, the rib position number and rib distance information in the EXCEL table distinguishes the rib position numbers of the watertight bulkhead, cargo hold transverse bulkhead, and common rib position surface, so that the software can automatically search for the corresponding rib position number when creating the geometric bulkhead surface;

[0049] Specifically, the EXCEL table including the rib position and rib distance information can be used to batch modify the rib distance parameters in Relations through DesignTable;

[0050] S1.3: If Figure 2 As shown, click the Create WTTB command under TEU Customized Function to generate a cross section: select the 3DP node where the bulkhead geometry surface is located, the coordinate plane is based on the rib surface generated by S1, select the rib number where the bulkhead is located, that is, select the corresponding rib surface, and select the Hull Surface required for the design of the hull;

[0051] Then, proceed to step S2: Figure 3 As shown, based on CATIA software, a container specification module (TEU Box) is created. Containers of different specifications can be added according to different needs to meet diversified designs, such as 20-foot standard container, 40-foot standard container, 40-foot high container, etc.

[0052] Next, proceed to step S3: based on CATIA software, create a container arrangement module (TEU Arrange), which includes various control parameters and boundary conditions required for container arrangement, and the control parameters and boundary conditions can be modified according to different container specifications.

[0053] The boundary conditions include: bottom boundary, top boundary, front transverse bulkhead and rear transverse bulkhead.

[0054] The control parameters include: container spacing in length direction, container spacing in height direction, container spacing in width direction, distance from transverse compartment / bulkhead in length direction, and container layout direction.

[0055] As an example, Figure 6 , Figure 7 As shown in the figure, some control parameters are explained:

[0056] Along the length of the ship: Lx is the distance between two containers in the length direction; Lx2 is the distance between the container and the transverse compartment in the length direction.

[0057] Along the width of the ship: Bx is the distance between two containers in the width direction.

[0058] Along the height direction of the ship: Hx is the distance between the bottom boundary and the bottom container in the height direction; Gz is the distance between two containers in the height direction.

[0059] The arrangement of containers specifically includes the following operations:

[0060] S4: Perform full container layout based on the container layout module. Select the Catalog Brower command under Tools, open the TEU GEN template, click the TEU Box command, select the container specifications required for the design, and then click TEU Arrange to import the structure tree template. Under the structure tree, there are various control parameters and boundary conditions required for container layout.

[0061] S4.1: If Figure 4 As shown, select containers of different specifications, create an Anxis System at the origin, then select the required container in the TEU Box template, enter and select Anxis System, and you can insert the selected container in the structure tree. You can select containers of multiple specifications at the same time for subsequent modification and call.

[0062] S4.2: If Figure 5As shown in the figure, boundary conditions are set. After the required containers are inserted, the bottom boundary of the container layout and the top boundary of the container layout are set according to the design input. The left and right boundaries of the container layout are determined by Innerhull, where Innerhull is the Hull Surface obtained by reducing it according to a certain three-dimensional scaling ratio based on experience. Generally, the distance between the outermost end of the container and the hull is >1m; FWD and AFT are the front and rear wall boundaries of the cargo hold. After the boundary conditions are set, the scope of the container layout is limited.

[0063] S4.3: Set control parameters. Setting control parameters is to constrain the distance between containers, such as Figure 6 and Figure 7 Some of the control parameters are shown.

[0064] Next, proceed to step S5: Based on CATIA software, create a container location check module (Check TEU), which can automatically hide containers that interfere with the Innerhull line shape and obtain a container arrangement that matches the line shape, such as Figure 8 shown.

[0065] Next, proceed to step S6: Based on CATIA software, create a container layout platform generation module (Create InnerPlane), select an existing container layout geometry set, input the spacing between the transverse bulkheads according to the design requirements, and the module automatically generates a container layout platform according to the selected container layout, such as Fig. 9 shown.

[0066] Specifically, the container arrangement platform generation module can automatically identify the turning points of the arranged containers, generate the cross-sectional contour lines of each BAY (row numbers of container positions arranged along the length of the ship), and automatically generate a contour line geometry set. The contour line geometry set includes the points and lines that make up the cross-sectional contour lines. The parameters of the points and lines can be modified to leave sufficient margin for fine-tuning in the design and reduce repeated operations.

[0067] It should be noted that the above container arrangement method is carried out in a manner of creating modules while performing operations on the modules. In addition, each module can be created first and then the operations can be performed uniformly. That is to say, the container arrangement method in this embodiment does not need to be strictly carried out according to steps S1-S6.

[0068] Embodiment 2

[0069] This embodiment provides a container arrangement system based on CATIA parameterization, which can execute the container arrangement method in the above embodiment 1, specifically including:

[0070] The wall module is used to automatically generate the cross section corresponding to each rib position based on the imported EXCEL table including the rib position and rib distance information;

[0071] The container specification module is used to generate containers of various specifications to meet diversified designs, such as 20-foot standard container, 40-foot standard container, 40-foot high container, etc.

[0072] The container layout module is used to generate preliminary results of container layout under the constraints of various control parameters and boundary conditions.

[0073] The container position inspection module checks the preliminary results generated by the container arrangement module, automatically removes the containers that interfere with the hull in the preliminary results, and obtains the full container arrangement in the cargo hold.

[0074] The container arrangement platform generation module identifies the turning points of the containers according to the arrangement of full containers in the cargo hold, and generates the cross-sectional contour lines of the container positions where each row number is located. At the same time, it automatically generates a contour line geometry set, which includes the points and lines that make up the cross-sectional contour lines. The parameters of the points and lines can be modified to leave enough margin for fine-tuning in the design and reduce repeated operations.

[0075] Specifically, for the wall module, container specification module, and container arrangement platform generation module, they can essentially be understood as the process of automatically generating images and extracting special points from images. For the container layout module and container slot inspection module, they can essentially be understood as the process of calculating the optimal solution. The above modules can be secondary developed based on CATIA to realize their functions. As for their specific implementation algorithms, there are mature solutions in the prior art, which will not be introduced in detail here.

[0076] In summary, the present invention provides a container arrangement method and system based on CATIA parameterization. The container arrangement method is based on the CATIA platform, creates a wall module, a container specification module, a container layout module, a container slot inspection module and a container arrangement platform generation module, and realizes the steps of parameter assignment of container specifications, creation of ship geometric parameters, creation of container arrangement boundary conditions, and parameter assignment of container arrangement through the coordinated call of multiple modules. The container arrangement method can quickly realize the parametric geometric modeling of the container arrangement platform of the container ship, obtain the geometric model of the container arrangement platform, provide a basis for the later cabin modeling, greatly shorten the design cycle and design difficulty, overcome the defects of the traditional container arrangement that the workload is complicated, repeated, and prone to errors, effectively improve the efficiency and accuracy of the container arrangement, and facilitate popularization and use.

[0077] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A container layout method based on CATIA parameterization, characterized in that: The steps include: Based on CATIA software, a wall module is created, which can generate the cross section corresponding to each rib position according to the imported EXCEL table including the rib position number and rib distance information; Based on CATIA software, create a container specification module to add and generate containers of different specifications; Based on CATIA software, a container layout module is created to obtain preliminary results of container layout under the constraints of control parameters and boundary conditions; Based on CATIA software, a container layout module is created to remove containers that interfere with the ship's line shape in the preliminary container layout results according to the imported ship's line shape, and obtain the full container layout results; Build the geometric model of container ship and import it into CATIA software; Import the corresponding EXCEL table including rib position number and rib distance information, call the wall module, and create the bulkhead geometry surface; The container layout module, container specification module, and container position inspection module are called to set control parameters and boundary conditions according to design requirements to obtain the full container arrangement results in the cargo hold.

2. The container arrangement method according to claim 1, characterized in that: The following steps are also included: Based on CATIA software, a container layout platform generation module is created to identify the turning points of containers according to the existing full container layout results, generate the cross-sectional contour lines of the container locations where each row number is located, and automatically generate a contour line geometry set. The contour line geometry set includes the points and lines that make up the cross-sectional contour lines. The parameters of the points and lines can be modified to leave enough margin for fine-tuning in the design.

3. The container arrangement method according to claim 1, characterized in that: The EXCEL table including the rib position number and rib distance information distinguishes the rib position numbers of the watertight bulkhead, cargo hold transverse bulkhead and common rib position surface, so that the software can automatically search for the corresponding rib position number when creating the bulkhead geometric surface.

4. The container arrangement method according to claim 1, characterized in that: The control parameters include the container spacing in the length direction, the container spacing in the height direction, the container spacing in the width direction, the distance from the transverse tank / bulkhead in the length direction, and the container layout direction.

5. The container arrangement method according to claim 1, characterized in that: The boundary conditions include bottom boundary, top boundary, front transverse bulkhead and rear transverse bulkhead.

6. The container arrangement method according to claim 1, characterized in that: Containers of different specifications include 20-foot standard containers, 40-foot standard containers, and 40-foot high containers.

7. A container layout system based on CATIA parameterization, characterized in that: The container arrangement system can execute the container arrangement method according to any one of claims 1 to 6, including: The wall module is used to automatically generate the cross section corresponding to each rib position based on the imported EXCEL table including the rib position and rib distance information; Container specification module, used to add and generate containers of various specifications; The container layout module is used to generate preliminary results of container layout under the constraints of various control parameters and boundary conditions; The container position inspection module checks the preliminary results generated by the container arrangement module, automatically removes the containers that interfere with the hull in the preliminary results, and obtains the full container arrangement in the cargo hold.

8. The container arrangement system according to claim 7, characterized in that: It also includes a container arrangement platform generation module, which is used to identify the turning points of the containers based on the existing full container arrangement results, generate the cross-sectional contour lines of the container locations where each row number is located, and automatically generate a contour line geometry set. The contour line geometry set includes the points and lines that make up the cross-sectional contour lines. The parameters of the points and lines can be modified to leave enough margin for fine-tuning in the design.

9. The container arrangement system according to claim 7, characterized in that: The control parameters include the container spacing in the length direction, the container spacing in the height direction, the container spacing in the width direction, the distance from the transverse tank / bulkhead in the length direction, and the container layout direction.

10. The container arrangement system according to claim 7, characterized in that: The boundary conditions include bottom boundary, top boundary, front transverse bulkhead and rear transverse bulkhead.

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