Longitudinal bone-based strengthening material model design method and system

Abstract

The application provides a longitudinal frame-based stiffener model design method and system, which comprises the following steps: obtaining the design range of the stiffener in a ship model and the type of the stiffener in the design range. A plurality of floor plates in the design range are obtained, and a plurality of longitudinal frames interfering with each floor plate are determined in sequence. The type of the stiffener is determined according to the floor plate and the plurality of longitudinal frames interfering with the floor plate, and the attribute information of the stiffener is obtained based on the type of the stiffener. The position information of the plurality of longitudinal frames is obtained, and the position information of the stiffener is obtained according to the position information. The model of the stiffener is generated in the ship model according to the attribute information and the position information of the stiffener. Through the method and system provided by the application, the design modeling of the stiffener can be quickly and accurately completed based on the longitudinal frame, which provides a model basis for specification checking and finite element calculation and analysis. Moreover, the original design modeling workload is greatly reduced, and the ship design efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of ship model design technology, and more specifically, to a method and system for designing stiffener models based on longitudinal ribs. Background Technology

[0002] With the rapid development of digital design technology in the shipbuilding industry, 3D model-based digital design technology has been widely applied in the shipbuilding field. In hull structure, the longitudinal structure with transverse structure at certain rib spacing is a very important structural form, which can significantly improve the mechanical performance of the ship and effectively resist the impact of water flow during navigation.

[0003] Stiffeners, also known as anti-flexural materials, are steel structural materials added to ensure the rigidity of metal plates in ship hulls. Depending on the ship type and longitudinal girder arrangement, the forms of stiffeners in the transverse structure vary widely, making standardized design and intelligent, rapid placement impossible. Furthermore, as ship tonnage increases, the workload of designing and modeling stiffeners also increases dramatically. Therefore, the design of stiffeners presents significant challenges, directly impacting the progress of ship design and construction.

[0004] In summary, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Summary of the Invention

[0005] The purpose of this application is to provide a method and system for designing reinforcing material models based on longitudinal ribs, so as to improve the standardization rate and design iteration efficiency of reinforcing material design.

[0006] To achieve the above and other related objectives, firstly, this application provides a method for designing a reinforcing material model based on longitudinal bones, comprising the following steps:

[0007] S1. Obtain the design range of stiffeners in the ship model and the types of stiffeners within the design range.

[0008] S2. Obtain multiple ribs within the design range, and sequentially determine multiple longitudinal bones that interfere with each rib.

[0009] S3. Determine the type of the reinforcing material based on the rib plate and the multiple longitudinal bones that interfere with the rib plate, and obtain the attribute information of the reinforcing material based on the type of the reinforcing material.

[0010] S4. Obtain the position information of multiple longitudinal bones, and obtain the position information of the reinforcing material based on the position information.

[0011] S5. Based on the attribute information and location information of the reinforcing material, generate a model of the reinforcing material in the ship model to complete the design of the reinforcing material.

[0012] In one embodiment, step S1 further includes: determining a property comparison table for different types of reinforcing materials.

[0013] In one embodiment, step S3, obtaining the attribute information of the reinforcing material, includes:

[0014] Based on the type of reinforcing material, the property information of the reinforcing material is obtained by referring to the property comparison table of different types of reinforcing materials.

[0015] In one embodiment, the property information of the reinforcing material includes at least:

[0016] The reinforcing material includes material, thickness, specifications, end type, thickness, and ball head orientation.

[0017] In one implementation, step S2 further includes at least the following:

[0018] S21. Obtain the rib number and longitudinal bone number within the design range of the ship model.

[0019] S22. Obtain multiple ribs within the design range according to the rib number.

[0020] S23. Obtain multiple longitudinal bones within the design range according to the longitudinal bone number.

[0021] S24. Obtain the interference relationship between each rib and longitudinal bone based on the ship model, and obtain the multiple longitudinal bones passing through each rib based on the interference relationship.

[0022] In one embodiment, step S4, obtaining the location information of the reinforcing member, includes at least the following:

[0023] S41. Obtain the reinforcing material support surface of the reinforcing material based on the position information of the multiple longitudinal bones.

[0024] S42. Determine the longitudinal bone panel based on the endpoints of the longitudinal bone, and set the longitudinal bone panel as the boundary condition of the reinforcing material.

[0025] In one implementation, step S41 further includes at least the following:

[0026] S411. Intersect each rib and the longitudinal bone that interferes with the rib to obtain multiple intersection lines.

[0027] S412, Select the line with the smallest Z value from the multiple intersecting lines as the design intersecting line.

[0028] S413. Obtain the ball-head end point of the longitudinal bone according to the designed intersection line.

[0029] S414. Create a plane perpendicular to the rib at the end point of the ball head, the plane being the stiffener support surface.

[0030] In one implementation, when the stiffener is beveled or top-mounted, the material, specifications, end type, ball head orientation, and frame surface information of the stiffener are obtained from a property comparison table for different types of stiffeners and then assigned to the stiffener structure. When the stiffener is toe-end enlarged, the material, plate thickness, end type, plate thickness orientation, and frame surface information of the stiffener are obtained from a property comparison table for different types of stiffeners and then assigned to the stiffener structure.

[0031] According to a second aspect of this application, a longitudinal stiffener model design system is also provided, including a memory and a processor. The memory stores a computer program, which, when executed by the processor, implements the longitudinal stiffener model design method provided in the first aspect.

[0032] Compared with the prior art, the beneficial effects of this application are as follows:

[0033] In the technical solution of this application, the design of stiffeners based on the arrangement of longitudinal ribs can improve structural design efficiency, accurately and quickly generate stiffener structural models, and provide a model basis for specification verification and finite element analysis. Furthermore, it significantly reduces the original design modeling workload and improves ship design efficiency. Attached Figure Description

[0034] Figure 1 This is a flowchart of the design method for a reinforcing material model based on longitudinal bones according to an embodiment of the present invention.

[0035] Figure 2 This is a schematic diagram of a structure of ribs, longitudinal bones, and reinforcing materials in the longitudinal bone-based reinforcing material model design method of this invention.

[0036] Figure 3 This is a schematic diagram of the intersecting lines in the longitudinal stiffener model design method based on longitudinal stiffeners according to an embodiment of the present invention.

[0037] The reference numerals in the attached figures are explained as follows:

[0038] 1. Ribs; 2. Longitudinal ribs; 3. Strengthening materials. Detailed Implementation

[0039] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. These embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.

[0040] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0043] According to the first aspect of this application, see Figure 1 and Figure 2 First, a method for designing a stiffening material model based on longitudinal ribs is provided, including the following steps:

[0044] S1. Obtain the design scope of stiffener 3 in the ship model and the types of stiffener 3 within the design scope.

[0045] S2. Obtain multiple ribs 1 within the design range, and sequentially determine multiple longitudinal bones 2 that interfere with each rib 1.

[0046] S3. Determine the type of reinforcing material 3 based on the rib plate 1 and the multiple longitudinal bones 2 that interfere with the rib plate 1, and obtain the attribute information of the reinforcing material 3 based on the type of the reinforcing material 3.

[0047] S4. Obtain the position information of multiple longitudinal bones 2, and obtain the position information of the reinforcing material 3 based on the position information.

[0048] S5. Based on the attribute and location information of the reinforcing member 3, generate a model of the reinforcing member 3 in the ship model to complete the design of the reinforcing member 3.

[0049] In one embodiment, step S1 further includes the following: determining a property comparison table for different types of reinforcing materials. Table 1 is an example of a property comparison table for one type of reinforcing material.

[0050] Table 1. Comparison of Properties of Different Types of Strengthening Materials

[0051]

[0052] In one embodiment, in step S3, obtaining the attribute information of the reinforcing material 3 includes: based on the type of the reinforcing material 3, searching a property comparison table of different types of reinforcing materials to obtain the attribute information of the reinforcing material 3.

[0053] In one embodiment, the attribute information of the reinforcing material 3 includes at least: the material of the reinforcing material, the thickness of the plate, the specifications, the end type, the thickness of the plate, and the orientation of the ball head.

[0054] In one implementation, step S2 further includes at least the following:

[0055] S21. Obtain the rib number and longitudinal bone number within the design range of the ship model.

[0056] S22. Obtain multiple ribs 1 within the design range based on the rib number.

[0057] S23. Obtain multiple longitudinal bones 2 within the design range based on the longitudinal bone number.

[0058] S24. Obtain the interference relationship between each rib 1 and longitudinal bone 2 based on the ship model, and obtain the multiple longitudinal bones 2 passing through each rib 1 based on the interference relationship.

[0059] In one embodiment, obtaining the position information of the reinforcing member 3 in step S4 includes at least the following:

[0060] S41. Obtain the support surface of the reinforcing material 3 based on the position information of multiple longitudinal bones 2.

[0061] S42. Determine the longitudinal bone panel based on the endpoints of the longitudinal bone, and set the longitudinal bone panel as the boundary condition of the reinforcing material.

[0062] It should be noted that the model of the stiffener is generated in the ship model based on the support surface and boundary conditions of the stiffener, thus completing the design of the stiffener.

[0063] In one implementation, such as Figure 3 As shown, step S41 further includes at least the following:

[0064] S411, such as Figure 3 As shown, each rib 1 and the longitudinal bone 2 that interferes with the rib 1 are intersected to obtain the intersection lines L1, L2 and L3.

[0065] S412. Select the intersection line with the smallest Z value from the intersection lines L1, L2 and L3 as the design intersection line.

[0066] S413. Obtain the ball-head end point of the longitudinal rib 2 corresponding to the design intersection line, and create a plane perpendicular to the rib plate 1 at the ball-head end point. The plane is the support surface of the stiffener 3.

[0067] In one embodiment, when the stiffener is beveled or top-mounted, the stiffener structure is assigned based on information such as material, specifications, end type, ball head orientation, and frame surface obtained from Table 1. When the stiffener is toe-end enlarged, the stiffener structure is assigned based on information such as material, plate thickness, end type, plate thickness orientation, and frame surface obtained from Table 1.

[0068] According to a second aspect of this application, a longitudinal stiffener model design system is also provided, including a memory and a processor. The memory stores a computer program, which, when executed by the processor, implements the longitudinal stiffener model design method provided in the first aspect.

[0069] In summary, the longitudinal stiffener model design method and system provided in this application can avoid the increased workload caused by the increase in ship tonnage. Using the method and system provided in this application, the design modeling of stiffeners can be completed quickly and accurately based on longitudinal stiffeners, providing a model foundation for specification verification and finite element analysis. Furthermore, it significantly reduces the original design modeling workload and improves ship design efficiency. This frees up more manpower, allowing designers to devote more energy to ship design innovation and optimization.

[0070] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A method for designing a reinforcing material model based on longitudinal ribs, characterized in that, Includes the following steps: S1. Obtain the design range of stiffeners in the ship model and the types of stiffeners within the design range; S2. Obtain multiple ribs within the design range, and sequentially determine multiple longitudinal bones that interfere with each rib. S3. Determine the type of the reinforcing material based on the rib plate and the multiple longitudinal bones that interfere with the rib plate. The type of the reinforcing material is oblique, top-end type, or toe-end enlarged type. Obtain the attribute information of the reinforcing material based on the type of the reinforcing material. S4. Obtain the position information of multiple longitudinal bones, and obtain the position information of the reinforcing material based on the position information; S5. Based on the attribute information and location information of the reinforcing material, generate a model of the reinforcing material in the ship model to complete the design of the reinforcing material.

2. The method for designing a reinforcing material model based on longitudinal stiffeners according to claim 1, characterized in that, Step S1 also includes: determining a property comparison table for different types of reinforcing materials.

3. The method for designing a reinforcing material model based on longitudinal stiffeners according to claim 2, characterized in that, In step S3, obtaining the attribute information of the reinforcing material includes: Based on the type of reinforcing material, the property information of the reinforcing material is obtained by referring to the property comparison table of different types of reinforcing materials.

4. The method for designing a reinforcing material model based on longitudinal stiffeners according to claim 3, characterized in that, Step S2 also includes at least the following: S21. Obtain the rib number and longitudinal girder number within the design range of the ship model; S22. Obtain multiple ribs within the design range according to the rib number; S23. Obtain multiple longitudinal bones within the design range according to the longitudinal bone number; S24. Obtain the interference relationship between each rib and longitudinal bone based on the ship model, and obtain the multiple longitudinal bones passing through each rib based on the interference relationship.

5. The method for designing a reinforcing material model based on longitudinal stiffeners according to claim 4, characterized in that, In step S4, obtaining the location information of the reinforcing member also includes at least the following: S41. Obtain the reinforcing material support surface of the reinforcing material based on the position information of the multiple longitudinal bones; S42. Determine the longitudinal bone panel based on the endpoints of the longitudinal bone, and set the longitudinal bone panel as the boundary condition of the reinforcing material.

6. The method for designing a reinforcing material model based on longitudinal stiffeners according to claim 5, characterized in that, Step S41 also includes at least the following: S411. Intersect each rib and the longitudinal bone that interferes with the rib to obtain multiple intersection lines; S412, Select the line with the smallest Z value from among the multiple intersecting lines as the design intersecting line; S413. Obtain the ball-head end point of the longitudinal bone according to the designed intersection line; S414. Create a plane perpendicular to the rib at the end point of the ball head, the plane being the stiffener support surface.

7. A stiffening material model design system based on longitudinal ribs, characterized in that, It includes a memory and a processor, wherein the memory stores a computer program that, when executed by the processor, implements the longitudinal stiffener model design method according to any one of claims 1 to 6.

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