CAE (computer aided engineering) analysis method, device and equipment for carbon fiber material of seat and storage medium

Abstract

The invention provides a seat carbon fiber material CAE analysis method, device and equipment and a storage medium, and relates to the technical field of CAE analysis. The CAE analysis method for the carbon fiber material of the seat comprises the following steps: carrying out simulation analysis on the carbon fiber material suitable for the seat; and carrying out engineering analysis on the seat carbon fiber material according to a material simulation analysis result. According to the method, material simulation analysis is performed on the seat carbon fiber material, and material engineering analysis is performed on the seat carbon fiber material according to a material simulation analysis result, so that a better seat carbon fiber material and a process thereof can be analyzed in advance, and an analysis guide for generating a carbon fiber seat can be generated; therefore, the carbon fiber seat framework or component with better rigidity, strength, comfort and appearance can be designed, the design precision, performance and safety can be improved, the material utilization rate can be optimized, the design period can be shortened, and the development cost can be reduced.

Description

Technical Field

[0001] The present invention relates to the field of CAE analysis technology, and in particular to a CAE analysis method, device, equipment and storage medium for seat carbon fiber materials. Background Art

[0002] Carbon fiber composite materials have the advantages of technological appearance, light weight, high strength, strong designability and fatigue resistance. The development of new carbon fiber composite seat frames provides an effective way to solve the contradiction between the technological appearance, high performance, light weight and high-end of traditional cockpit frames, and has become a key technology line for the new generation of seats in the automotive industry.

[0003] However, due to the weak accumulation of carbon fiber analysis and design at the automotive component level at home and abroad, it is difficult to establish carbon fiber CAE analysis technology for automotive component suppliers or products. Carbon fiber CAE analysis technology based on carbon fiber material suppliers cannot provide effective solutions for carbon fiber materials and their products for requirements such as seat product performance and cost. It is difficult to provide reliable design basis and shorten the development cycle at the project establishment or program stage, which has become the main reason restricting the application of carbon fiber at the automotive seat or component level. Summary of the invention

[0004] The problem solved by the present invention is how to realize CAE analysis of carbon fiber materials for seats.

[0005] In order to solve the above problems, the present invention provides a CAE analysis method, device, equipment and storage medium for seat carbon fiber materials.

[0006] In a first aspect, the present invention provides a CAE analysis method for a seat carbon fiber material, comprising:

[0007] Conduct simulation analysis of carbon fiber materials suitable for seats;

[0008] Conduct engineering analysis of seat carbon fiber materials based on material simulation analysis results.

[0009] Optionally, the simulation analysis of the carbon fiber material suitable for the seat includes:

[0010] Perform material CAE meshing on the CAD data used to verify the carbon fiber material solution for the seats;

[0011] Establish a CAE material model for seat carbon fiber materials based on the corresponding mechanical properties of carbon fiber materials;

[0012] Establish other boundary conditions corresponding to the seat carbon fiber material solution verification condition, wherein the other boundary conditions include materials, properties, connections, contacts, constraints, gravity, loading forces and control cards;

[0013] A working condition analysis is performed based on the CAE material model of the seat carbon fiber material and the boundary conditions to determine the material simulation analysis results.

[0014] Optionally, the CAE material model of the seat carbon fiber material includes a material card model and a layer model; the step of establishing the CAE material model of the seat carbon fiber material includes:

[0015] Define the material card model of the CAE material of the seat carbon fiber material;

[0016] Define the layup model of the CAE material of the seat carbon fiber material.

[0017] Optionally, the material card model defining the CAE material of the seat carbon fiber material includes:

[0018] Define the density, Poisson's ratio, tensile / compressive strength, and tensile / compressive modulus of the material.

[0019] Optionally, the performing a working condition analysis based on the CAE material model of the seat carbon fiber material and the boundary conditions to determine the material simulation analysis result includes:

[0020] Based on the CAE material model of the seat carbon fiber material and the boundary conditions, a working condition analysis is performed to determine the analysis results under the permutations and combinations of different carbon fiber proportions, different carbon fiber material selections, different carbon fiber material layup methods, and different layup performances.

[0021] Optionally, the analysis results determined under the permutation and combination schemes formed by different carbon fiber proportions, different carbon fiber material selections, different carbon fiber material laying methods and different laying performances include:

[0022] Determine the maximum in-plane principal tensile strain and maximum in-plane shear strain of the carbon fiber material under each arrangement and combination scheme.

[0023] Optionally, performing engineering analysis of the seat carbon fiber material according to the material simulation analysis result includes:

[0024] Determining a material optimization scheme for the seat carbon fiber material according to the material simulation analysis result, wherein the material optimization scheme includes an optimization scheme for the carbon fiber proportion, an optimization scheme for the carbon fiber material selection, an optimization scheme for the carbon fiber material layup method, and an optimization scheme for the layup performance;

[0025] And / or, generating a seat carbon fiber CAE analysis guide based on the material simulation analysis results to provide a simulation definition reference and basis for the carbon fiber material simulation analysis.

[0026] In a second aspect, the present invention provides a CAE analysis device for seat carbon fiber materials, comprising:

[0027] The CAE pre-processing module is used to perform CAE meshing on the CAD data for verifying the seat carbon fiber material solution. Based on the CAE material model of the corresponding mechanical properties of the carbon fiber material, other boundary conditions corresponding to the seat carbon fiber material solution verification conditions are established to complete the seat carbon fiber material verification solution simulation model;

[0028] CAE calculation and storage software and hardware integrated module, used to calculate the CAE material model of the seat carbon fiber material, output and store the corresponding analysis results;

[0029] The CAE post-processing module is used to output the corresponding analysis results according to the preset evaluation criteria to compare and judge the better carbon fiber material solution. At the same time, it serves as the basis for determining the material simulation definition in the seat carbon fiber CAE analysis guide.

[0030] In a third aspect, the present invention provides an electronic device, including a memory and a processor;

[0031] The memory is used to store computer programs;

[0032] The processor is used to implement the CAE analysis method for seat carbon fiber materials as described in the first aspect when executing the computer program.

[0033] In a fourth aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the CAE analysis method for seat carbon fiber material as described in the first aspect is implemented.

[0034] The beneficial effects of the CAE analysis method for seat carbon fiber materials of the present invention are: performing material simulation analysis on the seat carbon fiber materials, and performing material engineering analysis on the seat carbon fiber materials based on the material simulation analysis results, so that better seat carbon fiber materials and their processes can be analyzed in advance, and an analysis guide for carbon fiber seats can be generated, thereby designing carbon fiber seat frames or components with better stiffness, strength, comfort, and appearance, which can not only improve design accuracy, performance and safety, but also optimize material utilization, shorten design cycle, and reduce development costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic diagram of a process flow of a CAE analysis method for seat carbon fiber material according to an embodiment of the present invention;

[0036] Figure 2 A schematic diagram of a material simulation analysis process according to an embodiment of the present invention;

[0037] Figure 3A schematic diagram of a process for establishing a material model according to an embodiment of the present invention;

[0038] Figure 4 A schematic diagram of a process of material engineering analysis according to an embodiment of the present invention;

[0039] Figure 5 This is a system architecture diagram of a CAE analysis device for seat carbon fiber materials according to an embodiment of the present invention;

[0040] Figure 6 A system architecture diagram of an electronic device according to an embodiment of the present invention;

[0041] Figure 7 A schematic diagram of a carbon fiber material card definition according to an embodiment of the present invention;

[0042] Figure 8 A schematic diagram of a carbon fiber ply card definition according to an embodiment of the present invention;

[0043] Fig. 9 A carbon fiber material analysis simulation cloud diagram of an embodiment of the present invention;

[0044] Fig.10 Schematic diagram of CAE analysis and comparison of material properties of different carbon fiber ply schemes according to an embodiment of the present invention Figure 1 ;

[0045] Fig.11 Schematic diagram of CAE analysis and comparison of material properties of different carbon fiber ply schemes according to an embodiment of the present invention Figure 2 ;

[0046] Fig.12 Schematic diagram of CAE analysis and comparison of material properties of different carbon fiber ply schemes according to an embodiment of the present invention Figure 3 ;

[0047] Fig.13 Schematic diagram of CAE analysis and comparison of material properties of different carbon fiber ply schemes according to an embodiment of the present invention Figure 4 . DETAILED DESCRIPTION

[0048] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be interpreted as being limited to the embodiments described herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0049] It should be understood that the various steps described in the method embodiments of the present invention may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present invention is not limited in this respect.

[0050] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to"; the term "based on" means "based at least in part on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0051] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0052] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only used for illustrative purposes, and are not used to limit the scope of these messages or information.

[0053] like Figure 1 As shown, a CAE analysis method for seat carbon fiber material provided by an embodiment of the present invention includes:

[0054] S100: Conduct simulation analysis of carbon fiber materials suitable for seats.

[0055] Specifically, combined Figures 7 to 9 As shown, firstly, a simulation analysis of the carbon fiber material suitable for the seat is carried out, including meshing, establishing a material model, establishing other boundary conditions, and performing a working condition analysis.

[0056] S200: Perform engineering analysis of seat carbon fiber materials based on material simulation analysis results.

[0057] Specifically, the engineering analysis of the carbon fiber material of the seat is carried out based on the material simulation analysis results. Figures 10 to 13As shown, for example, the material optimization scheme for seat carbon fiber materials is determined, including better seat carbon fiber materials - lower carbon fiber proportion (carbon fiber content <50%), carbon fiber material selection - the main strength material is selected from the more cost-effective T300-24K unidirectional prepreg, the carbon fiber material laying method [0° / 90° / 0° / 90° / 0° / …] odd-numbered laying method and the laying performance that meets the strength requirements. At the same time, it is used as the basis for determining the material simulation definition in the seat carbon fiber CAE analysis guide. By performing material simulation analysis on the seat carbon fiber material, the problem of carbon fiber CAE material definition is solved, and through the selection analysis of different material schemes, the carbon fiber material scheme suitable for seat performance and cost is screened out.

[0058] Among them, the comparison between T300-3K and T300-24K is shown in Table 1 and Table 2 below:

[0059] Table 1: Mechanical properties of T300-3K carbon fiber braided prepreg

[0060]

[0061] Table 2: Mechanical properties of T300-24K carbon fiber unidirectional prepreg

[0062]

[0063] In this embodiment, material simulation analysis is performed on the seat carbon fiber material, and material engineering analysis is performed on the seat carbon fiber material based on the material simulation analysis results, so that better seat carbon fiber materials and processes can be analyzed in advance, and an analysis guide for carbon fiber seats can be generated, so that carbon fiber seat frames or components with better stiffness, strength, comfort, and appearance can be designed, which can not only improve design accuracy, performance, and safety, but also optimize material utilization, shorten design cycle, and reduce development costs.

[0064] Optionally, the simulation analysis of the carbon fiber material suitable for the seat includes:

[0065] S110: Perform material CAE meshing on the CAD data used to verify the carbon fiber material solution for the seat.

[0066] Specifically, combined Figure 2 As shown, material CAE meshing is performed on the CAD data for verifying the carbon fiber material solution of the seat to generate mesh units.

[0067] S120: Establish a CAE material model of seat carbon fiber material based on the corresponding mechanical properties of the carbon fiber material.

[0068] Specifically, combined Figure 2As shown, on the basis of mesh division, the material model of the carbon fiber material of the seat is established according to the corresponding mechanical properties of the carbon fiber material, and the mechanical properties and laying method of the carbon fiber composite material are defined.

[0069] S130: Establishing other boundary conditions corresponding to the seat carbon fiber material solution verification condition, wherein the other boundary conditions include material, attribute, connection, contact, constraint, gravity, loading force and control card.

[0070] Specifically, combined Figure 2 As shown, establish other boundary conditions such as materials, properties, connections, contacts, constraints, gravity, load forces, and control cards.

[0071] S140: Performing a working condition analysis based on the CAE material model of the seat carbon fiber material and the boundary conditions to determine the material simulation analysis result.

[0072] Specifically, combined Figure 2 As shown, the working condition analysis is performed based on the material model and boundary conditions. For example, Ls-Dyna is used to calculate the carbon fiber material performance scheme of each seat (the arrangement and combination scheme formed by different carbon fiber proportions, carbon fiber material selection, carbon fiber material laying method, and laying performance), and Hyperview is used for post-processing to output the analysis results of the carbon fiber material performance scheme of each seat, such as the maximum in-plane principal tensile strain, the maximum in-plane shear strain and other key evaluation items, so as to determine the material simulation analysis results.

[0073] In this optional embodiment, by performing material simulation analysis on the carbon fiber material of the seat, a working condition analysis is performed on the basis of the established material model to determine the material simulation analysis result, and then an engineering analysis of the carbon fiber material of the seat can be performed.

[0074] Optionally, the CAE material model of the seat carbon fiber material includes a material card model and a layer model; the step of establishing the CAE material model of the seat carbon fiber material includes:

[0075] S121: Define the material card model for the CAE material of the seat carbon fiber material.

[0076] Specifically, combined Figure 3 As shown, since carbon fiber materials have different mechanical properties in different directions, it is necessary to define mechanical property parameters such as material density, Poisson's ratio, tensile / compressive strength, tensile / compressive modulus, etc. for different directions.

[0077] S122: Define the layup model of the seat carbon fiber CAE material.

[0078] Specifically, combined Figure 3As shown in the figure, according to the design requirements, the laying angle of each layer of carbon fiber is defined, and the laying order of each layer is determined. A reasonable laying order helps to improve the strength, stiffness, fatigue performance, etc. of the material. The layup structure determines the material property modeling of carbon fiber composite materials (such as anisotropy and the influence of the layup order on mechanical properties), which affects the subsequent key analysis results of different material schemes. The material model and layup rules are the basis of the entire simulation. Without an accurate layup structure definition, it is impossible to perform subsequent carbon fiber product molding process simulation and overall structural performance analysis. For example, in the collision simulation of carbon fiber seats, the layup direction will affect the strength distribution and energy absorption characteristics of the molded structure in the local stress area.

[0079] In this optional embodiment, a carbon fiber material model is established by defining a material card model and a layer model, thereby providing detailed carbon fiber material data for subsequent working condition analysis.

[0080] Optionally, the material card model defining the CAE material of the seat carbon fiber material includes:

[0081] Define the density, Poisson's ratio, tensile / compressive strength, and tensile / compressive modulus of the material.

[0082] Specifically, since carbon fiber materials have different mechanical properties in different directions, it is necessary to define mechanical property parameters such as material density, Poisson's ratio, tensile / compressive strength, tensile / compressive modulus, etc. for different directions, so as to define the material card model of the seat carbon fiber material CAE material.

[0083] In this optional embodiment, by defining a material card model of the CAE material of the seat carbon fiber material, detailed carbon fiber material data is provided for subsequent working condition analysis.

[0084] Optionally, the performing a working condition analysis based on the CAE material model of the seat carbon fiber material and the boundary conditions to determine the material simulation analysis result includes:

[0085] Based on the CAE material model of the seat carbon fiber material and the boundary conditions, a working condition analysis is performed to determine the analysis results under the permutations and combinations of different carbon fiber proportions, different carbon fiber material selections, different carbon fiber material layup methods, and different layup performances.

[0086] Specifically, Ls-Dyna can be used to calculate the performance schemes of carbon fiber materials for each seat (permutations and combinations of different carbon fiber proportions, carbon fiber material selection, carbon fiber material laying methods, and laying performance) to obtain analysis results under each permutation and combination scheme.

[0087] In this optional embodiment, a working condition analysis is performed on the basis of the established material model to determine the material simulation analysis results, and then an engineering analysis of the seat carbon fiber material can be performed.

[0088] Optionally, the analysis results determined under the permutation and combination schemes formed by different carbon fiber proportions, different carbon fiber material selections, different carbon fiber material laying methods and different laying performances include:

[0089] Determine the maximum in-plane principal tensile strain and maximum in-plane shear strain of the carbon fiber material under each arrangement and combination scheme.

[0090] Specifically, Hyperview post-processing can be used to output the analysis results of the performance scheme of each seat carbon fiber material, such as the maximum in-plane principal tensile strain, maximum in-plane shear strain and other key evaluation items of the carbon fiber material, that is, to determine the material simulation analysis results.

[0091] In this optional embodiment, by determining the maximum in-plane principal tensile strain and the maximum in-plane shear strain under each arrangement and combination scheme, an engineering analysis of the carbon fiber material of the seat can be performed.

[0092] Optionally, performing engineering analysis of the seat carbon fiber material according to the material simulation analysis result includes:

[0093] S210: Determine a material optimization scheme for the seat carbon fiber material according to the material simulation analysis result, wherein the material optimization scheme includes an optimization scheme for the carbon fiber proportion, an optimization scheme for the carbon fiber material selection, an optimization scheme for the carbon fiber material laying method, and an optimization scheme for the laying performance.

[0094] Specifically, combined Figure 4 As shown, the material optimization scheme of the seat carbon fiber material is determined according to the material simulation analysis results, including the optimization scheme for the carbon fiber proportion, the optimization scheme for the carbon fiber material selection, the optimization scheme for the carbon fiber material laying method and the optimization scheme for the laying performance. For example, the seat carbon fiber material - a lower carbon fiber proportion (carbon fiber content <50%), carbon fiber material selection - the main strength material uses the more cost-effective T300-24K unidirectional prepreg, the carbon fiber material laying method [0° / 90° / 0° / 90° / 0° / …] odd-numbered laying method and laying performance that meets the strength requirements.

[0095] S220: Generate a seat carbon fiber CAE analysis guide based on the material simulation analysis results to provide a simulation definition reference and basis for the skeleton simulation analysis.

[0096] Specifically, combined Figure 4As shown in the figure, the CAE analysis guide for seat carbon fiber is generated based on the material simulation analysis results. The specific technical details of the simulation analysis can be standardized to ensure that the CAE simulation work is performed according to the standardized process. The exemplary analysis guide includes:

[0097] (1) The mesh size standard of the seat carbon fiber material is 3±1mm (the mesh size standard of the seat metal material is 5±2.5mm, and the mesh size standard of the vehicle metal material is 8±4mm), which is analyzed through iterative simulation at the carbon fiber material level;

[0098] (2) Setting the carbon fiber hole structure with two layers of Washer to solve the stress concentration creep problem around the hole structure;

[0099] (3) The carbon fiber ratio of the seat carbon fiber material is 45% ± 5% (the carbon fiber ratio of the automotive carbon fiber material is 60% ± 5%), and the density is ≤ 1.5g / cm3;

[0100] (4) Set the material selection T300 of the seat carbon fiber material and its prepreg form, such as 0.2mm thick 3K woven prepreg, 0.2mm thick 12K woven prepreg, 0.15mm thick 12K unidirectional prepreg, etc.;

[0101] (5) From the outside to the inside, the first layer of the exterior surface is made of 0.2 mm thick 3K woven prepreg, the second layer is made of 0.2 mm thick 12K woven prepreg, and the third layer and onwards are made of 0.15 mm thick 12K unidirectional prepreg, using an odd number of plies such as 0° / 90° / 0° / 90° / 0° / …, and the minimum number of plies is 3, and the first and last layers of the unidirectional prepreg are both laid in a 0° ply direction;

[0102] (6) Set damping *DAMPING_PART_STIFFNESS to avoid noise that may be generated by anisotropic materials;

[0103] (7) Set *CONTROL_SHELL to ISTUPD = 0 to ignore the change in shell element thickness;

[0104] (8) Set the carbon fiber seat frame calculation time step = 5.56*K (0<K≤1);

[0105] (9) CAE failure criteria for seat carbon fiber materials: ① The maximum in-plane principal tensile strain (in-plane maxprinciple strain) is not greater than 0.025, and it is allowed to reach 0.03 locally; ② The maximum in-plane shear strain (in-plane maxshear) is not greater than 0.05.

[0106] In this optional embodiment, the generated seat carbon fiber CAE analysis guide can standardize the specific technical details of the simulation analysis, such as providing standardized operating steps and methods for the simulation analysis process, ensuring that during the design and optimization process, all simulation work can be carried out in accordance with a unified and standardized process to obtain accurate and consistent results.

[0107] like Figure 5 As shown, a CAE analysis device 500 for seat carbon fiber material provided by an embodiment of the present invention includes:

[0108] A CAE pre-processing module 510 is used to perform CAE meshing of the CAD data for verifying the seat carbon fiber material solution, and to establish other boundary conditions corresponding to the seat carbon fiber material solution verification working condition according to the CAE material model of the corresponding mechanical properties of the carbon fiber material, so as to complete the seat carbon fiber material verification solution simulation model;

[0109] CAE calculation and storage software and hardware integrated module 520, used to calculate the CAE material model of the seat carbon fiber material, output and store the corresponding analysis results;

[0110] The CAE post-processing module 530 is used to output corresponding analysis results according to preset evaluation criteria to compare and judge the better carbon fiber material solution, and at the same time, serve as a basis for determining the material simulation definition in the seat carbon fiber CAE analysis guide.

[0111] like Figure 6 As shown, an electronic device 600 provided by an embodiment of the present invention includes a memory 620 and a processor 610; the memory 620 is used to store a computer program; the processor 610 is used to implement the above-mentioned CAE analysis method for seat carbon fiber materials when executing the computer program.

[0112] In other words, an electronic device 600 includes a memory 620 and a processor 610 coupled to the memory 620; the memory 620 is configured to store a computer program; and the processor 610 is configured to perform the following operations when executing the computer program:

[0113] Conduct simulation analysis of carbon fiber materials suitable for seats;

[0114] Conduct engineering analysis of seat carbon fiber materials based on material simulation analysis results.

[0115] An embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the above-mentioned CAE analysis method for seat carbon fiber material is implemented.

[0116] In other words, a non-volatile computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the processor performs the following operations:

[0117] Conduct simulation analysis of carbon fiber materials suitable for seats;

[0118] Conduct engineering analysis of seat carbon fiber materials based on material simulation analysis results.

[0119] An electronic device 600 that can be used as a server or client of the present invention will now be described, which is an example of a hardware device that can be applied to various aspects of the present invention. The electronic device 600 is intended to represent various forms of digital electronic computer equipment, such as laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device 600 can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples, and are not intended to limit the implementation of the present invention described and / or required herein.

[0120] The electronic device 600 includes a computing unit, which can perform various appropriate actions and processes according to a computer program stored in a read-only memory (ROM) or a computer program loaded from a storage unit into a random access memory (RAM). In the RAM, various programs and data required for the operation of the device can also be stored. The computing unit, ROM, and RAM are connected to each other via a bus. An input / output (I / O) interface is also connected to the bus.

[0121] A person of ordinary skill in the art can understand that the implementation of all or part of the processes in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, the storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc. In the present application, the unit described as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, it may be located in one place, or it may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment of the present invention. In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0122] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A CAE analysis method for seat carbon fiber material, characterized in that: include: Conduct simulation analysis of carbon fiber materials suitable for seats; Conduct engineering analysis of seat carbon fiber materials based on material simulation analysis results.

2. The CAE analysis method for seat carbon fiber material according to claim 1, characterized in that: The simulation analysis of the carbon fiber material suitable for the seat includes: Perform material CAE meshing on the CAD data used to verify the carbon fiber material solution for the seats; Establish a CAE material model for seat carbon fiber materials based on the corresponding mechanical properties of carbon fiber materials; Establish other boundary conditions corresponding to the seat carbon fiber material solution verification condition, wherein the other boundary conditions include materials, properties, connections, contacts, constraints, gravity, loading forces and control cards; A working condition analysis is performed based on the CAE material model of the seat carbon fiber material and the boundary conditions to determine the material simulation analysis results.

3. The CAE analysis method for seat carbon fiber material according to claim 2, characterized in that: The CAE material model of the seat carbon fiber material includes a material card model and a layer model; the establishment of the CAE material model of the seat carbon fiber material includes: Define the material card model of the CAE material of the seat carbon fiber material; Define the layup model of the CAE material of the seat carbon fiber material.

4. The CAE analysis method for seat carbon fiber material according to claim 3, characterized in that: The material card model for defining the CAE material of the seat carbon fiber material includes: Define the density, Poisson's ratio, tensile / compressive strength, and tensile / compressive modulus of the material.

5. The CAE analysis method for seat carbon fiber material according to claim 2, characterized in that: The performing of operating condition analysis based on the CAE material model of the seat carbon fiber material and the boundary conditions to determine the material simulation analysis result includes: Based on the CAE material model of the seat carbon fiber material and the boundary conditions, a working condition analysis is performed to determine the analysis results under the permutations and combinations of different carbon fiber proportions, different carbon fiber material selections, different carbon fiber material laying methods and different laying performances.

6. The CAE analysis method for seat carbon fiber material according to claim 5, characterized in that: The analysis results determined under the arrangement and combination schemes formed by different carbon fiber proportions, different carbon fiber material selections, different carbon fiber material layup methods and different layup performances include: Determine the maximum in-plane principal tensile strain and maximum in-plane shear strain of the carbon fiber material under each arrangement and combination scheme.

7. The CAE analysis method for seat carbon fiber material according to claim 5, characterized in that: The engineering analysis of the seat carbon fiber material according to the material simulation analysis results includes: Determining a material optimization scheme for the seat carbon fiber material according to the material simulation analysis result, wherein the material optimization scheme includes an optimization scheme for the carbon fiber proportion, an optimization scheme for the carbon fiber material selection, an optimization scheme for the carbon fiber material layup method, and an optimization scheme for the layup performance; And / or, generating a seat carbon fiber CAE analysis guide based on the material simulation analysis results to provide a simulation definition reference and basis for the carbon fiber material simulation analysis.

8. A CAE analysis device for seat carbon fiber materials, characterized in that: include: The CAE pre-processing module is used to perform CAE meshing on the CAD data for verifying the seat carbon fiber material solution. Based on the CAE material model of the corresponding mechanical properties of the carbon fiber material, other boundary conditions corresponding to the seat carbon fiber material solution verification conditions are established to complete the seat carbon fiber material verification solution simulation model; CAE calculation and storage software and hardware integrated module, used to calculate the CAE material model of the seat carbon fiber material, output and store the corresponding analysis results; The CAE post-processing module is used to output the corresponding analysis results according to the preset evaluation criteria to compare and judge the better carbon fiber material solution. At the same time, it serves as the basis for determining the material simulation definition in the seat carbon fiber CAE analysis guide.

9. An electronic device, characterized in that: including memory and processor; The memory is used to store computer programs; The processor is used to implement the CAE analysis method for seat carbon fiber material according to any one of claims 1 to 7 when executing the computer program.

10. A computer-readable storage medium, characterized in that: The storage medium stores a computer program, and when the computer program is executed by the processor, the CAE analysis method for seat carbon fiber material according to any one of claims 1 to 7 is implemented.

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