Method and device for determining tension and compression modulus of grid structure

Abstract

The invention belongs to the technical field of structural strength design, and particularly relates to a grid structure tension and compression modulus determination method and device.The method comprises the steps that S1, the long edge diagonal line size 2a, the short edge diagonal line size 2b and the beam frame width h of a grid unit are determined, the grid unit is the minimum repetitive unit forming the grid structure, and the grid unit is the minimum repetitive unit forming the grid structure; the grating unit is a rhombic beam frame, and the grating structure is a part of a full-aircraft structure; s2, the elastic modulus E of the material of the grid structure is obtained; s3, determining the tension and compression modulus of the grid structure according to the following formula: E1 = (Eh3aL) / (b3L2 + h2a2b); e2 is equal to (Eh3bL) / (a3L2 + h2b2a); wherein E1 is the tension and compression modulus along the diagonal line of the long side, E2 is the tension and compression modulus along the diagonal line of the short side, and L is the side length of the grating unit. According to the method, the calculation time is shortened, and the full-aircraft structure scheme iteration and parameter optimization efficiency is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of structural strength design, and in particular relates to a method and device for determining the tensile and compressive modulus of a grid structure. Background Art

[0002] The existing method for determining the tensile and compressive modulus of aircraft grille structures mainly establishes a detailed model of the grille structure and connects it to the natural grid model of the entire aircraft for joint solution. The quality of model mesh division and unit size have a great influence on the calculation results, and the establishment and solution of the detailed model are time-consuming. When the structural parameters change, the model needs to be re-established, which is not conducive to variable parameter research, iterative optimization of solutions and other processes. Summary of the invention

[0003] In order to solve the above problems, the present application provides a method and device for determining the tensile and compressive modulus of a grid structure, so as to get rid of the limitations of the finite element calculation method.

[0004] The first aspect of the present application provides a method for determining the tensile and compressive modulus of a grid structure, mainly comprising:

[0005] Step S1, determining the diagonal size 2a of the long side, the diagonal size 2b of the short side, and the beam width h of the grid unit, wherein the grid unit is the smallest repeating unit constituting the grid structure, the grid unit is a diamond beam, and the grid structure is a part of the whole machine structure;

[0006] Step S2, obtaining the elastic modulus E of the material of the grid structure;

[0007] Step S3: Determine the tensile and compressive modulus of the grid structure according to the following formula:

[0008] E1=(Eh 3 aL) / (b 3 L 2 +h 2 a 2 b);

[0009] E2=(Eh 3 bL) / (a 3 L 2 +h 2 b 2 a);

[0010] Among them, E1 is the tensile and compressive modulus along the long side diagonal, E2 is the tensile and compressive modulus along the short side diagonal, and L is the side length of the grid unit.

[0011] Preferably, in step S1, the diagonal size of the long side and the diagonal size of the short side of the grid unit are obtained by measurement.

[0012] Preferably, in step S1 , the size of the grid structure is measured, and the diagonal size of the long side and the diagonal size of the short side of the grid unit are calculated according to the number of grid units in the grid structure.

[0013] Preferably, step S3 further includes:

[0014] Step S4: optimizing the grid structure according to the tensile and compressive moduli of the grid structure, so that the grid structure can resist a set tensile force or compressive force.

[0015] Preferably, in step S4, optimizing the grid structure includes modifying the number of grid units.

[0016] Preferably, in step S4, optimizing the grid structure includes modifying the shape of the grid units.

[0017] The second aspect of the present application provides a device for determining the tensile and compressive modulus of a grid structure, mainly comprising:

[0018] The grid unit size parameter acquisition module is used to determine the long side diagonal size 2a, the short side diagonal size 2b, and the beam width h of the grid unit, wherein the grid unit is the smallest repeating unit constituting the grid structure, the grid unit is a diamond beam, and the grid structure is part of the whole machine structure;

[0019] A material parameter acquisition module, used to acquire the elastic modulus E of the material of the grid structure;

[0020] The grid structure tensile and compressive modulus calculation module is used to determine the tensile and compressive modulus of the grid structure according to the following formula:

[0021] E1=(Eh 3 aL) / (b 3 L 2 +h 2 a 2 b);

[0022] E2=(Eh 3 bL) / (a 3 L 2 +h 2 b 2 a);

[0023] Among them, E1 is the tensile and compressive modulus along the long side diagonal, E2 is the tensile and compressive modulus along the short side diagonal, and L is the side length of the grid unit.

[0024] Preferably, the grid unit size parameter acquisition module includes:

[0025] The measuring unit is used to obtain the diagonal size of the long side and the diagonal size of the short side of the grid unit by measurement.

[0026] Preferably, the grid unit size parameter acquisition module includes:

[0027] The calculation unit is used to calculate the diagonal size of the long side and the diagonal size of the short side of the grid unit by measuring the size of the grid structure and according to the number of grid units in the grid structure.

[0028] Preferably, the grid structure tensile and compressive modulus determination device further comprises:

[0029] The optimization module is used to optimize the grid structure according to the tensile and compressive moduli of the grid structure so that the grid structure can resist a set tensile force or compressive force.

[0030] Preferably, in the optimization module, optimizing the grid structure comprises modifying the number of grid units.

[0031] Preferably, in the optimization module, optimizing the grid structure includes modifying the shape of the grid units.

[0032] A third aspect of the present application provides a computer device, including a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method for determining the tensile and compressive modulus of a grid structure as described above.

[0033] A fourth aspect of the present application provides a readable storage medium, wherein the readable storage medium stores a computer program, and when the computer program is executed by a processor, it is used to implement the method for determining the tensile and compressive modulus of a grid structure as described above.

[0034] This application shortens the calculation time and improves the efficiency of overall machine structure scheme iteration and parameter optimization. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a flow chart of a preferred embodiment of the method for determining the tensile and compressive modulus of the grid structure of the present application.

[0036] Figure 2 It is a schematic diagram of the grille structure.

[0037] Figure 3 It is a schematic diagram of the grid unit model.

[0038] Figure 4 It is a schematic diagram of applying tensile load to the grid unit model.

[0039] Figure 5 It is a simplified schematic diagram of the grid unit model.

[0040] Figure 6 It is a schematic diagram of the structure of a computer device suitable for implementing the embodiments of the present application. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical scheme and advantages of the implementation of this application clearer, the technical scheme in the implementation of this application will be described in more detail in combination with the drawings in the implementation of this application. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The described implementation is a part of the implementation of this application, not all of the implementations. The implementation described below with reference to the drawings is exemplary and is intended to be used to explain this application, and cannot be understood as a limitation on this application. Based on the implementation in this application, all other implementations obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The implementation of this application is described in detail below in combination with the drawings.

[0042] The first aspect of the present application provides a method for determining the tensile and compressive modulus of a grid structure, such as Figure 1 As shown, it mainly includes:

[0043] Step S1, determining the diagonal size 2a of the long side, the diagonal size 2b of the short side, and the beam width h of the grid unit, wherein the grid unit is the smallest repeating unit constituting the grid structure, the grid unit is a diamond beam, and the grid structure is a part of the whole machine structure;

[0044] Step S2, obtaining the elastic modulus E of the material of the grid structure;

[0045] Step S3: Determine the tensile and compressive modulus of the grid structure according to the following formula:

[0046] E1=(Eh 3 aL) / (b 3 L 2 +h 2 a 2 b);

[0047] E2=(Eh 3 bL) / (a 3 L 2 +h 2 b 2 a);

[0048] Among them, E1 is the tensile and compressive modulus along the long side diagonal, E2 is the tensile and compressive modulus along the short side diagonal, and L is the side length of the grid unit.

[0049] The present application can quickly calculate the tensile and compressive modulus of the grid structure by measuring the parameters and the material parameters of the grid structure, thus avoiding the cumbersome steps of calculating using the finite element method. The formula given in step S3 is described below.

[0050] First reference Figure 2The whole machine structure has an opening area, and a grid structure is arranged in the opening area. According to the periodic characteristics of the structure, the minimum repeating unit (i.e., unit cell) is determined as follows: Figure 3 In the diamond beam frame shown in FIG. 1 , in step S1, the unit cell size parameters of the grid unit determined include the diagonal dimensions 2a and 2b of the diamond beam frame, and the frame height t and width h of the grid unit. According to the unit cell characteristics, it can be simplified as an orthotropic material, and because the size of the grid along the thickness direction is smaller than the size in the plane direction, there are 5 independent unit cell material stiffness parameters: elastic modulus E1 and Poisson's ratio υ along the x direction 21 , elastic modulus E2 and Poisson's ratio υ along the y direction 12 , and shear modulus G 12 , and the constitutive relationship satisfies the following formula:

[0051]

[0052] In the above formula, ε1 is the strain along the x direction, ε2 is the strain along the y direction, and γ 12 is the shear strain, σ1 is the stress along the x direction, σ2 is the stress along the y direction, τ 12 is the shear stress. Figure 3 The definitions of various directions are given in the figure, and the size parameters are marked. Specifically, the unit cell finite element model is a rhombus structure, the line connecting two opposite vertices AB of the rhombus is the x direction, and the line connecting the other two opposite vertices CD is the y direction. The distance between the two vertices in the x direction is 2a, and the distance between the two vertices in the y direction is 2b.

[0053] According to the material constitutive relationship, by applying a tensile load in the x direction to the unit cell and obtaining its deformation response, the tensile modulus and Poisson's ratio in the x direction can be derived. Correspondingly, by applying a tensile load in the y direction to the unit cell and obtaining its deformation response, the tensile modulus and Poisson's ratio in the y direction can be derived. When the unit cell structure is subjected to tension, Figure 4 As shown, the tensile load F is applied to points AB in opposite directions and parallel to the line AB. x , a tensile load F is applied to points CD in opposite directions and parallel to the line CD. y According to the symmetry between the structure and the load, it can be simplified to 1 / 4 beam frame bearing the tensile force of F / 2, such as Figure 5 As shown, there is an unknown symmetrical bending moment M at point A.

[0054] According to the deformation coordination condition, the rotation angle θ of point A can be known. A =0, by the unit load method we can get:

[0055]

[0056] Based on this, the unknown bending moment M is obtained:

[0057]

[0058] The horizontal displacement of point A can be obtained by the unit load method:

[0059]

[0060] Similarly, the vertical displacement of point A can be obtained by the unit load method:

[0061]

[0062] According to the physical meaning of elastic modulus, the tensile and compressive modulus of the x-axis, that is, the tensile and compressive modulus E1 along the diagonal of the long side is:

[0063]

[0064] Where: △u AB =2u A ,△v CD =2v A .

[0065] Substituting the horizontal displacement and vertical displacement of point A into the formula of tension and compression modulus E1, we can obtain:

[0066]

[0067] Among them, 21 is the Poisson's ratio in the x direction.

[0068] Similarly, when the unit cell is subjected to the Y-axis tensile load F, the tensile modulus of the x-axis, that is, the tensile modulus of the diagonal along the long side, is:

[0069]

[0070] Among them, 12 is the Poisson's ratio in the y direction.

[0071] According to the above formula, the dimensional parameters of the unit cell model are measured in step S1, and the structural material parameters are obtained in step S2, so that the tensile and compressive moduli in two directions can be directly calculated without constructing a finite element model.

[0072] In some optional implementations, in step S1, the diagonal size of the long side and the diagonal size of the short side of the grid unit are obtained by measurement.

[0073] In some optional embodiments, in step S1, the size of the grid structure is measured, and the diagonal size of the long side and the diagonal size of the short side of the grid unit are calculated according to the number of grid units in the grid structure. In this embodiment, the long side and the short side of the grid structure can be measured respectively, and then the two diagonal lengths of the grid unit can be calculated respectively according to the number of diamond grid units on the long side and the number of diamond grid units on the short side. After the diagonal length is determined, the side length L of the grid unit can be determined according to the Pythagorean theorem.

[0074] In some optional implementations, step S3 further includes:

[0075] Step S4: optimizing the grid structure according to the tensile and compressive moduli of the grid structure, so that the grid structure can resist a set tensile force or compressive force.

[0076] It can be understood that the tensile and compressive modulus of the grid structure is a measure of the material's ability to resist deformation under tension and compression, and is defined as the ratio of the tensile and compressive stress to the strain in the corresponding direction. The larger the tensile and compressive modulus, the stronger the material's ability to resist tensile and compressive deformation. Therefore, the grid structure can be optimized based on the calculation results to improve the grid structure's tensile and compressive resistance.

[0077] In some optional embodiments, in step S4, optimizing the grid structure includes modifying the number of grid units. In an alternative embodiment, optimizing the grid structure includes modifying the shape of the grid units.

[0078] It can be seen from the formula that after the material of the grid structure is determined, the elastic modulus E is determined. At this time, the tensile and compressive moduli are related to the size parameters of the grid unit. Under the same grid structure size, the diagonal dimensions of the long and short sides of the grid unit can be changed by modifying the number of grid units or the shape of the grid units, thereby obtaining a satisfactory tensile and compressive modulus of the grid structure.

[0079] Assuming that the material used for the metal diamond open grille structure is 7075-T7451, the elastic modulus E of the material is 70000 MPa, the dimensional parameters of the grille unit are a=10 mm, b=7 mm, t=1 mm, h=1.7 mm, the tensile and compressive moduli and Poisson's ratio of the grille structure calculated by step S3 of this application are shown in Table 1 below.

[0080] Table 1 Comparison of calculation results

[0081] <![CDATA[E1 / MPa]]> <![CDATA[E2 / MPa]]> <![CDATA[υ 21 / MPa]]> <![CDATA[υ 12 / MPa]]> This application method 790.13 195.36 1.93 0.48 Finite Element Method 748.00 185.00 1.93 0.48 difference -5.33％ -5.30％ 0.00％ 0.00％

[0082] It can be seen from the above table that the equivalent modulus calculated by this application is slightly different from the result obtained by finite element calculation. This application can be applied to the calculation of the tensile and compressive modulus of the grid structure and the optimization of the body structure.

[0083] The second aspect of the present application provides a device for determining the tensile and compressive modulus of a grid structure corresponding to the above method, mainly comprising:

[0084] The grid unit size parameter acquisition module is used to determine the long side diagonal size 2a, the short side diagonal size 2b, and the beam width h of the grid unit, wherein the grid unit is the smallest repeating unit constituting the grid structure, the grid unit is a diamond beam, and the grid structure is part of the whole machine structure;

[0085] A material parameter acquisition module, used to acquire the elastic modulus E of the material of the grid structure;

[0086] The grid structure tensile and compressive modulus calculation module is used to determine the tensile and compressive modulus of the grid structure according to the following formula:

[0087] E1=(Eh 3 aL) / (b 3 L 2 +h 2 a 2 b);

[0088] E2=(Eh 3 bL) / (a 3 L 2 +h 2 b 2 a);

[0089] Among them, E1 is the tensile and compressive modulus along the long side diagonal, E2 is the tensile and compressive modulus along the short side diagonal, and L is the side length of the grid unit.

[0090] In some optional implementations, the grid unit size parameter acquisition module includes:

[0091] The measuring unit is used to obtain the diagonal size of the long side and the diagonal size of the short side of the grid unit by measurement.

[0092] In some optional implementations, the grid unit size parameter acquisition module includes:

[0093] The calculation unit is used to calculate the diagonal size of the long side and the diagonal size of the short side of the grid unit by measuring the size of the grid structure and according to the number of grid units in the grid structure.

[0094] In some optional embodiments, the grid structure tensile and compressive modulus determination device further includes:

[0095] The optimization module is used to optimize the grid structure according to the tensile and compressive moduli of the grid structure so that the grid structure can resist a set tensile force or compressive force.

[0096] In some optional embodiments, in the optimization module, optimizing the grid structure includes modifying the number of grid units.

[0097] In some optional embodiments, in the optimization module, optimizing the grid structure includes modifying the shape of the grid units.

[0098] In a third aspect of the present application, a computer device includes a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement a method for determining the tensile and compressive modulus of a grid structure.

[0099] In a fourth aspect of the present application, a readable storage medium stores a computer program, and when the computer program is executed by a processor, it is used to implement the above-mentioned method for determining the tensile and compressive modulus of a grid structure. The computer-readable storage medium may be included in the device described in the above-mentioned embodiment; or it may exist independently without being assembled into the device. The above-mentioned computer-readable storage medium carries one or more programs, and when the above-mentioned one or more programs are executed by the device, the data is processed according to the above-mentioned method.

[0100] Reference below Figure 6 , which shows a schematic structural diagram of a computer device 400 suitable for implementing the embodiments of the present application. Figure 6 The computer device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0101] like Figure 6 As shown, the computer device 400 includes a central processing unit (CPU) 401, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 402 or a program loaded from a storage part 408 into a random access memory (RAM) 403. In the RAM 403, various programs and data required for the operation of the device 400 are also stored. The CPU 401, the ROM 402, and the RAM 403 are connected to each other via a bus 404. An input / output (I / O) interface 405 is also connected to the bus 404.

[0102] The following components are connected to the I / O interface 405: an input section 406 including a keyboard, a mouse, etc.; an output section 407 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 408 including a hard disk, etc.; and a communication section 409 including a network interface card such as a LAN card, a modem, etc. The communication section 409 performs communication processing via a network such as the Internet. A drive 410 is also connected to the I / O interface 405 as needed. A removable medium 411, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 410 as needed, so that a computer program read therefrom is installed into the storage section 408 as needed.

[0103] In particular, according to the embodiment of the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiment of the present application includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from the network through the communication part 409, and / or installed from the removable medium 411. When the computer program is executed by the central processing unit (CPU) 401, the above functions defined in the method of the present application are executed. It should be noted that the computer storage medium of the present application can be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium can be, for example, - but not limited to - a system, device or device of electricity, magnetism, light, electromagnetic, infrared, or semiconductor, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to, electrical connections with one or more conductors, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the above. In the present application, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, device, or device. In the present application, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries a computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in combination with an instruction execution system, device, or device. The program code contained on the computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, optical cable, RF, etc., or any suitable combination of the above.

[0104] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some implementations as replacements, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0105] The modules or units involved in the embodiments described in this application may be implemented by software or hardware. The modules or units described may also be set in a processor, and the names of these modules or units do not constitute limitations on the modules or units themselves in some cases.

[0106] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A method for determining the tensile and compressive modulus of a grid structure, characterized in that: include: Step S1, determining the diagonal size 2a of the long side, the diagonal size 2b of the short side, and the beam width h of the grid unit, wherein the grid unit is the smallest repeating unit constituting the grid structure, the grid unit is a diamond beam, and the grid structure is a part of the whole machine structure; Step S2, obtaining the elastic modulus E of the material of the grid structure; Step S3: Determine the tensile and compressive modulus of the grid structure according to the following formula: E1=(Eh 3 aL) / (b 3 L 2 +h 2 at 2 b); E2=(Eh 3 bL) / (a 3 L 2 +h 2 b 2 a); Among them, E1 is the tensile and compressive modulus along the long side diagonal, E2 is the tensile and compressive modulus along the short side diagonal, and L is the side length of the grid unit.

2. The method for determining the tensile and compressive modulus of a grid structure according to claim 1, characterized in that: In step S1 , the diagonal size of the long side and the diagonal size of the short side of the grid unit are obtained by measurement.

3. The method for determining the tensile and compressive modulus of a grid structure according to claim 1, characterized in that: In step S1 , the size of the grid structure is measured, and the diagonal size of the long side and the diagonal size of the short side of the grid unit are calculated according to the number of grid units in the grid structure.

4. The method for determining the tensile and compressive modulus of a grid structure according to claim 1, characterized in that: Step S3 further includes: Step S4: optimizing the grid structure according to the tensile and compressive moduli of the grid structure, so that the grid structure can resist a set tensile force or compressive force.

5. The method for determining the tensile and compressive modulus of a grid structure according to claim 4, characterized in that: In step S4, optimizing the grid structure includes modifying the number of grid units.

6. The method for determining the tensile and compressive modulus of a grid structure according to claim 4, characterized in that: In step S4, optimizing the grid structure includes modifying the shape of the grid units.

7. A device for determining the tensile and compressive modulus of a grid structure, characterized in that: include: The grid unit size parameter acquisition module is used to determine the long side diagonal size 2a, the short side diagonal size 2b, and the beam width h of the grid unit, wherein the grid unit is the smallest repeating unit constituting the grid structure, the grid unit is a diamond beam, and the grid structure is part of the whole machine structure; A material parameter acquisition module, used to acquire the elastic modulus E of the material of the grid structure; The grid structure tensile and compressive modulus calculation module is used to determine the tensile and compressive modulus of the grid structure according to the following formula: E1=(Eh 3 aL) / (b 3 L 2 +h 2 at 2 b); E2=(Eh 3 bL) / (a 3 L 2 +h 2 b 2 a); Among them, E1 is the tensile and compressive modulus along the long side diagonal, E2 is the tensile and compressive modulus along the short side diagonal, and L is the side length of the grid unit.

8. The device for determining the tensile and compressive modulus of a grid structure according to claim 7, characterized in that: The grid unit size parameter acquisition module includes: The measuring unit is used to obtain the diagonal size of the long side and the diagonal size of the short side of the grid unit by measurement.

9. The device for determining the tensile and compressive modulus of a grid structure according to claim 7, characterized in that: The grid unit size parameter acquisition module includes: The calculation unit is used to calculate the diagonal size of the long side and the diagonal size of the short side of the grid unit by measuring the size of the grid structure and according to the number of grid units in the grid structure.

10. The device for determining the tensile and compressive modulus of a grid structure according to claim 7, characterized in that: The grid structure tensile and compressive modulus determination device also includes: The optimization module is used to optimize the grid structure according to the tensile and compressive moduli of the grid structure so that the grid structure can resist a set tensile force or compressive force.

11. The device for determining the tensile and compressive modulus of a grid structure according to claim 10, characterized in that: In the optimization module, optimizing the grid structure includes modifying the number of grid cells.

12. The device for determining the tensile and compressive modulus of a grid structure according to claim 10, characterized in that: In the optimization module, optimizing the grid structure includes modifying the shape of the grid cells.

13. A computer device, characterized in that: The method comprises a processor, a memory and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method for determining the tensile and compressive modulus of a grid structure as claimed in any one of claims 1 to 6.

14. A readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, it is used to implement the method for determining the tensile and compressive modulus of a grid structure as described in any one of claims 1 to 6.

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