Rigidity optimization analysis method and device for floating brake calipers

Abstract

The invention discloses a floating brake caliper rigidity optimization analysis method and device, and the method comprises the steps: building a brake caliper optimization analysis finite element model; determining a rigidity optimization analysis load and a boundary condition; defining an optimization analysis physical model; optimizing and analyzing the rigidity of the calipers; geometric reconstruction is carried out according to an optimization analysis result, an optimization structure finite element model is established based on geometric reconstruction, optimization structure rigidity simulation is carried out, and an optimized caliper rigidity calculation result is obtained; the invention aims to provide a floating brake caliper rigidity optimization analysis method, which aims to improve the rigidity of the caliper to the greatest extent and reduce the material use in a given brake caliper design space, and calculates the topological optimization structure of the brake caliper, thereby improving the performance of a whole brake system.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle simulation, and in particular to a method and a device for optimizing and analyzing the stiffness of a floating brake caliper. Background Art

[0002] As an important part of the braking system, the stiffness of the brake caliper has a significant impact on the sensitivity, response speed and braking efficiency of the braking system.

[0003] By optimizing the caliper stiffness, the deformation and deflection of the brake caliper during braking can be reduced, ensuring that the brake pad is in even contact with the brake disc. At the same time, the brake system can respond quickly in emergency situations, improve the reliability and stability of the brake system, and reduce the braking distance.

[0004] Traditionally, the optimization of brake caliper stiffness is done through simulation trial and error or testing. Once the stiffness does not meet the design requirements, changes will cost a lot of time and manpower, and it is impossible to achieve the optimal performance and weight indicators. Therefore, optimization analysis is an important means to check whether the brake caliper stiffness meets the design requirements while achieving weight reduction, providing effective support for the forward design of the brake caliper. Summary of the invention

[0005] The object of the present invention is to provide a method and device for optimizing and analyzing the stiffness of a floating brake caliper, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a method for optimizing and analyzing the stiffness of a floating brake caliper, comprising:

[0007] Establish a finite element model for brake caliper optimization analysis;

[0008] Determine loads and boundary conditions for stiffness optimization analysis;

[0009] Defining an optimization analysis physical model, wherein the physical model is a physical model including response parameters, optimization constraints, optimization objectives and optimization settings;

[0010] Caliper stiffness optimization analysis;

[0011] The geometric reconstruction is performed according to the optimization analysis results, and the optimized structural finite element model is established based on the geometric reconstruction. The optimized structural stiffness simulation is performed to obtain the optimized caliper stiffness calculation results.

[0012] Furthermore, a finite element model for brake caliper optimization analysis is established, which also includes:

[0013] Define the material properties of the brake caliper, clean up the geometry of the brake caliper assembly model, and use second-order tetrahedron elements to model the brake caliper structure model.

[0014] Furthermore, the loads and boundary conditions for the stiffness optimization analysis are determined, including:

[0015] Define the design space and non-design space for stiffness optimization analysis, where the non-design space includes the bolt connection part of the brake caliper, the piston chamber and the top of the claw, and the rest of the position is the design space;

[0016] In the vehicle coordinate system, a uniform load in the y direction is applied to the inner surface of the brake caliper piston chamber;

[0017] Constrain the clamping point to have 2, 4, and 6 degrees of freedom;

[0018] Constrain the caliper connection points in 1, 3, 4, and 6 directions of freedom.

[0019] Furthermore, the response parameters, optimization constraints and optimization objectives also include:

[0020] The response parameters include the weighted strain energy, the percentage of the designable part volume to the original volume, the reaction force at the fixed point, the total deformation of the caliper in the y direction, and the ratio function of the reaction force in the y direction of the fixed point;

[0021] The optimization objective is set to minimize the weighted strain energy, and the ratio function of the design space volume percentage to the original volume, the total deformation of the caliper in the y direction, and the support reaction force in the y direction of the fixed point is set according to the design requirements.

[0022] Further, the optimization settings include:

[0023] Define design space and non-design space solid properties;

[0024] The one-way demoulding direction and symmetry surface normal of the brake caliper are set according to the casting process, and the maximum number of iteration steps, penalty coefficient, chessboard control and minimum member size are set.

[0025] Furthermore, the caliper stiffness optimization analysis also includes:

[0026] Calculate and obtain the unit density results of the brake caliper stiffness optimization analysis;

[0027] Lightweight design optimization is performed through the functional relationship between unit density results and material elastic modulus.

[0028] Furthermore, geometric reconstruction is performed according to the optimization analysis results, and an optimized structural finite element model is established based on the geometric reconstruction, and the structural stiffness simulation is optimized to obtain the optimized caliper stiffness calculation results, which also includes:

[0029] Re-mesh the geometrically reconstructed structure and set loads and boundary conditions;

[0030] The total deformation is determined based on the calculation results to obtain the optimized caliper weight.

[0031] On the other hand, a floating brake caliper stiffness optimization and analysis device is provided, comprising:

[0032] The first building block is used to establish a finite element model for brake caliper optimization analysis;

[0033] Load and boundary setting module, used to determine the load and boundary conditions for stiffness optimization analysis;

[0034] Setting an optimization analysis physical model module, which is used to define an optimization analysis physical model, wherein the physical model is a physical model including response parameters, optimization constraints, optimization objectives and optimization settings;

[0035] Analysis module for caliper stiffness optimization analysis;

[0036] Reconstruction module, used to perform geometric reconstruction based on optimization analysis results;

[0037] The second building module builds an optimized structural finite element model based on geometric reconstruction;

[0038] The processing module is used to optimize the structural stiffness simulation and obtain the optimized caliper stiffness calculation result.

[0039] In another aspect, an electronic device is provided, the electronic device comprising:

[0040] one or more processors;

[0041] a storage device for storing one or more programs,

[0042] When the one or more programs are executed by the one or more processors, the one or more processors implement a floating brake caliper stiffness optimization analysis method as described in any one of the above items.

[0043] On the other hand, a computer-readable storage medium is provided, on which a computer program is stored, characterized in that when the program is executed by a processor, a floating brake caliper stiffness optimization analysis method as described in any one of the above items is implemented.

[0044] Compared with the prior art, the beneficial effects of the present invention are as follows: the purpose of the present invention is to propose a floating brake caliper stiffness optimization analysis method, which is to maximize the stiffness of the caliper within a given brake caliper design space while reducing material usage as the goal, calculate the brake caliper topology optimization structure, thereby improving the performance of the entire braking system. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a flow chart of a method for optimizing and analyzing the stiffness of a floating brake caliper in an embodiment of the present invention;

[0046] Figure 2 Schematic diagram of axial deformation of a brake caliper in an embodiment of the present invention;

[0047] Figure 3 Schematic diagram of a brake caliper stiffness optimization analysis model in an embodiment of the present invention;

[0048] Figure 4 A schematic diagram of optimized analysis loads and boundary conditions in an embodiment of the present invention;

[0049] Figure 5 A schematic diagram of a physical model for optimization analysis is defined in an embodiment of the present invention;

[0050] Figure 6 This is a schematic diagram of the density of the stiffness optimization analysis unit in an embodiment of the present invention;

[0051] Figure 7 A schematic diagram of a reconstruction process in an embodiment of the present invention;

[0052] Figure 8 It is a schematic diagram of a finite element analysis model of an optimized structure in an embodiment of the present invention;

[0053] Fig. 9 It is a schematic diagram of the calculation result of the axial deformation of the caliper with optimized structure in an embodiment of the present invention;

[0054] Fig.10 It is a schematic block diagram of a floating brake caliper stiffness optimization and analysis device according to an embodiment of the present invention;

[0055] Fig.11 A schematic diagram of the connection structure of an electronic device and a computer-readable storage medium in an embodiment of the present invention;

[0056] In the figure: 10, memory; 11, processor; 12, communication bus; 13, communication interface; 14, computer program; 15, storage medium; 16, first building module; 17, load and boundary setting module; 18, setting optimization analysis physical model module; 19, analysis module; 20, reconstruction module; 21, second building module; 22, processing module. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0058] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0059] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] Please refer to the attached drawings of the specification, the present invention provides a technical solution: Figure 1 As shown, a floating brake caliper stiffness optimization analysis method comprises the following steps:

[0061] S102, establishing a finite element model for brake caliper optimization analysis;

[0062] Before establishing the finite element model for brake caliper optimization analysis, it is necessary to define the brake caliper stiffness optimization analysis working condition. In this embodiment, the preferred brake caliper stiffness optimization analysis working condition is to calculate the total axial deformation of the brake caliper under the pressure of 7 MPa in the piston cylinder; the total deformation is the absolute value of the difference between deformation A and deformation B, such as Figure 2 As shown, the brake caliper includes a brake caliper 23, a brake disc 24, a friction pad and a back plate 25.

[0063] Specifically, establishing a finite element model for brake caliper optimization analysis also includes:

[0064] Define the material properties of the brake caliper, clean up the geometry of the brake caliper assembly model, and use second-order tetrahedron elements to model the brake caliper structure model.

[0065] Among them, the brake caliper material properties are defined as shown in Table 1;

[0066] Table 1 Brake caliper material properties

[0067]

[0068] The brake caliper assembly model is geometrically cleaned. The brake assembly includes brake calipers, pistons, friction pads, brake discs and other parts. In order to improve the analysis efficiency, the brake caliper stiffness optimization analysis only considers the brake caliper model; a brake caliper optimization analysis finite element model is established. The brake caliper structural model should be the largest envelope within the brake caliper design space. Second-order tetrahedron units are used for modeling, and the mesh size is 2mm.

[0069] S104, determining stiffness optimization analysis loads and boundary conditions;

[0070] Specifically, determine the loads and boundary conditions for the stiffness optimization analysis, including:

[0071] Define the design space and non-design space for stiffness optimization analysis, where the non-design space includes the bolt connection part of the brake caliper, the piston chamber and the top of the claw, and the rest of the position is the design space;

[0072] In the vehicle coordinate system, a uniform load in the y direction is applied to the inner surface of the brake caliper piston chamber;

[0073] Constrain the clamping point to have 2, 4, and 6 degrees of freedom;

[0074] Constrain the caliper connection points in 1, 3, 4, and 6 directions of freedom.

[0075] Among them, the stiffness optimization analysis design space 26 and non-design space 27 are defined. The design space is the area that needs topology optimization, that is, the design variable, and the non-design space is the area where the structure remains unchanged during the topology optimization process. The brake caliper bolt connection part, the piston chamber and the top of the claw are defined as non-design space, and the rest of the positions are design space, such as Figure 3 As shown, it also includes a motion coupling unit 28; define the stiffness optimization analysis load and boundary conditions, use Optistruct software, Figure 4 In the coordinate system shown, a 7Mpa uniformly distributed load in the y direction is applied to the inner surface of the brake caliper piston chamber, the degrees of freedom of the claw fixing points in the 2, 4, and 6 directions are constrained, the degrees of freedom of the caliper connection points in the 1, 3, 4, and 6 directions are constrained, and the axial deformation of the caliper is monitored; Figure 4 In the figure, a is the degree of freedom in the directions of 2, 4, and 6 of the constrained claw fixing points; b is the degree of freedom in the directions of 1, 3, 4, and 6 of the constrained caliper connection points; c is the axial deformation of the monitored caliper; and d is the uniformly distributed load applied to the surface.

[0076] S106, defining an optimization analysis physical model, wherein the physical model is a physical model including response parameters, optimization constraints, optimization objectives, and optimization settings;

[0077] Specifically, the response parameters, optimization constraints and optimization objectives also include:

[0078] The response parameters include the weighted strain energy, the percentage of the designable part volume to the original volume, the reaction force at the fixed point, the total deformation of the caliper in the y direction, and the ratio function of the reaction force in the y direction of the fixed point;

[0079] The optimization objective is set to minimize the weighted strain energy, and the ratio function of the design space volume percentage to the original volume, the total deformation of the caliper in the y direction, and the support reaction force in the y direction of the fixed point is set according to the design requirements.

[0080] Among them, response parameters: the optimization is defined as weighted strain energy Weighted comp, the percentage of the designable part volume to the original volume volumefrac, the fixed point reaction force spc force, the total deformation static displacement of the caliper in the y direction and the ratio function function of the support reaction force in the y direction of the fixed point; optimization constraints: the optimization constraints are defined as the volume percentage volumefrac is less than 40%, the total deformation static displacement of the caliper in the y direction is less than 0.2mm, the ratio function function is greater than 0.8 and less than 1.2, to ensure that the forces on the three claws are evenly distributed; optimization target: the optimization target is defined as minimizing the weighted strain energy Weighted comp, that is, maximizing the structural stiffness.

[0081] Specifically, the optimization settings include:

[0082] Define design space and non-design space solid properties;

[0083] The one-way demoulding direction and symmetry surface normal of the brake caliper are set according to the casting process, and the maximum number of iteration steps, penalty coefficient, chessboard control and minimum member size are set.

[0084] Among them, the optimization settings are: define the PSOLID properties of the design space and non-design space solids, and set the one-way demoulding direction and symmetry surface normal of the brake caliper according to the casting process, such as Figure 5 As shown, the maximum number of iteration steps DESMAX = 30, the penalty coefficient DISCRETE = 1, the chessboard control CHECKER = 1, and the minimum member size MINDIM = 6 are set. The above settings can control the chessboard phenomenon and eliminate half-density units, which is more conducive to production; Figure 5 middle, Figure 5 .1 e is the demoulding direction, Figure 5 .2 where f is the normal to the symmetry plane.

[0085] S108, Caliper stiffness optimization analysis;

[0086] Specifically, the caliper stiffness optimization analysis also includes:

[0087] Calculate and obtain the unit density results of the brake caliper stiffness optimization analysis;

[0088] Lightweight design optimization is performed through the functional relationship between unit density results and material elastic modulus.

[0089] Among them, the Optistruct topology optimization analysis solver is used to solve the problem and obtain the brake caliper stiffness optimization analysis unit density result, see Figure 6 ; Element density has a functional relationship with the elastic modulus of the material and takes continuous values ​​between 0 and 1; after the optimization solution, if the element density is 1 (or close to 1), it means that the material at the unit position is very important and needs to be retained; if the element density is 0 (or close to 0), it means that the material at the unit is not important and can be removed; according to the optimization settings, the brake caliper stiffness optimization analysis only retains the elements with an element density greater than 0.4, so as to achieve efficient material utilization and lightweight design; and export the optimization results as Opti.fem files.

[0090] S110, performing geometric reconstruction according to the optimization analysis results, and establishing an optimized structural finite element model based on the geometric reconstruction, optimizing the structural stiffness simulation, and obtaining an optimized caliper stiffness calculation result.

[0091] Specifically, geometric reconstruction is performed according to the optimization analysis results, and an optimized structural finite element model is established based on the geometric reconstruction, and the structural stiffness simulation is optimized to obtain the optimized caliper stiffness calculation results, which also includes:

[0092] Re-mesh the geometrically reconstructed structure and set loads and boundary conditions;

[0093] The total deformation is determined based on the calculation results to obtain the optimized caliper weight.

[0094] Among them, the optimization result geometry reconstruction: using Altair Inspire software, read the Opti.fem file, and then use the PolyNURBS Fit function to geometrically reconstruct the optimization result. The number of NURBS surfaces is 2500, and the curvature is 60%. After local refinement, the Opti.stp geometry file is obtained; the reconstruction process is as follows Figure 7 .1-7.3;

[0095] Furthermore, an optimized structural finite element model is established: the geometrically reconstructed Opti.stp structure is re-meshed, the mesh size is 2 mm, the unit adopts the second-order tetrahedron C3D10M unit type, and the load and boundary conditions are the same as the stiffness optimization analysis step S104; the optimized structural finite element model is as follows Figure 8 As shown;

[0096] Furthermore, the structural stiffness simulation is optimized: the ABAQUS solver is used to simulate the stiffness of the optimization results, and the calculated results of the optimized caliper stiffness are deformation A of 0.03mm, deformation B of 0.2mm, and total deformation of 0.17mm, which meets the goal of total deformation less than 0.2mm; the schematic diagram of the axial deformation of the optimized structural caliper is shown in Fig. 9 As shown, the optimized caliper weighs only 3.37kg, compared with the original structure of 5.1kg, a weight reduction of 34%.

[0097] On the other hand, Fig.10 As shown, a floating brake caliper stiffness optimization and analysis device is provided, comprising:

[0098] A first building module 16 is used to establish a finite element model for brake caliper optimization analysis;

[0099] Among them, the brake caliper stiffness optimization analysis working conditions are defined, the brake caliper material properties are defined, the brake caliper assembly model is geometrically cleaned, and the brake caliper structure model is modeled using second-order tetrahedron elements;

[0100] A load and boundary setting module 17, used to determine the load and boundary conditions for the stiffness optimization analysis;

[0101] The stiffness optimization analysis design space and non-design space are defined, wherein the non-design space includes the brake caliper bolt connection part, the piston chamber and the top of the claw, and the rest of the position is the design space;

[0102] In the vehicle coordinate system, a uniform load in the y direction is applied to the inner surface of the brake caliper piston chamber;

[0103] Constrain the clamping point to have 2, 4, and 6 degrees of freedom;

[0104] Constrain the caliper connection points in 1, 3, 4, and 6 directions of freedom.

[0105] Setting an optimization analysis physical model module 18, which is used to define an optimization analysis physical model, wherein the physical model is a physical model including response parameters, optimization constraints, optimization objectives and optimization settings;

[0106] Among them, the response parameters include weighted strain energy, the percentage of the designable part volume to the original volume, the reaction force at the fixed point, the total deformation of the caliper in the y direction, and the ratio function of the support reaction force in the y direction of the fixed point; the optimization goal is set to minimize the weighted strain energy, and the ratio function of the design space volume to the original volume, the total deformation of the caliper in the y direction, and the support reaction force in the y direction of the fixed point is set according to the design requirements; the solid properties of the design space and non-design space are defined; the one-way demolding direction and the normal direction of the symmetry plane of the brake caliper are set according to the casting process, and the maximum number of iteration steps, penalty coefficient, chessboard control and minimum member size are set.

[0107] Analysis module 19, used for caliper stiffness optimization analysis;

[0108] Among them, the unit density results of the brake caliper stiffness optimization analysis are calculated; lightweight design optimization is performed through the functional relationship between the unit density results and the material elastic modulus;

[0109] A reconstruction module 20, used for performing geometric reconstruction according to the optimization analysis result;

[0110] The second construction module 21 establishes an optimized structural finite element model based on geometric reconstruction;

[0111] Among them, the geometrically reconstructed structure is re-meshed, and the loads and boundary conditions are set;

[0112] The processing module 22 is used to optimize the structural stiffness simulation and obtain the optimized caliper stiffness calculation result;

[0113] The optimization result is subjected to stiffness simulation to obtain the optimized caliper stiffness calculation result, so that the total deformation is smaller than a preset target, and the optimized caliper weight is smaller than a preset weight.

[0114] On the other hand, Fig.11 As shown, an electronic device is provided, the electronic device comprising:

[0115] One or more processors 11;

[0116] a storage device for storing one or more programs,

[0117] When the one or more programs are executed by the one or more processors 11, the one or more processors 11 implement any one of the above-mentioned methods for optimizing the stiffness of a floating brake caliper.

[0118] Specifically, the storage device is a memory 10, a processor (CPU) 11 and a computer program 14, the computer program 14 is stored in the memory 10, and the processor 11 executes the computer program 14 to implement any one of the above floating brake caliper stiffness optimization analysis methods. The control system also includes: a communication interface 13 and a communication bus 12, the processor 11, the communication interface 13, and the memory 10 communicate through the communication bus 12, wherein the communication bus 12 is an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, etc., and if the memory 10, the processor 11 and the communication interface 13 are integrated on a chip, the memory 10, the processor 11 and the communication interface 13 can communicate with each other through an internal interface.

[0119] The processor 11 may also be a specific integrated circuit or multiple integrated circuits.

[0120] On the other hand, Fig.11 As shown, a computer-readable storage medium 15 is provided, on which a computer program 14 is stored. When the program is executed by a processor 11, a floating brake caliper stiffness optimization analysis method as described above is implemented.

[0121] Specifically, the computer program 14 may include a program code, which includes a computer operation instruction; a memory 10, which is used to store the computer program 14. The memory 10 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory; a communication interface 13, which is used to communicate with other devices such as a client or other servers.

[0122] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for optimizing and analyzing the stiffness of a floating brake caliper, characterized in that: include: Establish a finite element model for brake caliper optimization analysis; Determine loads and boundary conditions for stiffness optimization analysis; Defining an optimization analysis physical model, wherein the physical model is a physical model including response parameters, optimization constraints, optimization objectives and optimization settings; Caliper stiffness optimization analysis; The geometric reconstruction is performed according to the optimization analysis results, and the optimized structural finite element model is established based on the geometric reconstruction. The optimized structural stiffness simulation is performed to obtain the optimized caliper stiffness calculation results.

2. The method for optimizing and analyzing the stiffness of a floating brake caliper according to claim 1, characterized in that: Establishing a finite element model for brake caliper optimization analysis also includes: Define the material properties of the brake caliper, clean up the geometry of the brake caliper assembly model, and use second-order tetrahedron elements to model the brake caliper structure model.

3. The method for optimizing and analyzing the stiffness of a floating brake caliper according to claim 1, characterized in that: Determine the loads and boundary conditions for the stiffness optimization analysis, including: Define the design space and non-design space for stiffness optimization analysis, where the non-design space includes the bolt connection part of the brake caliper, the piston chamber and the top of the claw, and the rest of the position is the design space; In the vehicle coordinate system, a uniform load in the y direction is applied to the inner surface of the brake caliper piston chamber; Constrain the clamping point to have 2, 4, and 6 degrees of freedom; Constrain the caliper connection points in 1, 3, 4, and 6 directions of freedom.

4. The method for optimizing and analyzing the stiffness of a floating brake caliper according to claim 3, characterized in that: Response parameters, optimization constraints and optimization objectives, including: The response parameters include the weighted strain energy, the percentage of the designable part volume to the original volume, the reaction force at the fixed point, the total deformation of the caliper in the y direction, and the ratio function of the reaction force in the y direction of the fixed point; The optimization objective is set to minimize the weighted strain energy, and the ratio function of the design space volume percentage to the original volume, the total deformation of the caliper in the y direction, and the support reaction force in the y direction of the fixed point is set according to the design requirements.

5. The method for optimizing and analyzing the stiffness of a floating brake caliper according to claim 4, characterized in that: Optimization settings include: Define design space and non-design space solid properties; The one-way demoulding direction and symmetry surface normal of the brake caliper are set according to the casting process, and the maximum number of iteration steps, penalty coefficient, chessboard control and minimum member size are set.

6. The method for optimizing and analyzing the stiffness of a floating brake caliper according to claim 1, characterized in that: Caliper stiffness optimization analysis also includes: Calculate and obtain the unit density results of the brake caliper stiffness optimization analysis; Lightweight design optimization is performed through the functional relationship between unit density results and material elastic modulus.

7. The method for optimizing and analyzing the stiffness of a floating brake caliper according to claim 1, characterized in that: According to the optimization analysis results, the geometry is reconstructed, and based on the geometry reconstruction, the optimized structure finite element model is established, the structure stiffness simulation is optimized, and the optimized caliper stiffness calculation results are obtained, which also includes: Re-mesh the geometrically reconstructed structure and set loads and boundary conditions; The total deformation is determined based on the calculation results to obtain the optimized caliper weight.

8. A floating brake caliper stiffness optimization and analysis device, characterized in that: Also includes: The first building block is used to establish a finite element model for brake caliper optimization analysis; Load and boundary setting module, used to determine the load and boundary conditions for stiffness optimization analysis; Setting an optimization analysis physical model module, which is used to define an optimization analysis physical model, wherein the physical model is a physical model including response parameters, optimization constraints, optimization objectives and optimization settings; Analysis module for caliper stiffness optimization analysis; Reconstruction module, used to perform geometric reconstruction based on optimization analysis results; The second building module builds an optimized structural finite element model based on geometric reconstruction; The processing module is used to optimize the structural stiffness simulation and obtain the optimized caliper stiffness calculation result.

9. An electronic device, characterized in that: The electronic device comprises: one or more processors; a storage device for storing one or more programs, When the one or more programs are executed by the one or more processors, the one or more processors implement a floating brake caliper stiffness optimization analysis method as described in any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, a floating brake caliper stiffness optimization analysis method as claimed in any one of claims 1 to 7 is implemented.

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