1. A leaf spring strength analysis method is applied to a leaf spring strength analysis system and is characterized by comprising the following steps:

acquiring a preset plate spring model, and carrying out gridding processing on the plate spring model, wherein the plate spring model is a plate spring CAD model, and the plate spring model comprises a plurality of laminate reeds, and a front rolling lug and a rear rolling lug which are arranged at two ends of the longest plate spring piece;

if the number of the plate spring pieces is more than 1, carrying out self-contact setting on each plate spring piece;

carrying out constraint processing on the plate spring model;

acquiring six components of wheel center force according to a vehicle endurance road test, loading the six components into a finished vehicle multi-body dynamic model, and acquiring a load spectrum of a plate spring seat, wherein the load spectrum is a force which is applied to the plate spring model at the position of the plate spring seat and changes along with time, and the plate spring seat is positioned at the connecting part of the plate spring model and an axle;

presetting a plurality of working conditions, and processing and analyzing the load spectrum to obtain the strength load of the plate spring seat; the multiple working conditions comprise a turning working condition, an accelerating working condition, a braking working condition and a bouncing working condition;

and inputting the obtained strength load into a finite element model for checking to obtain a stress analysis result of the plate spring model.

2. The leaf spring strength analysis method according to claim 1, wherein the method of gridding the leaf spring model includes:

the setting size of the grid is 3-5mm, and the number of layers of the grid in the thickness direction of the plate spring leaf is more than 4.

3. The leaf spring strength analysis method according to claim 1, wherein the method of subjecting the leaf spring model to the constraint processing includes:

the central constraint point of the rigid unit at the front rolling lug restrains the degrees of freedom of 1, 2, 3, 4 and 6;

the central constraint point of the rigid unit at the rear eye is used for constraining the degrees of freedom of 2, 3, 4 and 6;

wherein 1, 2, 3, 4, 6 respectively represent the front rolling lug or the rear rolling lug to rotate along the X-axis direction, the Y-axis direction, the Z-axis direction, the X-axis rotating direction and the Z-axis rotating direction.

4. The leaf spring strength analysis method according to claim 1, wherein the step of providing each leaf spring piece with self-contact is preceded by:

and arranging a layer of shell unit on the outer surface of each plate spring, wherein the thickness of the shell unit is less than 0.01 mm.

5. The leaf spring strength analysis method according to claim 1, wherein the software for gridding the leaf spring model is an ABAQUS preprocessing module in Hypermesh or ANSA.

6. The leaf spring strength analysis method according to claim 1, wherein the six-component wheel center force includes an X-axis direction force FX received by the wheel center of the vehicle wheel, a Y-axis direction force FY received by the wheel center of the vehicle wheel, a Z-axis direction force FZ received by the wheel center of the vehicle wheel, an X-axis direction moment MX received by the wheel center of the vehicle wheel, a Y-axis direction moment MY received by the wheel center of the vehicle wheel, and a Z-axis direction moment MZ received by the wheel center of the vehicle wheel.

7. A leaf spring strength analysis system, comprising:

a gridding processing module: the leaf spring modeling method comprises the steps of obtaining a preset leaf spring model, and carrying out gridding processing on the leaf spring model; the plate spring model is a plate spring CAD model and comprises a plurality of layer plate spring pieces, and a front rolling lug and a rear rolling lug which are arranged at two ends of the longest plate spring piece;

a self-contacting setup module: the self-contact setting device is used for carrying out self-contact setting on each plate spring piece when the number of the plate spring pieces is more than 1;

a constraint processing module: the plate spring model is used for constraint processing;

a modeling module: the wheel center six-component force is loaded into a finished automobile multi-body dynamic model according to wheel center six-component force acquired by a vehicle endurance road test, a load spectrum of the plate spring model is acquired, the load spectrum is a force which is applied to the plate spring model at a plate spring seat position and changes along with time, and the plate spring seat is located at the connecting position of the plate spring model and an axle;

the working condition setting module: the device is used for setting various working conditions, wherein the various working conditions comprise a turning working condition, an accelerating working condition, a braking working condition and a bouncing working condition;

a calculation module: the load spectrum is processed and analyzed to obtain the strength load of the plate spring seat;

an analysis module: and the stress analysis device is used for inputting the obtained strength load into a finite element model for checking to obtain a stress analysis result of the plate spring model.

8. A readable storage medium on which a computer program is stored, characterized in that the program, when executed by a processor, implements the leaf spring strength analysis method according to any one of claims 1 to 7.

9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the leaf spring strength analysis method according to any one of claims 1 to 7 when executing the computer program.

Background

The automobile plate spring has the advantages of simple structure, low cost and convenient maintenance, and is widely applied to passenger cars, trucks and pickup trucks.

The strength calculation is carried out on the basis of a classical material mechanics beam bending theory in the traditional plate spring design, the method only solves the plate spring strength problem caused by vertical load FZ (plate spring vertical load) or DZ (plate spring vertical displacement), and the strength problem caused by other direction loads to the plate spring is not considered.

However, in the new energy automobile, since the electric drive device is mounted on the rear axle, the loads FX (X axial load), FY (Y axial load), MX (X axial torque) and MY (Y axial torque) that the plate spring receives at the plate spring seat are large, and the strength fracture of the plate spring is also easily caused.

Disclosure of Invention

The embodiment of the application provides a method and a system for analyzing the strength of a plate spring, a readable storage medium and computer equipment, and aims to at least solve the problem that the stress simulation analysis of the plate spring in all directions under the application environment of a new energy automobile cannot be comprehensively analyzed in the prior art.

In a first aspect, an embodiment of the present application provides a method for analyzing strength of a leaf spring, which specifically includes the following steps:

acquiring a preset plate spring model, and carrying out gridding processing on the plate spring model, wherein the plate spring model is a plate spring CAD model, and the plate spring model comprises a plurality of laminate reeds, and a front rolling lug and a rear rolling lug which are arranged at two ends of the longest plate spring piece;

if the number of the plate spring pieces is more than 1, carrying out self-contact setting on each plate spring piece;

carrying out constraint processing on the plate spring model;

acquiring six wheel center components according to a vehicle endurance road test, loading the six wheel center components into a vehicle multi-body dynamic model, and acquiring a load spectrum of the plate spring model, wherein the load spectrum is a force which is applied to the plate spring model at a plate spring seat position and changes along with time, and the plate spring seat is positioned at the connecting part of the plate spring model and an axle;

presetting a plurality of working conditions, and processing and analyzing the load spectrum to obtain the strength load of the plate spring seat; the multiple working conditions comprise a turning working condition, an accelerating working condition, a braking working condition and a bouncing working condition;

and inputting the obtained strength load into a finite element model for checking.

According to the leaf spring strength analysis method, the pre-input leaf spring model is subjected to gridding processing, so that when the stress of the leaf spring model is analyzed, the stress analysis of units in each grid area is more detailed, and the state condition of the leaf spring model on an automobile is simulated by carrying out constraint processing on the leaf spring model; the six wheel center components are collected through a vehicle endurance road test, loaded into a whole vehicle multi-body dynamic model to calculate a load spectrum of a plate spring model, the strength load of the plate spring model is simulated and calculated under various working conditions, the obtained strength load is input into a finite element model to be checked, and simulation analysis of the plate spring model is completed. According to the technical scheme provided by the invention, the stress condition of the plate spring in each direction is analyzed under various working conditions by simulating the plate spring, so that the simulation result is closer to the stress condition under the actual working condition, and the analysis on the strength of the plate spring is more accurate.

Preferably, the method of gridding the plate spring model includes:

the setting size of the grid is 3-5mm, and the number of layers of the grid in the thickness direction of the plate spring leaf is more than 4.

Preferably, the method for constraining the leaf spring model includes:

the central constraint point of the rigid unit at the front rolling lug restrains the degrees of freedom of 1, 2, 3, 4 and 6;

the central constraint point of the rigid unit at the rear eye is used for constraining the degrees of freedom of 2, 3, 4 and 6;

wherein 1, 2, 3, 4, 6 respectively represent the front rolling lug or the rear rolling lug to rotate along the X-axis direction, the Y-axis direction, the Z-axis direction, the X-axis rotating direction and the Z-axis rotating direction.

Preferably, the step of providing each of the leaf spring pieces with self-contact includes:

and arranging a layer of shell unit on the outer surface of each plate spring, wherein the thickness of the shell unit is less than 0.01 mm.

Preferably, the software for performing the gridding processing on the plate spring model is an ABAQUS preprocessing module in Hypermesh or ANSA.

Preferably, the six-component wheel center force includes an X-axis force FX received by the wheel center of the vehicle wheel, a Y-axis force FY received by the wheel center of the vehicle wheel, a Z-axis force FZ received by the wheel center of the vehicle wheel, an X-axis moment MX received by the wheel center of the vehicle wheel, a Y-axis moment MY received by the wheel center of the vehicle wheel, and a Z-axis moment MZ received by the wheel center of the vehicle wheel.

In a second aspect, an embodiment of the present application provides a leaf spring strength analysis system. The system comprises:

a gridding processing module: the leaf spring modeling method comprises the steps of obtaining a preset leaf spring model, and carrying out gridding processing on the leaf spring model; the plate spring model is a plate spring CAD model and comprises a plurality of laminate reeds, and a front rolling lug and a rear rolling lug which are arranged at two ends of the longest plate spring piece

A self-contacting setup module: the self-contact setting device is used for carrying out self-contact setting on each plate spring piece when the number of the plate spring pieces is more than 1;

a constraint processing module: the plate spring model is used for constraint processing;

a modeling module: the wheel center six-component force is loaded into a finished automobile multi-body dynamic model according to wheel center six-component force acquired by a vehicle endurance road test, a load spectrum of the plate spring model is acquired, the load spectrum is a force which is applied to the plate spring model at a plate spring seat position and changes along with time, and the plate spring seat is located at the connecting position of the plate spring model and an axle;

the working condition setting module: the device is used for setting various working conditions, wherein the various working conditions comprise a turning working condition, an accelerating working condition, a braking working condition and a bouncing working condition;

a calculation module: the load spectrum is processed and analyzed to obtain the strength load of the plate spring seat;

an analysis module: and inputting the acquired strength load into a finite element model for checking.

In a third aspect, the present application provides a readable storage medium, on which a computer program is stored, the program being executed by a processor to implement the leaf spring strength analysis method according to the first aspect.

In a fourth aspect, the present application provides a computer device, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor executes the computer program to implement the leaf spring strength analysis method according to the first aspect.

The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below to provide a more thorough understanding of the application.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a diagram of a method for analyzing the strength of a plate spring according to a first embodiment of the present invention;

FIG. 2 is a table of positive maxima and negative minima for each load direction FX, FY, DZ, MX, MY throughout the endurance cycle for a first embodiment of the invention;

FIG. 3 is a graph of a leaf spring model stress level analysis based on the parameters of FIG. 2 in a first embodiment of the present invention;

fig. 4 is a schematic structural diagram of a leaf spring strength analysis system according to a first embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments provided in the present application without any inventive step are within the scope of protection of the present application.

It is obvious that the drawings in the following description are only examples or embodiments of the present application, and that it is also possible for a person skilled in the art to apply the present application to other similar contexts on the basis of these drawings without inventive effort. Moreover, it should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of ordinary skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments without conflict.

Unless defined otherwise, technical or scientific terms referred to herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which this application belongs. Reference to "a," "an," "the," and similar words throughout this application are not to be construed as limiting in number, and may refer to the singular or the plural. The present application is directed to the use of the terms "including," "comprising," "having," and any variations thereof, which are intended to cover non-exclusive inclusions; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to the listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Reference to "connected," "coupled," and the like in this application is not intended to be limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The term "plurality" as referred to herein means two or more. "and/or" describes an association relationship of associated objects, meaning that three relationships may exist, for example, "A and/or B" may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. Reference herein to the terms "first," "second," "third," and the like, are merely to distinguish similar objects and do not denote a particular ordering for the objects.

The invention provides a method for analyzing the strength of a plate spring. Fig. 1 is a flowchart of a leaf spring strength analysis method according to an embodiment of the present application, and as shown in fig. 1, the flowchart includes the steps of:

and step S10, acquiring a preset plate spring model, and carrying out gridding processing on the plate spring model.

In the embodiment of the invention, the plate spring model is a plate spring CAD model, and the plate spring model comprises a plurality of layer plate spring pieces, and a front rolling lug and a rear rolling lug which are arranged at two ends of the longest plate spring piece. It can be understood that the plate spring model adopted by the invention is the CAD model, and the CAD modeling has high universality, low drawing difficulty and good applicability. However, the file attributes of the leaf spring model are not specifically limited in the present application, and in other embodiments of the present invention, the leaf spring model may also be in the format of other three-dimensional digital-to-analog files, so as to adapt to the software to be subjected to model meshing processing.

In addition, in the embodiment of the present invention, the clamping sections between the different plate reeds are combined by using a common node for grid modeling, and the bottom of the clamping area is rigidized by using a rigid unit to form a loading point. The partial areas of the front and rear eye of the leaf spring need to locally stiffen the eye for applying restraint.

In step S20, if the number of leaf spring pieces is greater than 1, the leaf spring pieces are set in self-contact with each other.

It can be understood that, since most of the leaf springs are formed by stacking a plurality of leaf spring sheets with sequentially increasing lengths, self-contact definition setting needs to be performed on each leaf spring sheet during modeling. If the self-defined contact setting is not carried out, the stress deformation of the plate spring is the phenomenon that adjacent plate spring pieces can be mutually invaded (namely, the models are partially overlapped) during stress analysis, so that the final result of the strength analysis of the plate spring does not have the referential property. Therefore, when the plate spring model has only one plate spring piece, the plate spring model is in an integrated state and does not need to be set in self-contact, but when the plate spring model has a plurality of plate spring pieces, self-contact setting is needed.

In step S30, the leaf spring model is subjected to constraint processing.

In the specific process of the plate spring constraint processing, the degrees of freedom of 1, 2, 3, 4 and 6 of the rigid unit center constraint point at the front rolling lug are required to be constrained, and the degrees of freedom of 2, 3, 4 and 6 of the rigid unit center constraint point at the rear rolling lug are required to be constrained. Specifically, 1, 2, 3, 4 and 6 respectively represent the direction of the front rolling lug or the rear rolling lug along the X axis, the Y axis, the Z axis, the direction of rotation around the X axis and the direction of rotation around the Z axis.

The invention achieves the purpose of simulating the state of the plate spring on the automobile by constraining the plate spring model, wherein the front eye of the plate spring can rotate, so the central constraint point of the front eye constrains 1, 2, 3, 4 and 6 degrees of freedom, and the rear eye can move along the length direction of the plate spring and can rotate around the axis direction of the eye, so the central constraint point of the rear eye constrains 2, 3, 4 and 6 degrees of freedom.

And step S40, acquiring wheel center six-component force according to a vehicle endurance road test, loading the wheel center six-component force into a whole vehicle multi-body dynamic model, and acquiring a load spectrum of the plate spring seat.

The multi-body dynamics calculation plate spring seat load spectrum is obtained by applying six components of wheel center to the wheel center of the multi-body dynamics model. The load spectrum is the time-varying force that the plate spring model receives at the position of the plate spring seat, and the plate spring seat is positioned at the connecting part of the plate spring and the axle. According to the technical scheme provided by the invention, data of six force components of a wheel center are acquired according to a vehicle endurance road test and loaded to the wheel center in a complete vehicle multi-body dynamic model, specifically, the six force components of the wheel center comprise force FX in an X-axis direction, force FY in a Y-axis direction, force FZ in a Z-axis direction, moment MX in the X-axis direction, moment MY in the Y-axis direction and moment MZ in the Z-axis direction, which are received by the wheel center of a vehicle wheel; .

And step S50, presetting a plurality of working conditions, and processing and analyzing the load spectrum to obtain the strength load of the plate spring seat.

The multiple working conditions comprise a turning working condition, an accelerating working condition, a braking working condition and a bouncing working condition. It can be understood that the strength of the plate spring under different use working conditions is analyzed more comprehensively, and the plate spring is correspondingly arranged under various condition working conditions to achieve the purpose of multi-angle analysis. The working conditions of the plate spring, which are subjected to a large load in the use process, are turning, accelerating, braking and jumping up and down. The working conditions according to the conventional definition of the leaf spring strength of the invention are as follows: setting a braking working condition of 1g, a turning working condition of 1g, defining the turning braking working condition as 0.74/0.74g, vertically jumping up by 3.5g, then building a multi-body dynamics model of the whole vehicle based on multi-body dynamics software, calculating the strength load of a spring seat under the working condition, and using the load value for inputting a finite element model for strength checking. The setting of the above various working conditions is based on the conventional setting of those skilled in the art, and the present invention does not specifically limit the parameter size of the above working conditions, and only uses the above setting parameters as a preferred embodiment.

And step S60, inputting the obtained strength load into the finite element model for checking to obtain a stress analysis result of the plate spring model.

According to the technical scheme adopted by the invention, in order to avoid over-design caused by the working condition set according to experience, the strength load calculation flow at the leaf spring model is as follows:

the vehicle collects a road load spectrum, namely a wheel center six-component force (force changing along with time), applies the wheel center six-component force to the wheel center of a whole vehicle multi-body dynamic model, calculates the load time history of the force of a leaf spring in six directions at a leaf spring seat, outputs a displacement load DZ to the Z direction embodiment, and when the load data is derived in an Excel form, processes Excel data to obtain the maximum value and the minimum value (maximum absolute value) of the positive direction in the whole endurance process and the extreme value of a certain direction in each of the FX, FY, DZ, MX and MY load directions, loads corresponding to the same moment in other directions, the results are shown in FIG. 2, wherein case1 and case2 are extreme condition loads caused by examining the vertical bouncing load of the leaf spring, case11 is the allowable Z-direction maximum displacement of the leaf spring design, case3, 4, 9, 10 are used for studying extreme strength conditions caused by braking and acceleration, case5, 6, 7, 8 examines the ultimate strength problem caused by the turning condition. And finally, respectively applying the loads in the figure 2 to the finite element model plate spring seat to obtain 11 finite element models, and submitting and solving the 11 models.

This application is through the technical scheme who gathers road spectrum calculation intensity load, compares in prior art directly based on the mode of experience operating mode calculation load, more comprehensive simulation the atress condition of vehicle leaf spring for at leaf spring intensity analysis's in-process, the intensity load that acquires is more accurate.

Referring to fig. 3, the calculated stress results of the leaf spring according to the load of case3 in fig. 2 applied to the finite element model are shown. The stress level of the plate spring, under the case1-10 working condition of the plate spring model, the stress needs to be less than 70% of the yield stress of the plate spring material, and under the case11 working condition, the stress is less than the yield stress of the plate spring material.

In summary, the leaf spring strength analysis method provided by the invention performs the gridding processing on the leaf spring model input in advance, so that the unit stress analysis in each grid area is more detailed when the stress of the leaf spring model is analyzed, and the state condition of the leaf spring model on the automobile is simulated by performing the constraint processing on the leaf spring model; the six wheel center components are collected through a vehicle endurance road test, loaded into a whole vehicle multi-body dynamic model to calculate a load spectrum of a plate spring seat position, the strength load of the spring model is simulated and calculated under various working conditions, the obtained strength load is input into a finite element model to be checked, and simulation analysis of the plate spring model is completed. According to the technical scheme provided by the invention, the stress condition of the plate spring in each direction is analyzed under various working conditions by simulating the plate spring, so that the simulation result is closer to the stress condition under the actual working condition, and the analysis on the strength of the plate spring is more accurate.

Further, as the simulation result in fig. 3 is more detailed and accurate, in the embodiment of the present invention, the setting size of the gridding process for the plate spring model is 4mm, and the number of layers of the grid in the thickness direction of the plate spring is 5. The setting size is only a better setting scheme, and in other technical schemes of the invention, the setting size of the grid is 3-5mm, and the number of layers of the grid in the thickness direction of the plate spring sheet is more than 4.

Further, in order to improve the accuracy of solving the yield stress, the outer surface of each plate spring piece in the embodiment of the present invention is further provided with a layer of shell unit to simulate an actual anti-rust layer coated on the outer surface of the plate spring piece, specifically, in the embodiment of the present invention, the thickness of the shell unit is set to be 0.001mm, and it can be understood that, in other embodiments of the present invention, the shell unit may be any value smaller than 0.01 mm.

The embodiment also provides a leaf spring strength analysis system, which is used for implementing the above embodiments and preferred embodiments, and the description of the system is omitted. As used hereinafter, the terms "module," "unit," "subunit," and the like may implement a combination of software and/or hardware for a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

Fig. 4 is a schematic structural view of a leaf spring strength analysis system according to an embodiment of the present application, and as shown in fig. 4, the system includes:

the gridding processing module 10: the leaf spring modeling method comprises the steps of obtaining a preset leaf spring model, and carrying out gridding processing on the leaf spring model; the plate spring model is a plate spring CAD model and comprises a plurality of laminate reeds, and a front rolling lug and a rear rolling lug which are arranged at two ends of the longest plate spring piece

Self-contact setting module 20: the self-contact setting device is used for carrying out self-contact setting on each plate spring piece when the number of the plate spring pieces is more than 1;

the constraint processing module 30: the plate spring model is used for constraint processing;

a modeling module: the wheel center six-component force is loaded into a finished automobile multi-body dynamic model according to wheel center six-component force acquired by a vehicle endurance road test, a load spectrum of the plate spring model is acquired, the load spectrum is a force which is applied to the plate spring model at a plate spring seat position and changes along with time, and the plate spring seat is located at the connecting position of the plate spring model and an axle;

the working condition setting module 40: the device is used for setting various working conditions, wherein the various working conditions comprise a turning working condition, an accelerating working condition, a braking working condition and a bouncing working condition;

the calculation module 50: processing and analyzing the load spectrum to obtain the strength load of the plate spring seat;

the analysis module 60: and inputting the obtained strength load into a finite element model for checking to obtain a stress analysis result of the plate spring model.

The above modules may be functional modules or program modules, and may be implemented by software or hardware. For a module implemented by hardware, the modules may be located in the same processor; or the modules can be respectively positioned in different processors in any combination.

In addition, in combination with the leaf spring strength analysis method in the above embodiments, the embodiments of the present application may be implemented by providing a readable storage medium. The readable storage medium having stored thereon computer program instructions; the computer program instructions, when executed by a processor, implement any of the leaf spring strength analysis methods in the above embodiments.

In addition, the leaf spring strength analysis method described in the embodiment of the present application with reference to fig. 1 may be implemented by a computer device. The computer device may include a processor and a memory storing computer program instructions.

In particular, the processor may include a Central Processing Unit (CPU), or A Specific Integrated Circuit (ASIC), or may be configured to implement one or more Integrated circuits of the embodiments of the present Application.

The memory may include, among other things, mass storage for data or instructions. By way of example, and not limitation, memory may include a Hard Disk Drive (Hard Disk Drive, abbreviated to HDD), a floppy Disk Drive, a Solid State Drive (SSD), flash memory, an optical Disk, a magneto-optical Disk, tape, or a Universal Serial Bus (USB) Drive or a combination of two or more of these. The memory may include removable or non-removable (or fixed) media, where appropriate. The memory may be internal or external to the data processing apparatus, where appropriate. In a particular embodiment, the memory is a Non-Volatile (Non-Volatile) memory. In particular embodiments, the Memory includes Read-Only Memory (ROM) and Random Access Memory (RAM). The ROM may be mask-programmed ROM, Programmable ROM (PROM), Erasable PROM (EPROM), Electrically Erasable PROM (EEPROM), Electrically rewritable ROM (EAROM), or FLASH Memory (FLASH), or a combination of two or more of these, where appropriate. The RAM may be a Static Random-Access Memory (SRAM) or a Dynamic Random-Access Memory (DRAM), where the DRAM may be a Fast Page Mode Dynamic Random-Access Memory (FPMDRAM), an Extended data output Dynamic Random-Access Memory (EDODRAM), a Synchronous Dynamic Random-Access Memory (SDRAM), and the like.

The memory may be used to store or cache various data files for processing and/or communication use, as well as possibly computer program instructions for execution by the processor.

The processor reads and executes the computer program instructions stored in the memory to implement any one of the leaf spring strength analysis methods in the above embodiments.

In some of these embodiments, the computer device may also include a communication interface and a bus. The processor 81, the memory, and the communication interface are connected via a bus to complete communication with each other.

The communication interface is used for realizing communication among modules, devices, units and/or equipment in the embodiment of the application. The communication interface may also be implemented with other components such as: the data communication is carried out among external equipment, image/data acquisition equipment, a database, external storage, an image/data processing workstation and the like.

A bus comprises hardware, software, or both that couple components of a computer device to one another. Buses include, but are not limited to, at least one of the following: data Bus (Data Bus), Address Bus (Address Bus), Control Bus (Control Bus), Expansion Bus (Expansion Bus), and Local Bus (Local Bus). By way of example, and not limitation, a Bus may include an Accelerated Graphics Port (AGP) or other Graphics Bus, an Enhanced Industry Standard Architecture (EISA) Bus, a Front-Side Bus (FSB), a Hyper Transport (HT) Interconnect, an ISA (ISA) Bus, an InfiniBand (InfiniBand) Interconnect, a Low Pin Count (LPC) Bus, a memory Bus, a microchannel Architecture (MCA) Bus, a PCI-Express (PCI-X) Bus, a Serial Advanced Technology Attachment (SATA) Bus, abbreviated VLB) bus or other suitable bus or a combination of two or more of these. Bus 80 may include one or more buses, where appropriate. Although specific buses are described and shown in the embodiments of the application, any suitable buses or interconnects are contemplated by the application.

The computer device may execute the leaf spring strength analysis method in the embodiment of the present application based on the acquired data parameters, thereby implementing the leaf spring strength analysis method described in conjunction with fig. 1.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.