Method, device and equipment for determining cae performance of suspension structure and storage medium

Abstract

The application relates to the technical field of vehicles and discloses a CAE performance determination method, device and equipment of a suspension structure and a storage medium, the method comprising the following steps: acquiring working condition parameters of a vehicle containing a suspension structure; setting a static stress-stiffness analysis working condition and a collision analysis working condition according to the working condition parameters of the vehicle containing the suspension structure; analyzing the suspension structure according to the static stress-stiffness analysis working condition through a target CAE analysis model to obtain static stress-stiffness performance; and analyzing the suspension structure according to the collision analysis working condition through the target CAE analysis model to obtain collision performance. In the foregoing manner, the static stress-stiffness analysis working condition and the collision analysis working condition are set according to the working condition parameters, and then the suspension structure is analyzed according to the static stress-stiffness analysis working condition and the collision analysis working condition through the target CAE analysis model, so that the accuracy of analyzing the static stress-stiffness performance and the collision performance can be effectively improved, and the development cycle and cost can be reduced.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a method, apparatus, equipment, and storage medium for determining the CAE performance of suspension structures. Background Technology

[0002] As an integral part of a vehicle, the CAE performance of the suspension structure directly impacts vehicle safety and driver comfort. This CAE performance includes, but is not limited to, static stress-stiffness performance and crash performance. Therefore, accurately determining the CAE performance of the suspension structure is of paramount importance. Currently, the CAE performance of the suspension structure is determined based on reliability tests, bench tests, and crash tests conducted on already cracked suspension structures. However, already cracked suspension structures do not cover all operating conditions, resulting in lower accuracy of the final analysis of static stress-stiffness performance and crash performance.

[0003] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is prior art. Summary of the Invention

[0004] The main objective of this invention is to provide a method, apparatus, device, and storage medium for determining the CAE performance of suspended structures, aiming to solve the technical problem of low accuracy in the analysis of static stress-stiffness performance and collision performance in the prior art.

[0005] To achieve the above objectives, the present invention provides a method for determining the CAE performance of a suspension structure, the method comprising the following steps:

[0006] Obtain the operating parameters of vehicles with suspension structures;

[0007] Based on the operating parameters of the vehicle containing the suspension structure, set the corresponding static stress-stiffness analysis conditions and collision analysis conditions;

[0008] The suspended structure is analyzed using the target CAE analysis model based on the static stress-stiffness analysis conditions to obtain the static stress-stiffness performance.

[0009] The target CAE analysis model is used to analyze the suspension structure according to the collision analysis conditions to obtain the collision performance.

[0010] Optionally, setting corresponding static stress-stiffness analysis conditions and collision analysis conditions based on the operating parameters of the vehicle containing the suspension structure includes:

[0011] The driving condition parameters and collision condition parameters are obtained based on the operating condition parameters of the vehicle containing the suspension structure.

[0012] Set the corresponding static stress-stiffness analysis conditions according to the driving condition parameters;

[0013] Set the corresponding collision analysis conditions according to the collision condition parameters.

[0014] Optionally, setting the corresponding static stress-stiffness analysis conditions based on the driving condition parameters includes:

[0015] The first constraint and sheet metal installation position are determined based on the driving condition parameters;

[0016] Based on the first constraint and the sheet metal installation position, set the loading position, shock absorber pressure loading position and loading force corresponding to each driving condition;

[0017] Set the driving yield stiffness requirements and driving deformation strength requirements according to the driving condition parameters;

[0018] Static stress-stiffness analysis conditions are generated based on the loading position, shock absorber pressure loading position, loading force, driving yield stiffness requirements, and driving deformation strength requirements corresponding to each driving condition.

[0019] Optionally, setting the corresponding collision analysis conditions according to the collision condition parameters includes:

[0020] A number of collision condition types are determined based on the collision condition parameters;

[0021] The collision reaction force at the suspension hinge position is obtained based on the aforementioned number of collision types;

[0022] The second constraint and sheet metal mounting position are determined based on the collision condition parameters.

[0023] The collision analysis conditions are set according to the collision reaction force at the suspension hinge position and the second constraint, and the corresponding collision analysis conditions are set with respect to the sheet metal mounting position.

[0024] Optionally, the step of setting corresponding collision analysis conditions based on the collision reaction force at the suspension hinge position and the second constraint and the sheet metal mounting position includes:

[0025] Based on the collision reaction force between the second constraint, the sheet metal mounting position, and the suspension hinge position, set the loading position, shock absorber pressure loading position, and loading force corresponding to each collision condition;

[0026] Set the collision deformation strength requirements according to the collision condition parameters;

[0027] The collision analysis conditions are generated based on the loading position, shock absorber pressure loading position, loading force, and collision deformation strength requirements corresponding to each collision condition.

[0028] Optionally, before analyzing the suspended structure using the target CAE analysis model according to the static stress-stiffness analysis conditions to obtain the static stress-stiffness performance, the method further includes:

[0029] Obtain historical static stress condition data, historical stiffness condition data, historical static stress performance, and historical stiffness performance of the suspension structure;

[0030] Based on the historical static stress condition data and historical static stress performance, a historical static stress condition-stiffness performance group is obtained.

[0031] Obtain historical collision data and historical collision performance of the suspension structure;

[0032] Based on the historical collision condition data and historical collision performance, a historical collision condition-collision performance group is obtained.

[0033] The target CAE analysis model is obtained by training the historical static stress condition-stiffness performance group and the historical collision condition-collision performance group based on the target 3D digital model using the Hypermesh algorithm.

[0034] Optionally, after analyzing the suspension structure using the target CAE analysis model according to the collision analysis conditions to obtain the collision performance, the method further includes:

[0035] To obtain the actual crash performance and actual static stress-stiffness performance of vehicles with suspension structures;

[0036] When the actual static stress-stiffness performance is inconsistent with the static stress-stiffness performance and the actual collision performance is inconsistent with the collision performance, a first performance difference between the actual static stress-stiffness performance and the static stress-stiffness performance is calculated.

[0037] Calculate the second performance difference between the actual collision performance and the said collision performance;

[0038] When both the first performance difference and the second performance difference are less than a preset performance difference threshold, vehicle model development is carried out through the suspension structure.

[0039] Furthermore, to achieve the above objectives, the present invention also proposes a CAE performance determination device for a suspended structure, the CAE performance determination device for the suspended structure comprising:

[0040] The acquisition module is used to acquire the operating parameters of vehicles with suspension structures;

[0041] The setting module is used to set the corresponding static stress-stiffness analysis conditions and collision analysis conditions according to the operating parameters of the vehicle containing the suspension structure.

[0042] The analysis module is used to analyze the suspended structure according to the static stress-stiffness analysis conditions using the target CAE analysis model to obtain the static stress-stiffness performance.

[0043] The analysis module is also used to analyze the suspension structure according to the collision analysis conditions using the target CAE analysis model to obtain the collision performance.

[0044] Furthermore, to achieve the above objectives, the present invention also proposes a CAE performance determination device for a suspended structure, the CAE performance determination device for a suspended structure comprising: a memory, a processor, and a CAE performance determination program for a suspended structure stored in the memory and executable on the processor, the CAE performance determination program for a suspended structure being configured to implement the CAE performance determination method for a suspended structure as described above.

[0045] Furthermore, to achieve the above objectives, the present invention also proposes a storage medium storing a CAE performance determination program for a suspended structure, wherein the CAE performance determination program for the suspended structure is executed by a processor to implement the CAE performance determination method for the suspended structure as described above.

[0046] The CAE performance determination method for suspension structures proposed in this invention involves: acquiring the operating parameters of a vehicle containing a suspension structure; setting corresponding static stress-stiffness analysis conditions and collision analysis conditions based on these parameters; analyzing the suspension structure using a target CAE analysis model under the static stress-stiffness analysis conditions to obtain static stress-stiffness performance; and analyzing the suspension structure using the target CAE analysis model under the collision analysis conditions to obtain collision performance. By setting static stress-stiffness analysis conditions and collision analysis conditions based on the operating parameters, and then analyzing the suspension structure using a target CAE analysis model under these conditions, the accuracy of static stress-stiffness performance and collision performance analysis can be effectively improved, while reducing development cycle and cost. Attached Figure Description

[0047] Figure 1 This is a schematic diagram of the CAE performance determination device with a suspended structure in the hardware operating environment involved in the embodiments of the present invention;

[0048] Figure 2 This is a flowchart illustrating the first embodiment of the CAE performance determination method for the suspension structure of the present invention.

[0049] Figure 3 This is a flowchart illustrating the second embodiment of the CAE performance determination method for the suspension structure of the present invention.

[0050] Figure 4 This is a schematic diagram of the static stress-stiffness analysis condition of an embodiment of the CAE performance determination method for the suspension structure of the present invention.

[0051] Figure 5 This is a schematic diagram of the collision analysis conditions of an embodiment of the CAE performance determination method for the suspension structure of the present invention;

[0052] Figure 6 This is a functional module diagram of the first embodiment of the CAE performance determination device for the suspension structure of the present invention.

[0053] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0054] It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0055] Reference Figure 1 , Figure 1 This is a schematic diagram of the CAE performance determination device structure of the suspended structure of the hardware operating environment involved in the embodiments of the present invention.

[0056] like Figure 1 As shown, the CAE performance determination device with this suspended structure may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to enable communication between these components. The user interface 1003 may include a display screen or an input unit such as a keyboard; optionally, the user interface 1003 may also include a standard wired interface or a wireless interface. The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a Wireless-Fidelity (Wi-Fi) interface). The memory 1005 may be a high-speed random access memory (RAM) or a stable non-volatile memory (NVM), such as a disk drive. The memory 1005 may also optionally be a storage device independent of the aforementioned processor 1001.

[0057] Those skilled in the art will understand that Figure 1 The structure shown does not constitute a limitation on the CAE performance determination device for the suspension structure, and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0058] like Figure 1 As shown, the memory 1005, which serves as a storage medium, may include an operating system, a network communication module, a user interface module, and a CAE performance determination program with a suspended structure.

[0059] exist Figure 1 In the suspended structure CAE performance determination device shown, the network interface 1004 is mainly used for data communication with the network integrated platform workstation; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and memory 1005 in the suspended structure CAE performance determination device of the present invention can be set in the suspended structure CAE performance determination device, and the suspended structure CAE performance determination device calls the suspended structure CAE performance determination program stored in the memory 1005 through the processor 1001 and executes the suspended structure CAE performance determination method provided in the embodiment of the present invention.

[0060] Based on the above hardware structure, an embodiment of the CAE performance determination method for the suspension structure of the present invention is proposed.

[0061] Reference Figure 2 , Figure 2 This is a flowchart illustrating the first embodiment of the CAE performance determination method for the suspension structure of the present invention.

[0062] In the first embodiment, the CAE performance determination method for the suspension structure includes the following steps:

[0063] Step S10: Obtain the operating parameters of the vehicle containing the suspension structure.

[0064] It should be noted that the execution subject in this embodiment is a suspended CAE performance determination device, but it can also be other devices that can achieve the same or similar functions, such as a CAE performance controller. This embodiment does not limit this, and in this embodiment, a CAE performance controller is used as an example for explanation.

[0065] It should be understood that operating parameters refer to the parameters of a vehicle with a suspension structure under various operating conditions, including but not limited to driving conditions and collision conditions. The suspension structure refers to the suspension and damping structure inside the vehicle, which is located in the driver's cab. The semi-floating cab suspension method uses rubber fixed support for the front suspension and springs as damping elements for the rear suspension. The fully floating suspension method includes springs and shock absorbers (or air springs built into the shock absorbers) for the front suspension and springs and shock absorbers (or air springs built into the shock absorbers) for the rear suspension.

[0066] Step S20: Set the corresponding static stress-stiffness analysis conditions and collision analysis conditions according to the operating parameters of the vehicle containing the suspension structure.

[0067] It is understandable that the static stress-stiffness analysis condition refers to the analysis condition used to determine the static stress-stiffness performance of the suspension structure, while the collision analysis condition refers to the analysis condition used to determine the collision performance of the suspension structure. Both the static stress-stiffness analysis condition and the collision analysis condition are set using the vehicle's operating parameters.

[0068] Step S30: The suspended structure is analyzed using the target CAE analysis model according to the static stress-stiffness analysis conditions to obtain the static stress-stiffness performance.

[0069] It should be understood that the target CAE analysis model refers to the model used to analyze the CAE performance of the suspended structure. The CAE performance of the suspended structure includes, but is not limited to, static stress-stiffness performance and collision performance. After obtaining the static stress-stiffness analysis conditions, the suspended structure is analyzed using the target CAE analysis model based on the static stress-stiffness analysis conditions to obtain the static stress-stiffness performance.

[0070] Further, before step S30, the method includes: acquiring historical static stress condition data, historical stiffness condition data, historical static stress performance, and historical stiffness performance of the suspended structure; obtaining a historical static stress condition-stiffness performance group based on the historical static stress condition data and historical static stress performance; acquiring historical collision condition data and historical collision performance of the suspended structure; obtaining a historical collision condition-collision performance group based on the historical collision condition data and historical collision performance; and training the historical static stress condition-stiffness performance group and the historical collision condition-collision performance group using the Hypermesh algorithm based on the target 3D digital model to obtain the target CAE analysis model.

[0071] Understandably, after obtaining the historical static stress condition data, historical stiffness condition data, historical static stress performance, and historical stiffness performance of the suspended structure, the historical static stress condition data and historical static stress performance are grouped into one group, namely the historical static stress condition-stiffness performance group, and the historical collision condition data and historical collision performance are grouped into another group, namely the historical collision condition-collision performance group. Then, the historical static stress condition-stiffness performance group and the historical collision condition-collision performance group are used as training data. The Hypermesh algorithm is then used to train the target CAE analysis model based on the target 3D digital model using the training data. At this point, the target CAE analysis model can be used for the analysis of static stress-stiffness performance and collision performance.

[0072] Step S40: The suspension structure is analyzed according to the collision analysis conditions using the target CAE analysis model to obtain the collision performance.

[0073] Understandably, after obtaining the collision analysis conditions, the target CAE analysis model analyzes the collision performance of the suspension structure based on the collision analysis conditions. The better the collision performance, the greater the impact force that the vehicle can withstand when a collision occurs.

[0074] Furthermore, after step S40, the method further includes: obtaining the actual collision performance and actual static stress-stiffness performance of the vehicle containing the suspension structure; when the actual static stress-stiffness performance is inconsistent with the static stress-stiffness performance and the actual collision performance is inconsistent with the collision performance, calculating a first performance difference between the actual static stress-stiffness performance and the static stress-stiffness performance; calculating a second performance difference between the actual collision performance and the collision performance; and when both the first performance difference and the second performance difference are less than a preset performance difference threshold, developing a vehicle model using the suspension structure.

[0075] It should be understood that actual crash performance refers to the crash performance of a vehicle with a suspension structure during a real-vehicle test, and actual static stress-stiffness performance refers to the static stress-stiffness performance of a vehicle with a suspension structure during a real-vehicle test. Then, the actual static stress-stiffness performance is compared with the static stress-stiffness performance, and the actual crash performance is compared with the crash performance. If the comparison results show inconsistencies between the actual static stress-stiffness performance and the static stress-stiffness performance, and also inconsistencies between the actual crash performance and the crash performance, then the first performance difference between the actual static stress-stiffness performance and the static stress-stiffness performance, as well as the difference between the actual crash performance and the crash performance, are further assessed. If the second performance difference between the crash performances is less than the preset performance difference threshold, it indicates that the actual static stress-stiffness performance and the actual crash performance are both within the specified error range. At this time, the 3D model is frozen, and the static stress-stiffness performance and crash performance provide a theoretical basis for the product structure design in the subsequent vehicle development process, thereby shortening the development cycle and reducing the development and crash test costs. If not, the first performance difference and the second performance difference are needed to determine the model improvement opinions, and the 3D model is improved through the model improvement opinions, and the target CAE analysis model is iteratively updated.

[0076] This embodiment obtains the operating parameters of a vehicle with a suspension structure; sets corresponding static stress-stiffness analysis conditions and collision analysis conditions based on these parameters; analyzes the suspension structure using a target CAE analysis model based on the static stress-stiffness analysis conditions to obtain static stress-stiffness performance; and analyzes the suspension structure using the target CAE analysis model based on the collision analysis conditions to obtain collision performance. By setting static stress-stiffness analysis conditions and collision analysis conditions based on the operating parameters, and then analyzing the suspension structure using a target CAE analysis model based on these conditions, the accuracy of static stress-stiffness performance and collision performance analysis can be effectively improved, while reducing development cycle and cost.

[0077] In one embodiment, such as Figure 3 The second embodiment of the CAE performance determination method for the suspension structure of the present invention, based on the first embodiment, includes step S20, which includes:

[0078] Step S201: Obtain driving condition parameters and collision condition parameters based on the operating condition parameters of the vehicle containing the suspension structure.

[0079] It should be understood that driving condition parameters refer to the operating conditions of a vehicle with a suspension structure during driving. These driving condition parameters can be the X, Y, and Z acceleration parameters encountered by the vehicle during driving. Collision condition parameters refer to the operating conditions of a vehicle with a suspension structure when a collision occurs. After obtaining the operating condition parameters of a vehicle with a suspension structure, the operating condition parameters of a vehicle with a suspension structure are divided into driving condition parameters and collision condition parameters.

[0080] Step S202: Set the corresponding static stress-stiffness analysis conditions according to the driving condition parameters.

[0081] Further, step S202 includes: determining the first constraint and sheet metal installation position based on the driving condition parameters; setting the loading position, shock absorber pressure loading position, and loading force corresponding to each driving condition based on the first constraint and sheet metal installation position; setting the driving yield stiffness requirement and driving deformation strength requirement based on the driving condition parameters; and generating static stress-stiffness analysis conditions based on the loading position, shock absorber pressure loading position, loading force, driving yield stiffness requirement, and driving deformation strength requirement corresponding to each driving condition.

[0082] It should be understood that the first constraint and sheet metal mounting position refer to the constraints and sheet metal mounting position under driving conditions. After obtaining the driving condition parameters, the loading position, shock absorber pressure loading position, and loading force are set for each driving condition. For example, in the forward driving condition, the loading position loads 1 / 4 of the cab weight in the negative Z direction and 1 / 4 of the cab weight in the negative X direction, with a shock absorber pressure of 450N. In the braking condition, the loading position loads 1 / 4 of the cab weight in the negative Z direction and 1 / 4 of the cab weight in the X direction, with a shock absorber pressure of 450N. During cornering, the loading position applies 1 / 4 of the cab weight in the negative Z direction and 1 / 4 of the cab weight in the Y direction, with a shock absorber pressure of 450N. During pothole crossing, the loading position applies 3 / 4 of the cab weight in the negative Z direction, with a shock absorber pressure of 1800N. Simultaneously, driving yield stiffness and driving deformation strength requirements are set. For example, the driving yield stiffness requirement is a safety factor greater than 2, which is greater than that of mass-produced mature models. The driving deformation strength requirement is that the deformation of the parts under stress is less than 2mm, which is less than that of mass-produced mature models.

[0083] Understandably, reference Figure 4 , Figure 4 This is a schematic diagram of the static stress-stiffness analysis working condition, specifically showing the position of the shock absorber pressure loading, the position of the loading force, and the position of the first constraint and sheet metal installation. Under driving conditions, the force is applied from bottom to top, with the loading force applied below and the constraint on the connection part with the sheet metal above.

[0084] Step S203: Set the corresponding collision analysis conditions according to the collision condition parameters.

[0085] Further, step S203 includes: determining a number of collision condition types based on the collision condition parameters; obtaining the collision reaction force at the suspension hinge position based on the number of collision types; determining the second constraint and sheet metal mounting position based on the collision condition parameters; and setting corresponding collision analysis conditions based on the collision reaction force at the suspension hinge position and the second constraint and sheet metal mounting position.

[0086] It is understood that the collision conditions include, but are not limited to, frontal collision conditions, A-pillar collision conditions, top collision conditions, and rear collision conditions. The collision reaction force refers to the reaction force when the hinge at the suspension hinge point collides. The second constraint and sheet metal mounting position refer to the constraint and sheet metal mounting position of the collision condition.

[0087] Furthermore, the step of setting corresponding collision analysis conditions based on the collision reaction force at the suspension hinge position and the second constraint and sheet metal mounting position includes: setting the loading position, shock absorber pressure loading position, and loading force corresponding to each collision condition based on the collision reaction force at the second constraint, sheet metal mounting position, and suspension hinge position; setting collision deformation strength requirements based on collision condition parameters; and generating collision analysis conditions based on the loading position, shock absorber pressure loading position, loading force, and collision deformation strength requirements corresponding to each collision condition.

[0088] It should be understood that after obtaining the collision reaction forces at the second constraint, sheet metal mounting position, and suspension hinge position, the loading position, shock absorber pressure loading position, and loading force corresponding to each collision condition are set. For example, in the frontal collision condition, the loading point applies a frontal collision force of 50,000 N in the X direction and 1 / 4 of the cab weight in the negative Z direction, with a shock absorber pressure of 450 N. In the A-pillar collision condition, the loading point applies an A-pillar collision force of 27,000 N at a 45-degree angle in the X direction and 1 / 4 of the cab weight in the negative Z direction, with a shock absorber pressure of 450 N. In the first top-pressure condition... The shock absorber and loading point are evenly loaded with a top pressure of 25,000 N. When the loading point is loaded, the negative Z-axis load is 1 / 4 of the cab weight, and the shock absorber pressure is 450 N. In the second top pressure condition, the loading point is at a 45-degree angle to the Z-axis and is loaded with 20,000 N, the negative Z-axis load is 1 / 4 of the cab weight, and the shock absorber pressure is 450 N. In the rear impact condition, the loading point is loaded with a rear impact force of 10,000 N in the negative X-axis, the negative Z-axis load is 1 / 4 of the cab weight, and the shock absorber pressure is 450 N. At the same time, collision deformation strength requirements are set, for example, the safety factor is greater than 1.3.

[0089] Understandably, reference Figure 5 , Figure 5 The diagram shows the collision analysis conditions, specifically: the position of the shock absorber pressure loading, with the loading force direction along the normal direction of the shock absorber; the second constraint and the sheet metal mounting point; the loading force position; the X-direction of the frontal collision condition; the negative X-direction of the rear collision condition; the A-pillar collision at a 45° angle to the X-direction; and the second type of top-pressure condition at a 45° angle to the Z-axis.

[0090] This embodiment obtains driving condition parameters and collision condition parameters based on the operating condition parameters of the vehicle containing the suspension structure; sets corresponding static stress-stiffness analysis conditions based on the driving condition parameters; and sets corresponding collision analysis conditions based on the collision condition parameters. Through this method, after obtaining the operating condition parameters of the vehicle containing the suspension structure, the operating condition parameters are divided into driving condition parameters and collision condition parameters. Then, static stress-stiffness analysis conditions are set based on the driving condition parameters, and collision analysis conditions are set based on the collision condition parameters, thereby effectively improving the accuracy of setting each operating condition.

[0091] Furthermore, this embodiment of the invention also proposes a storage medium storing a CAE performance determination program for a suspended structure. When the CAE performance determination program for a suspended structure is executed by a processor, it implements the steps of the CAE performance determination method for a suspended structure as described above.

[0092] Since this storage medium adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0093] In addition, refer to Figure 6 This invention also proposes a CAE performance determination device for a suspended structure, the CAE performance determination device for the suspended structure comprising:

[0094] The acquisition module 10 is used to acquire the operating parameters of a vehicle with a suspension structure.

[0095] The setting module 20 is used to set corresponding static stress-stiffness analysis conditions and collision analysis conditions according to the operating parameters of the vehicle containing the suspension structure.

[0096] Analysis module 30 is used to analyze the suspended structure according to the static stress-stiffness analysis conditions using the target CAE analysis model to obtain the static stress-stiffness performance.

[0097] The analysis module 30 is also used to analyze the suspension structure according to the collision analysis conditions using the target CAE analysis model to obtain the collision performance.

[0098] This embodiment obtains the operating parameters of a vehicle with a suspension structure; sets corresponding static stress-stiffness analysis conditions and collision analysis conditions based on these parameters; analyzes the suspension structure using a target CAE analysis model based on the static stress-stiffness analysis conditions to obtain static stress-stiffness performance; and analyzes the suspension structure using the target CAE analysis model based on the collision analysis conditions to obtain collision performance. By setting static stress-stiffness analysis conditions and collision analysis conditions based on the operating parameters, and then analyzing the suspension structure using a target CAE analysis model based on these conditions, the accuracy of static stress-stiffness performance and collision performance analysis can be effectively improved, while reducing development cycle and cost.

[0099] It should be noted that the workflow described above is merely illustrative and does not limit the scope of protection of this invention. In practical applications, those skilled in the art can select some or all of the workflow to achieve the purpose of this embodiment according to actual needs, and no restrictions are imposed here.

[0100] In addition, for technical details not described in detail in this embodiment, please refer to the CAE performance determination method of the suspension structure provided in any embodiment of the present invention, which will not be repeated here.

[0101] Other embodiments or implementation methods of the CAE performance determination device for the suspension structure described in this invention can be referred to the above-described method embodiments, and will not be repeated here.

[0102] Furthermore, it should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0103] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0104] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as read-only memory (ROM) / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, all-in-one platform workstation, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0105] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A method for determining the CAE performance of a suspended structure, characterized in that, The method for determining the CAE performance of the suspension structure includes the following steps: Obtain the operating parameters of vehicles with suspension structures; Based on the operating parameters of the vehicle containing the suspension structure, set the corresponding static stress-stiffness analysis conditions and collision analysis conditions; The suspended structure is analyzed by the target CAE analysis model according to the static stress-stiffness analysis conditions to obtain the static stress-stiffness performance. The target CAE analysis model is obtained by training the target 3D digital model on the historical static stress-stiffness performance group and the historical collision performance group based on the Hypermesh algorithm. The target CAE analysis model is used to analyze the suspension structure according to the collision analysis conditions to obtain the collision performance.

2. The CAE performance determination method for the suspension structure as described in claim 1, characterized in that, The step of setting corresponding static stress-stiffness analysis conditions and collision analysis conditions based on the operating parameters of the vehicle containing the suspension structure includes: The driving condition parameters and collision condition parameters are obtained based on the operating condition parameters of the vehicle containing the suspension structure. Set the corresponding static stress-stiffness analysis conditions according to the driving condition parameters; Set the corresponding collision analysis conditions according to the collision condition parameters.

3. The CAE performance determination method for the suspension structure as described in claim 2, characterized in that, The step of setting corresponding static stress-stiffness analysis conditions based on the driving condition parameters includes: The first constraint and the sheet metal installation position are determined based on the driving condition parameters. The first constraint refers to the constraint of the driving condition. Based on the first constraint and the sheet metal installation position, set the loading position, shock absorber pressure loading position and loading force corresponding to each driving condition; Set the driving yield stiffness requirements and driving deformation strength requirements according to the driving condition parameters; Static stress-stiffness analysis conditions are generated based on the loading position, shock absorber pressure loading position, loading force, driving yield stiffness requirements, and driving deformation strength requirements corresponding to each driving condition.

4. The CAE performance determination method for the suspension structure as described in claim 2, characterized in that, The step of setting corresponding collision analysis conditions based on the collision condition parameters includes: A number of collision condition types are determined based on the collision condition parameters; The collision reaction force at the suspension hinge position is obtained based on the aforementioned number of collision types; The second constraint and sheet metal installation position are determined based on the collision condition parameters. The second constraint refers to the constraint of the collision condition. The collision analysis conditions are set according to the collision reaction force at the suspension hinge position and the second constraint, and the corresponding collision analysis conditions are set with respect to the sheet metal mounting position.

5. The CAE performance determination method for the suspension structure as described in claim 4, characterized in that, The collision analysis conditions set according to the collision reaction force at the suspension hinge position and the second constraint corresponding to the sheet metal mounting position include: Based on the collision reaction force between the second constraint, the sheet metal mounting position, and the suspension hinge position, set the loading position, shock absorber pressure loading position, and loading force corresponding to each collision condition; Set the collision deformation strength requirements according to the collision condition parameters; The collision analysis conditions are generated based on the loading position, shock absorber pressure loading position, loading force, and collision deformation strength requirements corresponding to each collision condition.

6. The CAE performance determination method for a suspended structure as described in claim 1, characterized in that, Before analyzing the suspended structure using the target CAE analysis model according to the static stress-stiffness analysis conditions to obtain the static stress-stiffness performance, the method further includes: Obtain historical static stress condition data, historical stiffness condition data, historical static stress performance, and historical stiffness performance of the suspension structure; Based on the historical static stress condition data and historical static stress performance, a historical static stress condition-stiffness performance group is obtained. Obtain historical collision data and historical collision performance of the suspension structure; Based on the historical collision condition data and historical collision performance, a historical collision condition-collision performance group is obtained. The target CAE analysis model is obtained by training the historical static stress condition-stiffness performance group and the historical collision condition-collision performance group based on the target 3D digital model using the Hypermesh algorithm.

7. The CAE performance determination method for a suspension structure as described in claim 1, characterized in that, After analyzing the suspended structure using the target CAE analysis model according to the collision analysis conditions to obtain the collision performance, the method further includes: To obtain the actual crash performance and actual static stress-stiffness performance of vehicles with suspension structures; When the actual static stress-stiffness performance is inconsistent with the static stress-stiffness performance and the actual collision performance is inconsistent with the collision performance, a first performance difference between the actual static stress-stiffness performance and the static stress-stiffness performance is calculated. Calculate the second performance difference between the actual collision performance and the said collision performance; When both the first performance difference and the second performance difference are less than a preset performance difference threshold, vehicle model development is carried out through the suspension structure.

8. A CAE performance determination device for a suspended structure, characterized in that, The CAE performance determination device for the suspension structure includes: The acquisition module is used to acquire the operating parameters of vehicles with suspension structures; The setting module is used to set the corresponding static stress-stiffness analysis conditions and collision analysis conditions according to the operating parameters of the vehicle containing the suspension structure. The analysis module is used to analyze the suspended structure according to the static stress-stiffness analysis conditions using the target CAE analysis model to obtain the static stress-stiffness performance. The target CAE analysis model is trained by the Hypermesh algorithm based on the target 3D digital model using historical static stress-stiffness performance groups and historical collision performance groups. The analysis module is also used to analyze the suspension structure according to the collision analysis conditions using the target CAE analysis model to obtain the collision performance.

9. A CAE performance determination device with a suspended structure, characterized in that, The CAE performance determination device for the suspended structure includes: a memory, a processor, and a CAE performance determination program for the suspended structure stored in the memory and executable on the processor. The CAE performance determination program for the suspended structure is configured to implement the CAE performance determination method for the suspended structure as described in any one of claims 1 to 7.

10. A storage medium, characterized in that, The storage medium stores a CAE performance determination program for a suspended structure, which, when executed by a processor, implements the CAE performance determination method for a suspended structure as described in any one of claims 1 to 7.

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