Drive axle simulation software interaction method, drive axle and vehicle

Abstract

The application relates to the technical field of drive axle simulation, in particular to a drive axle simulation software interaction method, a drive axle and a vehicle. An interaction main interface of drive axle simulation software is divided into multiple target interaction areas, and each area is linked to a corresponding sub-interface. The method comprises the following steps: identifying a first interaction operation of the main interface and a second interaction operation of the sub-interface; in response to the first interaction operation, determining a target interaction area according to the operation position and jumping to the corresponding sub-interface; and in response to the second interaction operation, executing a target guiding operation according to the operation position, and automatically completing drive axle model import, parameter setting and simulation solving export. The main interface is provided with a first, a second and a third interaction area. Model import and parameter acquisition can be completed by operating the second area, and simulation can be started and analysis can be automatically completed by operating the third area. The problems of drive axle simulation depending on the experience of engineers and the complicated operation steps in the related art are solved.

Description

Technical Field

[0001] This application relates to the field of drive axle simulation technology, and in particular to a drive axle simulation software interaction method, a drive axle, and a vehicle. Background Technology

[0002] Simulation analysis of the drive axle is a crucial step in evaluating the structural performance of the drive axle. However, current technologies lack simulation modeling methods and tools specifically for drive axles, and there is no standardized process. Simulation modeling relies on manual experience for configuration, which makes it difficult to guarantee model consistency and modeling efficiency, thus affecting the reliability of simulation analysis. Summary of the Invention

[0003] This application provides a drive axle simulation software interaction method, a drive axle, and a vehicle to solve the problems of drive axle simulation relying on engineer experience and cumbersome operation steps in related technologies.

[0004] The first aspect of this application provides a method for interacting with drive bridge simulation software. The main interface of the drive bridge simulation software is divided into a target interaction area, which is linked to a target interaction sub-interface. The method includes the following steps: identifying a first interaction operation on the main interface and a second interaction operation on the target interaction sub-interface; responding to the first interaction operation, identifying a first interaction position of the first interaction operation on the main interface, determining the target interaction area to be operated based on the first interaction position, and jumping to the target interaction sub-interface based on the link address corresponding to the target interaction area; responding to the second interaction operation, identifying a second interaction position of the second interaction operation on the target interaction sub-interface, executing a target guidance operation based on the second interaction position, and automatically executing a simulation guidance operation for the drive bridge through the target guidance operation. The simulation guidance operation includes importing the drive bridge model, exporting the solution of the drive bridge model, and setting the parameters of the drive bridge model.

[0005] Based on the aforementioned technical means, this application embodiment standardizes the drive bridge simulation process into a complete chain of interface interaction, model import, parameter setting, and simulation solution export through a layered interactive design of an interactive main interface and multiple interactive sub-interfaces. Visual operation replaces complex manual configuration, effectively simplifying the drive bridge simulation operation process, reducing manual intervention, and significantly improving modeling and simulation efficiency. Simultaneously, it solidifies unified operating procedures, avoiding model inconsistencies caused by experience differences, ensuring the reliability and repeatability of simulation results, and reducing reliance on the professional experience of operators. This provides an efficient and standardized solution for drive bridge structural performance evaluation.

[0006] Optionally, the target interactive area is at least one of a first interactive area, a second interactive area, and a third interactive area. The target interactive sub-interface includes at least one of a first interactive sub-interface, a second interactive sub-interface, and a third interactive sub-interface. The first interactive area is linked to the first interactive sub-interface, the second interactive area is linked to the second interactive sub-interface, and the third interactive area is linked to the third interactive sub-interface. The first interactive sub-interface is provided with a first input box, an import button, and a first close button. The first input box is used to perform a first fill operation, the import button is used to perform an import operation of the drive axle model, and the first close button is used to perform a first close operation of the first interactive sub-interface. The second interactive sub-interface displays at least one second input box, a test type selection component, a vehicle model selection component, and a pick-up component. The interface includes at least one of the following: a "Pick Node" button, a "Generate Geometric Reference Point" button, a "Generate Test" button, and a "Second Close" button. A second input box is used to perform a first filling operation. A second input box is used to perform a second filling operation. Test type selection components and vehicle model selection components are used to perform selection operations. A "Pick Node" button performs a picking operation. A "Generate Geometric Reference Point" button performs a first generating operation. A "Generate Test" button performs a second generating operation. A second close button performs a second closing operation on the second interactive sub-interface. A third interactive sub-interface includes a third input box, an export button, and a third close button. The third input box performs a third filling operation. The export button performs an export operation of the drive axle model solution results. The third close button performs a third closing operation on the third interactive sub-interface.

[0007] Based on the above technical means, the embodiments of this application further refine the standardized operation of the driving bridge simulation process by structurally designing the first, second and third interactive sub-interfaces respectively, corresponding to the functions of each target interactive area in the main interface, providing a foundation for the orderly advancement of each simulation stage, while conforming to user habits, reducing the operation threshold, and reducing operation errors and redundant steps. The first interactive sub-interface includes a first input box, an import button, and a first close button. The first input box is used for the first filling operation, the import button is specifically used for importing the drive axle model, and the first close button is used to close the first interactive sub-interface, achieving precise control and flexible operation in the model import process. The second interactive sub-interface includes at least one second input box, a test type selection component, a vehicle model selection component, a node pick button, a geometric reference point generation button, a test generation button, and a second close button. Each control has a clear function: the second input box is used for the second filling operation, the test type selection component and vehicle model selection component are used for selection operations, the node pick button is used for picking operations, the geometric reference point generation button is used for the first generation operation, the test generation button is used for the second generation operation, and the close button is used to close the second interactive sub-interface, covering parameter settings, test configuration, and other aspects. The third interactive sub-interface includes a third input box, an export button, and a third close button. The third input box is used for the third filling operation, the export button is specifically used for exporting the solution results of the drive axle model, and the close button is used to close the third interactive sub-interface, achieving standardized and efficient simulation result export. Each sub-interface control corresponds to a function, forming a linkage with the layered interactive design of the main interface. This ensures that every step of the entire simulation process, from model import and parameter configuration to result export, has clear operation guidance, improving ease of operation and standardization.

[0008] Optionally, if the target interactive area is the first interactive area, the target guided operation includes at least one of a first fill operation, an import operation, and a first close operation. The simulation operation of the driving bridge is automatically executed through the target guided operation, including: if the target guided operation is the first fill operation, obtaining the first content text written by the first fill operation and identifying the file path on the first content text; if the target guided operation is the import operation, connecting to the file path, obtaining the driving bridge model from the file path, and importing the driving bridge model into the target location; if the target guided operation is the first close operation, closing the first interactive sub-interface.

[0009] Based on the aforementioned technical means, this embodiment of the application, when the target interactive area is the first interactive area, clarifies the target guidance operation as at least one of the first filling operation, import operation, and first closing operation. This achieves precise guidance and automated execution of the driving bridge model import-related operations, standardizes the simulation initial stage process, improves operational accuracy and efficiency, and reduces the probability of human error. Specifically, when the target guidance operation is the first filling operation, the system automatically obtains the first content text to be filled and identifies the file path within it, providing accurate support for model import and avoiding manual input errors. When it is the import operation, the system automatically connects and obtains the driving bridge model based on the identified path and imports it to the preset target location, simplifying the traditional manual process and reducing human intervention. When it is the first closing operation, the first interactive sub-interface is quickly closed, improving operational flexibility and user experience. This design precisely binds the first interactive area guidance operation with the simulation operation, providing clear automated guidance for each step of model import, refining and standardizing the process, laying the foundation for subsequent stages, and simultaneously reducing the professional threshold and operational difficulty for operators.

[0010] Optionally, if the target interaction area is the second interaction area, the target guidance operation includes at least one of the following: a second fill operation, a selection operation, a pick operation, a first generation operation, a second generation operation, and a second close operation. The simulation operation of the drive axle is automatically executed through the target guidance operation, including: if the target guidance operation is the second fill operation, acquiring the second content text written in the second fill operation and identifying the vehicle parameters on the second content text; if the target guidance operation is the selection operation, determining the vehicle type and test type based on the selection position of the selection operation; if the target guidance operation is the pick operation, automatically acquiring the node coordinates of the geometric center of the drive axle based on the vehicle parameters; if the target guidance operation is the first generation operation, automatically generating the geometric parameters of the drive axle based on the vehicle parameters; if the target guidance operation is the second generation operation, generating the test constraints, load conditions, and loading steps required for the drive axle simulation based on the vehicle type and test type; and if the target guidance operation is the second close operation, closing the second interaction sub-interface.

[0011] Based on the aforementioned technical means, this embodiment of the application, when the target interaction area is a second interaction area, clarifies the target guidance operation as at least one of a second filling operation, a selection operation, a picking operation, a first generation operation, a second generation operation, and a second closing operation. This achieves automated guidance and execution of steps such as drive axle parameter configuration and test condition generation, standardizes the simulation parameter setting process, improves the accuracy and efficiency of parameter configuration, and reduces the complexity of manual operation. Specifically, when the target guidance operation is a second filling operation, the system automatically obtains the second content text and identifies vehicle parameters, providing a data foundation for subsequent configuration; when it is a selection operation, the vehicle type and test type are determined based on the selection location. The system features precise type matching; during the pick operation, it automatically collects the coordinates of the geometric center node of the drive axle based on vehicle parameters, improving coordinate acquisition accuracy; during the first generation operation, it automatically generates drive axle geometric parameters based on vehicle parameters, simplifying manual parameter entry; during the second generation operation, it automatically generates test constraints, load conditions, and loading steps based on vehicle type and test type, ensuring standardized simulation conditions; and during the second close operation, it quickly closes the second interactive sub-interface, improving operational flexibility. This design, through multi-dimensional guided operation covering the entire parameter configuration process, refines standardized simulation operations, provides reliable data and condition support for subsequent simulation solutions and result export, and further reduces the professional threshold for operators.

[0012] Optionally, the geometric parameters of the drive axle are automatically generated based on the vehicle parameters, including: identifying the link address of the button to generate geometric reference points; linking to the fourth interactive sub-interface based on the link address of the button to generate geometric reference points; identifying the third interactive operation of the fourth interactive sub-interface; responding to the third interactive operation; and performing at least one of the first establishment operation, the second establishment operation, and the fourth closing operation on the fourth interactive sub-interface.

[0013] Based on the aforementioned technical means, this embodiment of the application further refines the geometric parameter generation process in the first generation operation, associating the generate geometric reference point button with the fourth interactive sub-interface to achieve layered guidance and refined control of the generation of drive bridge geometric parameters, thereby improving the standardization and operability of geometric parameter generation. Specifically, the system first identifies the link address of the generate geometric reference point button, then jumps to the fourth interactive sub-interface, responds to the third interactive operation, and executes at least one of the first establishment operation, the second establishment operation, and the fourth closing operation. This makes the establishment process of geometric reference points guideable and controllable, avoiding errors and inconsistencies caused by manual establishment, further refining the standardized process of simulation parameter generation, providing an accurate and reliable geometric parameter foundation for subsequent experimental condition generation and simulation solution, while reducing the operator's reliance on professional experience in geometric modeling, and improving overall simulation efficiency and result consistency.

[0014] Optionally, performing at least one of the first establishment operation, the second establishment operation, and the fourth closing operation on the fourth interactive sub-interface includes: if the first establishment operation is performed, generating node numbers for the parts of the drive axle, the parts of the drive axle including at least one leaf spring seat, wheel, axle tube, and brake mounting seat; if the second establishment operation is performed, establishing coupling units based on the nodes of key parts and the geometric center point, and adjusting the position of the geometric center point according to vehicle parameters; if the fourth closing operation is performed, closing the fourth interactive sub-interface.

[0015] Based on the aforementioned technical means, this application embodiment refines the first establishment operation, the second establishment operation, and the fourth closing operation within the fourth interactive sub-interface, thereby achieving standardized and automated processing of key component nodes and geometric center points of the drive axle, further improving the accuracy and consistency of geometric parameter generation. Specifically, when executing the first establishment operation, the system automatically generates and displays node numbers for key components such as leaf spring seats, wheels, axle tubes, and brake mounting seats, achieving visualization and precise positioning of node information. When executing the second establishment operation, coupling units are automatically established based on key component nodes and geometric center points, and the position of the geometric center point is dynamically adjusted according to vehicle parameters to ensure that the geometric model matches the actual working conditions. When executing the fourth closing operation, the fourth interactive sub-interface is quickly closed, improving operational flexibility. This design provides a standardized process for generating drive axle geometric parameters through node numbering, coupling unit establishment, and adaptive position adjustment, reducing manual modeling errors, providing a reliable geometric foundation for subsequent simulation analysis, and simultaneously reducing operational complexity and professional threshold.

[0016] Optionally, if the target interaction area is a third interaction area, the target guidance operation includes at least one of a third fill operation, an export operation, and a third close operation. The simulation operation of the driving bridge is automatically executed through the target guidance operation, including: if the target guidance operation is a third fill operation, then the third content text written by the third fill operation is obtained, and the second file path on the third content text is identified; if the target guidance operation is an export operation, then the second file path is connected, and the solution result of the driving bridge model is exported to the second file path; if the target guidance operation is a third close operation, then the third interaction sub-interface is closed.

[0017] Based on the aforementioned technical means, this application embodiment, when the target interaction area is a third interaction area, clarifies the target guidance operation as at least one of a third fill operation, an export operation, and a third close operation, thereby achieving automated guidance and standardized execution of the export process for the driving bridge simulation solution results, improving the accuracy and convenience of result export. Specifically, when the target guidance operation is a third fill operation, the system automatically obtains the third content text and identifies the second file path, providing accurate path support for result export and avoiding manual input errors; when it is an export operation, it automatically connects and exports the solution results to the specified location based on the identified second file path, simplifying the traditional manual export process and reducing manual intervention; when it is a third close operation, it quickly closes the third interaction sub-interface, improving operational flexibility and user experience. This design precisely binds the third interaction area guidance operation with result export, providing clear automated guidance for the simulation completion stage, refining the standardized process, ensuring the traceability and reusability of simulation results, and reducing the professional threshold and operational difficulty for operators.

[0018] Optionally, after automatically executing the simulation guidance operation of the drive axle through the target guidance operation, the process includes: obtaining the node coordinates of the drive axle geometric center, the geometric parameters of the drive axle, the test constraints, the load conditions and loading steps; generating test parameters based on the node coordinates of the drive axle geometric center, the geometric parameters of the drive axle, the test constraints, the load conditions and loading steps; generating simulation control parameters for the simulation model based on the test parameters; and controlling the simulation model to simulate the drive axle based on the simulation control parameters.

[0019] Based on the aforementioned technical means, this embodiment of the application automatically integrates information such as the coordinates of the geometric center node of the drive axle, geometric parameters, test constraints, load conditions, and loading steps to generate test parameters after the target guidance operation is completed. Then, simulation control parameters are generated based on the test parameters, and the simulation model is controlled to execute the simulation. This achieves fully automated connection of the entire process from parameter acquisition and generation to simulation execution, further standardizes the simulation process, improves simulation efficiency, reduces manual parameter processing and configuration, reduces human error, ensures the consistency and reliability of simulation input conditions, provides a stable and efficient simulation execution foundation for the performance evaluation of drive axle structures, and lowers the professional threshold for operators.

[0020] Optionally, a simulation model is generated based on the drive axle model and drive axle parameters, including: identifying geometric features, connection relationships, and material properties in the drive axle parameters; dividing the drive axle model into polyhedral elements based on the geometric features; assigning material properties to the polyhedral elements; determining the contact relationships of the polyhedral elements based on the connection relationships; determining the coupling type of the polyhedral elements based on the coupling element types in the experimental parameters; and generating a simulation model based on the polyhedral elements, coupling type, and contact relationships.

[0021] Based on the above-mentioned technical means, the embodiments of this application identify the geometric features, connection relationships and material properties in the drive axle parameters, divide the drive axle model into polyhedral elements and assign corresponding material properties, determine the contact relationship between elements based on the connection relationship, determine the coupling type based on the coupling element type in the test parameters, and finally generate a simulation model based on the polyhedral elements, coupling type and contact relationship. This realizes the automation and standardization of simulation model construction, improves modeling accuracy and consistency, reduces manual modeling errors, provides a reliable model foundation for subsequent simulation solutions, and reduces modeling complexity and professional threshold.

[0022] The second aspect of this application provides a drive bridge, which is simulated based on the drive bridge simulation software interaction method of the above embodiments.

[0023] A third aspect of this application provides a vehicle including the drive axle described in the above embodiments.

[0024] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0026] Figure 1 This is a flowchart of a drive bridge simulation software interaction method provided according to an embodiment of this application; Figure 2 This is an architecture diagram of the automated modeling tool for drive axles provided according to embodiments of this application; Figure 3 This is a flowchart illustrating the automated modeling process provided according to embodiments of this application; Figure 4 This is a schematic diagram of mesh division according to an embodiment of this application; Figure 5 This is a schematic diagram of the reference point and coupling unit provided according to an embodiment of this application; Figure 6 This is a schematic diagram of a complete drive axle model provided according to an embodiment of this application; Figure 7 This is a schematic diagram of a vehicle provided according to an embodiment of this application. Detailed Implementation

[0027] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0028] Currently, the drive axle, as a core component of the automotive transmission system, directly determines the vehicle's power, reliability, and ride quality. Performance evaluation of the drive axle is a crucial step in the R&D process. Bench testing remains the mainstream method for drive axle performance verification. However, with evolving R&D needs, finite element simulation technology has become widely used for structural scheme selection and performance prediction due to its ability to perform pre-design verification, shorten the cycle, and reduce costs. Furthermore, its effectiveness is enhanced through closed-loop verification with experimental data. However, the process of transforming the physical model of the drive axle into a precise simulation model still faces numerous challenges.

[0029] The relevant technologies have the following main shortcomings: First, there is a lack of accurate simulation modeling methods for drive axles. Related technologies either focus on other components such as subframes or only on specific scenarios such as special drive axle housings with connecting rods, failing to cover the needs of multi-condition and multi-dimensional performance evaluation of drive axles. Drive axle simulation involves complex elements such as element selection, load application, and boundary condition setting, and general methods are difficult to guarantee adaptability. Secondly, the simulation process is highly dependent on the personal experience of engineers. From model processing to parameter configuration, it is a piecemeal operation with cumbersome steps and low efficiency. Third, preprocessing software generally lacks modeling tools for drive bridges and lacks procedural guidance, which makes it easy for manual configuration to result in problems such as missing parameters and inconsistent model definitions. The simulation process is difficult to evaluate, the model quality fluctuates greatly, and the reliability of the results is directly affected.

[0030] In summary, the relevant technologies have shortcomings in terms of the relevance, process standardization, and result stability of drive axle simulation modeling. They cannot meet the requirements of high-precision and procedural performance evaluation, and are difficult to support efficient and reliable simulation analysis in drive axle R&D.

[0031] The following description, with reference to the accompanying drawings, describes the drive axle simulation software interaction method, drive axle, and vehicle according to embodiments of this application. Addressing the issues mentioned in the background section regarding the reliance on engineer experience and cumbersome operation steps in drive axle simulation, this application provides a standardized simulation modeling method for drive axles. This method, through a layered interactive design of a main interface and multiple sub-interfaces, decomposes the simulation process into a standardized chain of model import, parameter configuration, operating condition settings, simulation execution, and result export. Each step is visualized through structured input areas and function buttons. Furthermore, based on the structural characteristics of the drive axle and simulation requirements, a parameterized model generation logic and operating condition adaptation mechanism are established, eliminating the need for fragmented configuration based on engineer experience.

[0032] Specifically, Figure 1 This is a flowchart illustrating a drive bridge simulation software interaction method provided in an embodiment of this application.

[0033] like Figure 1 As shown, the main interactive interface of the drive axle simulation software is divided into target interactive areas, which are linked to target interactive sub-interfaces. The interactive method of this drive axle simulation software includes the following steps: In step S101, the first interactive operation of the main interactive interface and the second interactive operation of the target interactive sub-interface are identified.

[0034] It is understood that, by recognizing the first interactive operation of the main interactive interface and the second interactive operation of the target interactive sub-interface, the embodiments of this application can respond to user operations on the main interface and sub-interface respectively, providing a basis for subsequent interface jump and guidance operations based on the operation position, making the interaction process of the drive bridge simulation software more coherent and controllable, and improving the standardization and convenience of operation.

[0035] It should be noted that the main interactive interface refers to the main operation window of the drive axle automated simulation modeling tool, which is the starting point for all operations; the first interactive operation refers to the operation performed by the user on the main interactive interface; the target interactive sub-interface refers to the secondary operation window corresponding to the target interactive area in the main interactive interface, used to perform specific simulation operations, including the first interactive sub-interface, the second interactive sub-interface, and the third interactive sub-interface; the second interactive operation refers to the operation performed by the user on the target interactive sub-interface.

[0036] Specifically, such as Figure 2 As shown, in step S101, the system simultaneously identifies the user's first interactive operation on the main interactive interface and the second interactive operation on the target interactive sub-interface, providing a basis for subsequent interface jumps and guidance operations based on the operation location.

[0037] In step S102, in response to the first interactive operation, the first interactive position of the first interactive operation on the main interactive interface is identified, the target interactive area to be operated is determined according to the first interactive position, and the target interactive sub-interface is jumped to according to the link address corresponding to the target interactive area.

[0038] It is understood that, in this embodiment of the application, by responding to the first interactive operation, the first interactive position of the operation on the main interactive interface is determined, and then the target interactive area to be operated is located. Based on the link address corresponding to the area, the user jumps to the target interactive sub-interface, thereby achieving accurate jump from the main interface to the corresponding sub-interface. This makes the interface switching directly related to the user's operation position, improving the accuracy of interface navigation and the intuitiveness of operation, and providing a clear interface entry point for subsequent simulation guidance operations in the sub-interface.

[0039] It should be noted that the first interaction location refers to the specific area coordinates when the user clicks on the main interactive interface; the target interaction area refers to the three major functional modules "first interaction area", "second interaction area" and "third interaction area" on the main interactive interface; and the link address is the preset association path between each interaction area and its corresponding sub-interface.

[0040] Specifically, such as Figure 2 As shown, when a user clicks the "first interactive area" on the main interactive interface, the system identifies the first interactive location, locates the target interactive area being operated on, and then automatically jumps to the "first interactive sub-interface" based on the link address of that area; similarly, clicking the "second interactive area" will jump to the "second interactive sub-interface", and clicking the "third interactive area" will jump to the "third interactive sub-interface", thus achieving precise switching from the main interface to the corresponding sub-interface.

[0041] In this embodiment, the target interactive area is at least one of a first interactive area, a second interactive area, and a third interactive area. The target interactive sub-interface includes at least one of a first interactive sub-interface, a second interactive sub-interface, and a third interactive sub-interface. The first interactive area is linked to the first interactive sub-interface, the second interactive area is linked to the second interactive sub-interface, and the third interactive area is linked to the third interactive sub-interface. The first interactive sub-interface is provided with a first input box, an import button, and a first close button. The first input box is used to perform a first filling operation, the import button is used to perform an import operation of the drive axle model, and the first close button is used to perform a first close operation of the first interactive sub-interface. The second interactive sub-interface displays at least one second input box, a test type selection component, and a vehicle model selection group. The interface includes at least one of the following: a component selection component, a node selection button, a geometric reference point generation button, a test generation button, and a close button. A second input box is used to perform a first filling operation. A second input box is used to perform a second filling operation. Test type selection components and vehicle model selection components are used to perform selection operations. The node selection button performs a picking operation. The geometric reference point generation button performs a first generation operation. The test generation button performs a second generation operation. The close button performs a second closing operation. The third interactive sub-interface includes a third input box, an export button, and a close button. The third input box performs a third filling operation. The export button performs an export operation of the drive axle model solution results. The close button performs a third closing operation.

[0042] It is understood that the embodiments of this application further refine the standardized operation of the driving bridge simulation process by structurally designing the first, second, and third interactive sub-interfaces respectively, corresponding to the functions of each target interactive area in the main interface, providing a foundation for the orderly advancement of each simulation stage, while conforming to user habits, reducing the operation threshold, and reducing operation errors and redundant steps. The first interactive sub-interface includes a first input box, an import button, and a first close button. The first input box is used for the first filling operation, the import button is specifically used for importing the drive axle model, and the first close button is used to close the first interactive sub-interface, achieving precise control and flexible operation in the model import process. The second interactive sub-interface includes at least one second input box, a test type selection component, a vehicle model selection component, a node pick button, a geometric reference point generation button, a test generation button, and a second close button. Each control has a clear function: the second input box is used for the second filling operation, the test type selection component and vehicle model selection component are used for selection operations, the node pick button is used for picking operations, the geometric reference point generation button is used for the first generation operation, the test generation button is used for the second generation operation, and the close button is used to close the second interactive sub-interface, covering parameter settings, test configuration, and other aspects. The third interactive sub-interface includes a third input box, an export button, and a third close button. The third input box is used for the third filling operation, the export button is specifically used for exporting the solution results of the drive axle model, and the close button is used to close the third interactive sub-interface, achieving standardized and efficient simulation result export. Each sub-interface control corresponds to a function, forming a linkage with the layered interactive design of the main interface. This ensures that every step of the entire simulation process, from model import and parameter configuration to result export, has clear operation guidance, improving ease of operation and standardization.

[0043] It should be noted that the first interactive area is the module responsible for model import in the main interface; the second interactive area is the module responsible for parameter configuration in the main interface; and the third interactive area is the module responsible for simulation execution and result export in the main interface.

[0044] In this embodiment of the application, if the target interaction area is a first interaction area, the target guidance operation includes at least one of a first fill operation, an import operation, and a first close operation. The simulation operation of the driving bridge is automatically executed through the target guidance operation, including: if the target guidance operation is a first fill operation, then the first content text written by the first fill operation is obtained, and the file path on the first content text is identified; if the target guidance operation is an import operation, then the file path is connected, the driving bridge model is obtained from the file path, and the driving bridge model is imported into the target location; if the target guidance operation is a first close operation, then the first interaction sub-interface is closed.

[0045] It is understood that, in this application embodiment, when the target interaction area is the first interaction area, the target guidance operation is clearly defined as at least one of the first fill operation, import operation, and first close operation. This achieves precise guidance and automated execution of the driving bridge model import-related operations, standardizes the simulation initial stage process, improves operational accuracy and efficiency, and reduces the probability of human error. Specifically, when the target guidance operation is the first fill operation, the system automatically obtains the first content text to be filled in and identifies the file path within it, providing accurate support for model import and avoiding manual input errors; when it is the import operation, the system automatically connects and obtains the driving bridge model based on the identified path and imports it to the preset target location, simplifying the traditional manual process and reducing human intervention; when it is the first close operation, the first interaction sub-interface is quickly closed, improving operational flexibility and user experience. This design precisely binds the first interaction area guidance operation with the simulation operation, providing clear automated guidance for each step of model import, refining and standardizing the process, laying the foundation for subsequent stages, and reducing the professional threshold and operational difficulty for operators.

[0046] Specifically, such as Figure 2 As shown, in response to the user's click on the first interactive area of ​​the main interface, the first sub-interface, Step 1: Import Basic Model, is launched. This sub-interface imports the geometric model of the drive axle. The model must include complex features such as chamfers, holes, and arcs from the casting. After import, it will serve as the basis for subsequent mesh generation and simulation model generation, and is compatible with Hypermesh and Simlab preprocessing software formats. The first input area is the "Select File Path" input box in the Step 1: Import Basic Model window, used to fill in the first file path of the drive axle model, supporting CAE model formats. The "Import" button is the "Start Import Model" button in the Step 1: Import Basic Model window, which automatically verifies the model's integrity upon triggering, ensuring that stress-sensitive features such as holes and chamfers are not missing. The first "Close" button is the "Close" button in the Step 1: Import Basic Model window, closing the window upon triggering. If the model is not completely imported, a prompt will appear to prevent incomplete models from entering subsequent processes.

[0047] In this embodiment, if the target interaction area is a second interaction area, the target guidance operation includes at least one of a second fill operation, a selection operation, a pick operation, a first generation operation, a second generation operation, and a second close operation. The target guidance operation automatically executes the simulation operation of the drive axle, including: if the target guidance operation is a second fill operation, acquiring the second content text written in the second fill operation and identifying the vehicle parameters on the second content text; if the target guidance operation is a selection operation, determining the vehicle type and test type based on the selection position of the selection operation; if the target guidance operation is a pick operation, automatically collecting the node coordinates of the geometric center of the drive axle based on the vehicle parameters; if the target guidance operation is a first generation operation, automatically generating the geometric parameters of the drive axle based on the vehicle parameters; if the target guidance operation is a second generation operation, generating the test constraints, load conditions, and loading steps required for the drive axle simulation based on the vehicle type and test type; and if the target guidance operation is a second close operation, closing the second interaction sub-interface.

[0048] It is understood that, in this application embodiment, when the target interaction area is the second interaction area, the target guidance operation is clearly defined as at least one of the following: a second filling operation, a selection operation, a picking operation, a first generation operation, a second generation operation, and a second closing operation. This achieves automated guidance and execution of steps such as drive axle parameter configuration and test condition generation, standardizes the simulation parameter setting process, improves the accuracy and efficiency of parameter configuration, and reduces the complexity of manual operation. Specifically, when the target guidance operation is the second filling operation, the system automatically obtains the second content text and identifies vehicle parameters, providing a data foundation for subsequent configuration; when it is the selection operation, the vehicle type and test type are determined according to the selection location, realizing... The system features precise type matching; during the pick operation, it automatically collects the coordinates of the drive axle geometric center node based on vehicle parameters, improving coordinate acquisition accuracy; during the first generation operation, it automatically generates drive axle geometric parameters based on vehicle parameters, simplifying manual parameter entry; during the second generation operation, it automatically generates test constraints, load conditions, and loading steps based on vehicle type and test type, ensuring standardized simulation conditions; and during the second close operation, it quickly closes the second interactive sub-interface, enhancing operational flexibility. This design, through multi-dimensional guided operation, covers the entire parameter configuration process, refines standardized simulation operations, provides reliable data and condition support for subsequent simulation solutions and result export, and further reduces the professional threshold for operators.

[0049] It should be noted that the second input operation refers to the user entering the drive axle geometric parameters in the input box of the second interactive sub-interface; the selection operation refers to the user selecting components by test type, selecting simulation evaluation scenarios and suitable vehicle models by vehicle model selection components; the pick operation refers to the user automatically collecting the coordinates of the drive axle geometric center node by using the "Pick Node" button; the first generation operation refers to the user launching the fourth interactive sub-interface by using the "Generate Geometric Reference Point" button to generate the node numbers, coupling unit types, and geometric center point positions of key parts of the drive axle; the second generation operation refers to the user automatically generating test constraints, load conditions, and loading steps based on the selected test type and vehicle model by using the "Generate Test" button; and the second close operation refers to the user closing the second interactive sub-interface by using the "Second Close Button".

[0050] Specifically, such as Figure 2 As shown, in response to the user's click on the Step 2: Model Parameter Setting module in the second interactive area of ​​the main interactive interface, the second interactive sub-interface Step 2: Model Parameter Setting window is launched. This sub-interface allows for the configuration and acquisition of drive axle parameters and test parameters. Drive axle parameters include geometric parameters such as center reference point coordinates, leaf spring center spacing, wheelbase, and axle housing bearing capacity. Test parameters are comprehensive parameters that provide a basis for simulation, consisting of two parts: first, the node numbers, coupling unit types, and geometric center point positions of key drive axle components generated after launching the fourth interactive sub-interface via the "Generate Geometric Reference Point" button; second, the constraints, load conditions, and loading steps automatically generated via the "Generate Test" button, combined with the selected test type and vehicle model. The test type serves as an important basis for generating test parameters and is selected through checkboxes such as "Vertical Bending Stiffness" and "Vertical Bending Fatigue Strength" within the interface, corresponding to six types of structural performance evaluation conditions for the drive axle, as shown in Table 1. Table 1

[0051] Table 1 covers the evaluation scenarios for the drive axle structural performance. Six working conditions correspond to performance evaluation under different force directions and actual usage scenarios: Working condition 1 corresponds to the vertical bending stiffness category, examining the structural characteristics of the drive axle under vertical force through vertical loading; Working condition 2 corresponds to the vertical bending fatigue category, examining the structural tolerance performance under long-term vertical force through vertical loading; Working conditions 3 and 4 correspond to the braking fatigue category, covering the force scenarios under different braking conditions with positive and negative loading, respectively; Working conditions 5 and 6 correspond to the lateral fatigue category, examining the structural performance under lateral force through positive and negative loading. These working conditions fully cover the common force scenarios in the actual application of drive axles, ensuring the validity of the simulation results. Step 2 of the second interactive sub-interface: The second input area in the model parameter setting window refers to input boxes such as "leaf spring center distance", used to collect the geometric parameters of the drive axle, providing a basis for subsequent reference point positioning and coupling type settings; Test type selection component: presented in the form of checkboxes, including options such as "vertical bending stiffness" and "braking fatigue strength", allowing users to select the performance scenarios to be evaluated; Vehicle type selection component: presented in the form of radio buttons, with options such as "tractor" and "freight vehicle", matching the actual application vehicle type of the drive axle; The second close button refers to the "close" button in Step 2 of the second interactive sub-interface: the model parameter setting window, which closes the window when triggered; before closing, the parameter integrity is automatically checked to avoid missing key parameters. In the second interactive sub-interface, "Step 2: Model Parameter Settings," the "Pick Node" button is located next to the "Center Reference Point Coordinates" input box. When triggered, it automatically collects the node coordinates of the geometric center of the drive axle and directly fills them into the input box. When the "Generate Geometric Reference Point" button is triggered, the third-level sub-interface "Step 2: Model Parameter Settings - Generate Geometric Reference Point," which is the fourth interactive sub-interface, is launched to generate the first part of the test parameters. The "Generate Test" button, combined with the test type checkbox (such as vertical bending stiffness) and vehicle type radio button (such as tractor) in the interface, automatically generates the constraints, load conditions, and loading steps required for simulation, which is the second part of the test parameters.

[0052] In this embodiment of the application, the automatic generation of the geometric parameters of the drive axle based on the vehicle parameters includes: identifying the link address of the button to generate geometric reference points; linking to the fourth interactive sub-interface based on the link address of the button to generate geometric reference points; identifying the third interactive operation of the fourth interactive sub-interface; responding to the third interactive operation; and performing at least one of the first establishment operation, the second establishment operation, and the fourth closing operation on the fourth interactive sub-interface.

[0053] It is understood that, in this embodiment of the application, the geometric parameter generation process is further refined in the first generation operation. The button to generate geometric reference points is associated with the fourth interactive sub-interface, thereby achieving hierarchical guidance and refined control of the generation of geometric parameters of the drive bridge, and improving the standardization and operability of geometric parameter generation. Specifically, the system first identifies the link address of the button to generate geometric reference points, then jumps to the fourth interactive sub-interface, responds to the third interactive operation and executes at least one of the first establishment operation, the second establishment operation and the fourth closing operation. This makes the establishment process of geometric reference points guideable and controllable, avoiding errors and inconsistencies caused by manual establishment, further refining the standardized process of simulation parameter generation, providing an accurate and reliable geometric parameter basis for subsequent experimental condition generation and simulation solution, while reducing the operator's reliance on professional experience in geometric modeling, and improving the overall simulation efficiency and result consistency.

[0054] It should be noted that the "Generate Geometric Reference Point" button refers to the function button in the second interactive sub-interface used to trigger a jump to the fourth interactive sub-interface; the link address is the preset association path between the "Generate Geometric Reference Point" button and the fourth interactive sub-interface; the fourth interactive sub-interface is a three-level operation window used to generate drive axle geometric reference points; the third interactive operation refers to the operation performed by the user on the fourth interactive sub-interface; the first establishment operation refers to the operation of generating and displaying the node numbers of key parts of the drive axle in the fourth interactive sub-interface; the second establishment operation refers to the operation of establishing coupling units based on key part nodes and geometric center points, and adjusting the position of the geometric center point according to vehicle parameters; the fourth close operation refers to the operation of closing the fourth interactive sub-interface and returning to the second interactive sub-interface; the node number refers to the unique identification number of the structural node of the key part of the drive axle, used to accurately locate the force or connection position during simulation and avoid confusion between nodes of different parts; coupling refers to constructing the association relationship between the dispersed nodes of the key parts and the geometric center point to simulate the connection method and force transmission path of the actual structure; the geometric center point is a virtual reference point (non-physical structure) calculated based on drive axle parameters such as the center distance of the drive axle leaf springs and the wheel track, serving as the reference anchor point for the coupling relationship and concentrating the force transmission effect.

[0055] Specifically, in the fourth interactive sub-interface "Step2: Model Parameter Settings: Generate Geometric Reference Points" window: the reference point establishment module includes 7 types of modules such as "Upper Leaf Spring Seat Reference Point", "Lower Leaf Spring Seat Reference Point", and "Wheel / Axle Tube Reference Point". The fourth display area of ​​each module is used to display the node number of the corresponding key part of the drive axle; the establish button is the "establish" button next to each module. When triggered, it establishes a coupling unit between the corresponding part node and the geometric center point, and generates the first part of the test parameters such as node number, coupling unit type and geometric center point position; the fourth close button is the "close" button of this window. When triggered, it closes the window and returns to the second interactive sub-interface.

[0056] In this embodiment of the application, performing at least one of the first establishment operation, the second establishment operation, and the fourth closing operation on the fourth interactive sub-interface includes: if the first establishment operation is performed, generating node numbers for the parts of the drive axle, the parts of the drive axle including at least one of a leaf spring seat, a wheel, an axle tube, and a brake mounting seat; if the second establishment operation is performed, establishing coupling units based on the nodes of key parts and the geometric center point, and adjusting the position of the geometric center point according to vehicle parameters; if the fourth closing operation is performed, closing the fourth interactive sub-interface.

[0057] It is understood that the embodiments of this application, by finely defining the first establishment operation, the second establishment operation, and the fourth closing operation in the fourth interactive sub-interface, achieve standardized and automated processing of key component nodes and geometric center points of the drive axle, further improving the accuracy and consistency of geometric parameter generation. Specifically, when executing the first establishment operation, the system automatically generates and displays node numbers for key components such as leaf spring seats, wheels, axle tubes, and brake mounting seats, realizing visualization and precise positioning of node information. When executing the second establishment operation, coupling units are automatically established based on key component nodes and geometric center points, and the position of the geometric center point is dynamically adjusted according to vehicle parameters to ensure that the geometric model matches the actual working conditions. When executing the fourth closing operation, the fourth interactive sub-interface is quickly closed, improving operational flexibility. This design provides a standardized process for generating drive axle geometric parameters through node numbering, coupling unit establishment, and adaptive position adjustment, reducing manual modeling errors, providing a reliable geometric basis for subsequent simulation analysis, and reducing operational complexity and professional threshold.

[0058] In this embodiment, if the target interaction area is a third interaction area, the target guidance operation includes at least one of a third fill operation, an export operation, and a third close operation. The simulation operation of the driving bridge is automatically executed through the target guidance operation, including: if the target guidance operation is a third fill operation, then the third content text written by the third fill operation is obtained, and the second file path on the third content text is identified; if the target guidance operation is an export operation, then the second file path is connected, and the solution result of the driving bridge model is exported to the second file path; if the target guidance operation is a third close operation, then the third interaction sub-interface is closed.

[0059] It is understood that, in this application embodiment, when the target interaction area is a third interaction area, the target guidance operation is clearly defined as at least one of the third fill operation, export operation, and third close operation. This achieves automated guidance and standardized execution of the export process for the driving bridge simulation solution results, improving the accuracy and convenience of result export. Specifically, when the target guidance operation is the third fill operation, the system automatically obtains the third content text and identifies the second file path, providing accurate path support for result export and avoiding manual input errors. When it is the export operation, the system automatically connects and exports the solution results to the specified location based on the identified second file path, simplifying the traditional manual export process and reducing manual intervention. When it is the third close operation, the third interaction sub-interface is quickly closed, improving operational flexibility and user experience. This design precisely binds the third interaction area guidance operation with result export, providing clear automated guidance for the simulation completion stage, refining the standardized process, ensuring the traceability and reusability of simulation results, and reducing the professional threshold and operational difficulty for operators.

[0060] It should be noted that the third interactive sub-interface is the secondary operation window for performing drive bridge simulation; the simulation button is the function button to start the simulation within the third interactive sub-interface; the third input area is the simulation result export path configuration module within the third interactive sub-interface; the second file path refers to the storage path of the drive bridge simulation results, such as the local folder path, used to specify the export location of the simulation results; and the third close button is the button to close the window within the third interactive sub-interface.

[0061] Specifically, such as Figure 2 As shown, in response to the user's click on the "Step3: Export Solved Model" module in the third interactive area of ​​the main interactive interface, the third interactive sub-interface "Step3: Export Solved Model" window is launched. The function button in this interface corresponds to the simulation button. When this button is triggered, the system will automatically carry out the drive bridge simulation process based on the imported drive bridge model, the drive bridge parameters configured in the second interactive sub-interface, and the experimental parameters. In the Step3: Export Solved Model window of the third interactive sub-interface: the third input area corresponds to the file path input box, which is used to input the second file path for exporting the drive bridge simulation results; the simulation button is the "Export Solved Model" button in the interface. When triggered, it starts the drive bridge simulation process and automatically exports the simulation results to the preset second file path; the third close button is the "Close" button of this window. When triggered, it closes the third interactive sub-interface.

[0062] In step S103, in response to the second interactive operation, the second interactive position of the second interactive operation on the target interactive sub-interface is identified, and the target guidance operation is executed according to the second interactive position. The simulation guidance operation of the drive bridge is automatically executed through the target guidance operation. The simulation guidance operation includes importing the drive bridge model, deriving the solution of the drive bridge model, and setting the parameters of the drive bridge model.

[0063] It is understood that, in this embodiment of the application, by responding to the second interactive operation, the second interactive position of the operation on the target interactive sub-interface is determined, and then the corresponding target guidance operation is executed. The simulation guidance operation, such as importing the driving bridge model, setting parameters, and exporting the solution, is automatically completed, so that the simulation operation in the sub-interface directly corresponds to the user's operation position. This realizes the automated execution of the simulation process, simplifies the operation steps, and improves the standardization and efficiency of the simulation operation.

[0064] Specifically, such as Figure 2 As shown, after the simulation is triggered in the third interactive sub-interface "Step3: Export Solution Model", the system will complete the simulation process according to a fixed logic: First, based on the imported drive bridge model, combined with the drive bridge parameters configured in the second interactive sub-interface and the generated test parameters, a simulation model matching the actual structure is constructed; then, based on the constraint conditions, load conditions and other information in the test parameters, the simulation control parameters required for the simulation model are generated; finally, the simulation control parameters are used as instructions to drive the simulation model to run and complete the simulation analysis of the drive bridge.

[0065] In this embodiment of the application, after automatically executing the simulation guidance operation of the drive axle through the target guidance operation, the process includes: obtaining the node coordinates of the drive axle geometric center, the geometric parameters of the drive axle, the test constraints, the load conditions and the loading steps; generating test parameters based on the node coordinates of the drive axle geometric center, the geometric parameters of the drive axle, the test constraints, the load conditions and the loading steps; generating simulation control parameters for the simulation model based on the test parameters; and controlling the simulation model to simulate the drive axle based on the simulation control parameters.

[0066] It is understood that, after completing the target guidance operation, the embodiments of this application automatically integrate information such as the coordinates of the geometric center node of the drive axle, geometric parameters, test constraints, load conditions and loading steps to generate test parameters, and then generate simulation control parameters based on the test parameters and control the simulation model to execute the simulation. This achieves fully automated connection of the entire process from parameter acquisition and generation to simulation execution, further standardizes the simulation process, improves simulation efficiency, reduces manual parameter processing and configuration, reduces human error, ensures the consistency and reliability of simulation input conditions, provides a stable and efficient simulation execution foundation for the performance evaluation of drive axle structures, and lowers the professional threshold for operators.

[0067] In this embodiment, generating a simulation model based on the drive axle model and drive axle parameters includes: identifying geometric features, connection relationships, and material properties in the drive axle parameters; dividing the drive axle model into polyhedral elements based on the geometric features; assigning material properties to the polyhedral elements; determining the contact relationships of the polyhedral elements based on the connection relationships; determining the coupling type of the polyhedral elements based on the coupling element types in the experimental parameters; and generating a simulation model based on the polyhedral elements, coupling type, and contact relationships.

[0068] It is understood that the embodiments of this application identify the geometric features, connection relationships and material properties in the drive axle parameters, divide the drive axle model into polyhedral elements and assign corresponding material properties, determine the contact relationship between elements based on the connection relationship, determine the coupling type based on the coupling element type in the experimental parameters, and finally generate a simulation model based on the polyhedral elements, coupling type and contact relationship. This realizes the automation and standardization of simulation model construction, improves modeling accuracy and consistency, reduces manual modeling errors, provides a reliable model foundation for subsequent simulation solutions, and reduces modeling complexity and professional threshold.

[0069] Specifically, geometric features refer to the key geometric elements in the drive axle structure that affect stress, deformation, and simulation accuracy. These include chamfers, holes, arcs, leaf spring seat mounting surfaces, welds between the axle tube and the axle housing, and the connection surfaces of the brake mounting brackets. These are key elements that need to be retained during mesh generation, directly affecting the simulation accuracy of stress concentration and local deformation. Connection relationships refer to the actual assembly and connection methods between various components of the drive axle, such as the axle housing body, axle tube, leaf spring seat, and brake mounting brackets. These include welded connections, bolted connections, and contact surface mating. Tie contact will be used to simulate these strong connections to ensure that the force transmission in the simulation conforms to the real assembly logic. Material properties refer to the mechanical parameters of the drive axle material, including elastic modulus, Poisson's ratio, and density. In actual modeling, these parameters need to be configured according to the real material and assigned to elements through material cards to ensure that the mechanical behavior of the simulation model is consistent with the solid model. Polyhedral elements refer to the smallest simulation elements after the drive axle model is discretized. This application uses second-order tetrahedral elements (type C3D10M), generated through mesh generation (element size 1mm at key features, average 3-5mm), which serve as the basic carrier for bearing material properties and transmitting forces and stresses. Contact relationships refer to the constraint relationships between simulated components in terms of contact state and force transmission. This application uses Tie contact to ensure that the force transmission between components is complete and undistorted. Coupled element types refer to the force / motion association type between key nodes of components and geometric reference points: RB2 is used for leaf spring seats and brake supports, allowing for slight deformation and avoiding excessive model stiffening; RB3 is used for axle tubes and wheels, providing rigid binding to ensure concentrated force transmission in core areas. Associations need to be established according to experimental parameters to restore the connection logic of the real test bench.

[0070] According to the drive bridge simulation software interaction method proposed in this application, the drive bridge simulation process is standardized into a complete link of interface interaction, model import, parameter setting, and simulation solution export through a layered interactive design of the main interactive interface and multiple interactive sub-interfaces. Visual operation replaces complex manual configuration, effectively simplifying the operation process of drive bridge simulation, reducing manual intervention, and significantly improving modeling and simulation efficiency. At the same time, it solidifies unified operation specifications, avoids model inconsistencies caused by experience differences, ensures the reliability and repeatability of simulation results, and reduces the dependence on the professional experience of operators, providing an efficient and standardized solution for drive bridge structural performance evaluation.

[0071] The automated modeling process will now be illustrated with a specific example, such as... Figure 3 As shown, the specific steps are as follows: In step one, the basic model of the drive axle is imported. The CAD geometric model of the drive axle is imported to obtain its complete structural geometric features, providing the original geometric carrier for subsequent modeling steps such as mesh generation and parameter configuration. After importing, a geometric feature-based mesh generation method is used: identical geometric features of the drive axle, such as chamfers, holes, and arcs, are grouped. Face mesh control constraints are set for the grouped elements, such as a unit size of 1mm at key features and an average of 3-5mm. This is repeatedly adjusted until the mesh meets the requirements, generating second-order tetrahedral elements, for example, of type C3D10M. Simultaneously, material properties are configured, filling in the elastic modulus, Poisson's ratio, and density according to the actual material. The attribute card is set to Solid. The mesh generation effect is as follows. Figure 4 As shown.

[0072] In step two, the drive axle parameters are configured and geometric reference points are established. This involves configuring geometric parameters such as the leaf spring center distance, wheel track, and tire radius of the drive axle; simultaneously, for key components such as the leaf spring mounts, brake mounting brackets, and wheels, corresponding geometric reference points are calculated and located based on these parameters. Figure 5 As shown, reference points are established for components such as the axle housing and leaf spring supports, and the relationships between key components and reference points are set. Then, the "Set Boundary Conditions" step is performed: different coupling types are selected for different components; the axle tube is coupled to the center node using RB3, while the wheels and leaf spring supports are coupled to reference nodes using RB2. Simultaneously, based on the assembly relationship, tie contacts are established on the contact surfaces of the drive axle housing, axle tube, and leaf spring supports to simulate the actual connection relationship.

[0073] In step three, the test items and simulation parameters are automatically generated. Based on the selected drive axle test type, such as vertical bending, braking fatigue, and lateral fatigue, matching simulation constraints and load steps are automatically generated: Under the vertical bending stiffness / fatigue condition, the left wheel is constrained by X / Y / Z translation and X rotation, and the right wheel is constrained by Y / Z translation and X rotation. The upper leaf spring reference point is applied with 1, 2 / 2.5 times the axle housing load capacity, respectively; Under the braking fatigue condition, the leaf spring seat is fully constrained, and the left wheel is applied with 0.3 times the axle housing load capacity in the Z direction (positive / negative); Under the lateral fatigue condition, the leaf spring seat is fully constrained, and the left wheel is applied with 0.4 times and 0.2 times the axle housing load capacity in the X direction (positive / negative), respectively. Simultaneously, simulation control parameters are configured, the STATIC statics module is used to establish the analysis step, the corresponding load set is loaded, and the incremental step and output database are set. Finally, the analysis step parameters adapted to the test type are automatically generated.

[0074] In step four, the simulation model is exported and the simulation is executed. For example... Figure 6 As shown, Figure 6 This is a simulation model of the drive axle that integrates geometric features, material properties, constraints, and loads. It is the visualization result after the "automatic generation of constraints and loads" step in step three. After exporting the model to a solver-compatible file format, the drive axle structural performance simulation calculation is performed based on the configured simulation parameters, and the simulation results are exported to a specified storage location. After the simulation is completed, the results are evaluated: under the vertical bending stiffness condition, the ratio of the maximum deformation of the axle shell to the wheelbase is calculated, which must satisfy "1.2 × 1.2 ≤ 1.4 mm / m"; for other conditions (condition categories are shown in Table 1), the maximum Mises stress is read, which must be ≤ the allowable stress of the material, thereby assessing the structural strength and guiding optimization. The complete model corresponding to the above process has been built.

[0075] In summary, the embodiments of this application have at least the following beneficial effects: (1) Construct an accurate modeling method for the drive bridge from physics to simulation, and combine the Abaqus solver and Hypermesh and Simlab preprocessing software to achieve accurate simulation, effectively improving the consistency between simulation results and experiments, and reducing the cost of R&D trial and error.

[0076] (2) Form a process-oriented and automated modeling tool that sets parameterized rules for loads and boundary conditions, solidify key modeling rules to replace experience-based reliance, reduce human configuration differences, and improve the consistency of modeling results.

[0077] (3) By using parametric design and automated modeling, the manual operation steps of drive bridge simulation modeling are simplified, the problem of missing configuration items is reduced, and the modeling efficiency and model integrity are improved.

[0078] (4) It solves the problems of many steps, low efficiency, easy omissions, and lack of process execution path and verification mechanism in the manual modeling of related technologies. It realizes "visualized process automated modeling" by relying on secondary development and clarifies the execution and verification logic of the entire modeling process.

[0079] This application also provides a drive bridge, which is evaluated based on the simulation results of the drive bridge simulation software interaction method described above.

[0080] This application also provides a vehicle, such as... Figure 7 As shown, it includes the drive bridge of the above embodiment.

[0081] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0082] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0083] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0084] It should be understood that various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any of the following techniques known in the art, or a combination thereof: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (FPGAs), field-programmable gate arrays (FPGAs), etc.

[0085] Those skilled in the art will understand that all or part of the steps of the methods implementing the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0086] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A software interaction method for driving axle simulation, characterized in that, The main interactive interface of the drive axle simulation software is divided into target interactive areas, which are linked to target interactive sub-interfaces. The method includes the following steps: Identify the first interactive operation of the main interactive interface and the second interactive operation of the target interactive sub-interface; In response to the first interactive operation, the first interactive position of the first interactive operation on the main interactive interface is identified, the target interactive area to be operated is determined according to the first interactive position, and the target interactive sub-interface is jumped to according to the link address corresponding to the target interactive area. In response to the second interactive operation, the second interactive position of the second interactive operation on the target interactive sub-interface is identified, and a target guidance operation is executed according to the second interactive position. The simulation guidance operation of the drive bridge is automatically executed through the target guidance operation. The simulation guidance operation includes importing the drive bridge model, deriving the solution of the drive bridge model, and setting the parameters of the drive bridge model.

2. The drive axle simulation software interaction method according to claim 1, characterized in that, If the target interaction area is a first interaction area, then the target guidance operation includes at least one of a first fill operation, an import operation, and a first close operation. The automatic execution of the simulation operation of the drive bridge through the target guidance operation includes: If the target guidance operation is the first filling operation, then obtain the first content text written by the first filling operation and identify the file path on the first content text; If the target guidance operation is the import operation, then connect to the file path, obtain the driver bridge model from the file path, and import the driver bridge model into the target location; If the target guidance operation is the first closing operation, then the first interactive sub-interface is closed.

3. The drive axle simulation software interaction method according to claim 1, characterized in that, If the target interaction area is a second interaction area, then the target guidance operation includes at least one of a second fill operation, a selection operation, a pick operation, a first generation operation, a second generation operation, and a second close operation. The automatic execution of the simulation operation of the drive bridge through the target guidance operation includes: If the target guidance operation is the second filling operation, then obtain the second content text written by the second filling operation and identify the vehicle parameters on the second content text; If the target guidance operation is the selection operation, then the vehicle type and test type are determined according to the selection position of the selection operation; If the target guidance operation is the picking operation, then the node coordinates of the geometric center of the drive axle are automatically collected according to the vehicle parameters; If the target guidance operation is the first generation operation, then the geometric parameters of the drive axle are automatically generated based on the vehicle parameters; If the target guidance operation is the second generation operation, then the test constraints, load conditions and loading steps required for the drive axle simulation are generated according to the vehicle type and the test type. If the target guidance operation is the second closing operation, then the second interactive sub-interface is closed.

4. The drive axle simulation software interaction method according to claim 3, characterized in that, The step of automatically generating the geometric parameters of the drive axle based on the vehicle parameters includes: Identify the link address of the "Generate Geometric Reference Point" button; The link address of the "Generate Geometric Reference Point" button is used to link to the fourth interactive sub-interface. The third interactive operation of the fourth interactive sub-interface is identified, and the third interactive operation is responded to. At least one of the first establishment operation, the second establishment operation, and the fourth closing operation is performed on the fourth interactive sub-interface.

5. The drive axle simulation software interaction method according to claim 4, characterized in that, The execution of at least one of the first establishment operation, the second establishment operation, and the fourth closing operation on the fourth interactive sub-interface includes: If the first creation operation is performed, a node number is generated to display the parts of the drive axle, the parts of which include at least one of a leaf spring seat, a wheel, an axle tube, and a brake mounting seat. If the second establishment operation is performed, a coupling unit is established based on the nodes of the key parts and the geometric center point, and the position of the geometric center point is adjusted according to the vehicle parameters; If the fourth closing operation is performed, the fourth interactive sub-interface will be closed.

6. The drive axle simulation software interaction method according to claim 2, characterized in that, If the target interaction area is a third interaction area, then the target guidance operation includes at least one of a third fill operation, an export operation, and a third close operation. The automatic execution of the simulation operation of the drive bridge through the target guidance operation includes: If the target guidance operation is the third fill operation, then obtain the third content text written by the third fill operation and identify the second file path on the third content text; If the target guidance operation is the export operation, then connect to the second file path and export the solution result of the driving bridge model to the second file path; If the target guidance operation is the third closing operation, then the third interactive sub-interface is closed.

7. The drive axle simulation software interaction method according to claim 1, characterized in that, After automatically executing the simulation guidance operation of the drive axle through the target guidance operation, the following is included: Obtain the node coordinates of the geometric center of the drive axle, the geometric parameters of the drive axle, the test constraints, the load conditions and the loading steps, and generate test parameters based on the node coordinates of the geometric center of the drive axle, the geometric parameters of the drive axle, the test constraints, the load conditions and the loading steps; The simulation control parameters of the simulation model are generated based on the experimental parameters; The simulation model is controlled based on the simulation control parameters to simulate the drive axle.

8. The drive axle simulation software interaction method according to claim 7, characterized in that, The step of generating a simulation model based on the drive axle model and the drive axle parameters includes: Identify the geometric features, connection relationships, and material properties in the drive axle parameters; Based on the aforementioned geometric features, the drive axle model is divided into polyhedral elements; The material properties are assigned to the polyhedral unit, the contact relationship of the polyhedral unit is determined according to the connection relationship, and the coupling type of the polyhedral unit is determined according to the coupling unit type in the test parameters. The simulation model is generated based on the polyhedral elements, the coupling type, and the contact relationship.

9. A drive axle, characterized in that, The drive axle is simulated based on the drive axle simulation software interaction method described in any one of claims 1-8.

10. A vehicle, characterized in that, Includes the drive axle as described in claim 9.

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