CN-121997575-A - Analysis method for vehicle component, electronic device, and storage medium

CN121997575ACN 121997575 ACN121997575 ACN 121997575ACN-121997575-A

Abstract

The application provides an analysis method of a vehicle component, which is applied to the field of vehicle engineering, and is characterized in that an implicit analysis model of the target vehicle component is constructed, a target hole site in the implicit analysis model is determined, a bolt model is constructed on the target hole site, the bolt model is subjected to pretightening force loading and displacement locking to obtain an implicit analysis model of the target vehicle component, the implicit analysis model is subjected to implicit analysis to generate an implicit analysis file of the target vehicle component, the implicit analysis model is subjected to explicit analysis based on the implicit analysis file, and an analysis result of the target vehicle component is generated. According to the method, an implicit analysis model of the target vehicle part is built, a bolt model is arranged at a target hole site, the implicit analysis model is obtained through pretightening force loading and displacement locking, implicit analysis is firstly carried out on the implicit analysis model to generate an implicit analysis file, and then explicit analysis is carried out on the implicit analysis file to generate an analysis result of the target vehicle part, so that analysis accuracy and reliability are improved, and calculation time is shortened.

Inventors

TIAN DANDAN
HUANG ZHIWEI
LIU CHANG
ZHAO XIN
SHAN YANAN
LI NA
JI WEI
SHI LIU
FENG CHANGKAI
LIU YONGJIAN

Assignees

长城汽车股份有限公司

Dates

Publication Date: 20260508
Application Date: 20260112

Claims (10)

1. A method of analyzing a vehicle component, comprising: constructing an implicit analysis model of a target vehicle component, determining a target hole site in the implicit analysis model, and constructing a bolt model on the target hole site; Carrying out pretightening force loading and displacement locking on the bolt model to obtain a implicit analysis model of the target vehicle component; Performing an implicit analysis on the implicit analytical model to generate an implicit analytical file for the target vehicle component, wherein the implicit analysis is used to characterize a bolt pretension analysis of the implicit analytical model, and And performing explicit analysis on the implicit analysis model based on the implicit analysis file to generate an analysis result of the target vehicle component, wherein the explicit analysis is used for representing that the implicit analysis model is analyzed in combination with the result of the bolt pre-tightening analysis.
2. The method of analyzing a vehicle component according to claim 1, wherein the pre-tightening force loading and displacement locking of the bolt model to obtain a explicit and implicit analysis model of the target vehicle component comprises: deleting a beam unit between nuts on the basis of the bolt model, and deleting a pre-tightening force section and corresponding loading arrangement; a connecting unit is established at the center of a main node of the bolt model for connection so as to obtain a target bolt model; and carrying out pretightening force loading and displacement locking on the target bolt model to obtain the implicit analysis model.
3. The method of analyzing a vehicle component according to claim 2, wherein creating a connection unit at a center of a main node of the bolt model for connection includes: defining behavior characteristics of the connection unit, wherein the behavior characteristics comprise degrees of freedom types and constitutive relations; And determining a target direction of the connecting unit, wherein the target direction is an axial direction.
4. The method of analyzing a vehicle component according to claim 2, wherein the pre-tightening force loading and displacement locking of the target bolt model includes: applying a preset force load to the connecting unit to perform the pre-tightening force loading, wherein the preset force load is a negative value; a preset displacement/motion constraint is applied to the connection unit for the displacement locking.
5. The method of analyzing a vehicle component according to claim 4, wherein the pre-tightening force loading and displacement locking of the target hole site based on the bolt model further comprises: And establishing contact relation for all the connection surfaces of the connection units in the target bolt model, and configuring contact attributes matched with actual working conditions.
6. The method of analyzing a vehicle component according to claim 1, wherein the explicitly analyzing the explicit analysis model based on the implicit analysis file to generate an analysis result of the target vehicle component comprises: Analyzing the implicit analysis file to obtain unit set grids and stress data in the implicit analysis model; Extracting connection assembly information in the explicit analysis model, and generating an explicit solving file according to the unit set grid, the stress data and the connection assembly information; And generating an analysis result of the target vehicle component according to the explicit solving file and the implicit analyzing file.
7. The method of analyzing a vehicle component according to claim 6, wherein generating an analysis result of the target vehicle component from the explicit solution file and the implicit analysis file comprises: Adjusting the explicit solution file according to the implicit analysis file to generate a target solution file; And performing computational analysis on the target solution file to generate an analysis result of the target vehicle component, wherein the analysis result comprises stress, strain and displacement information of a unit.
8. The method of analyzing a vehicle component according to claim 1, characterized by further comprising: inputting the analysis result into a risk assessment model to obtain a state risk value of the target vehicle component; And submitting the analysis result to a corresponding server in response to the state risk value being greater than a preset risk threshold, so that the server optimizes the target vehicle component according to the analysis result.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and capable of running on the processor, the processor executing the program to implement the method of analyzing a vehicle component according to any one of claims 1-8.
10. A computer-readable storage medium, on which a computer program is stored, characterized in that the program is executed by a processor for implementing the analysis method of a vehicle component according to any one of claims 1-8.

Description

Analysis method for vehicle component, electronic device, and storage medium Technical Field The present application relates to the field of vehicle engineering, and more particularly, to a method of analyzing a vehicle component, an electronic apparatus, and a storage medium in the field of vehicle engineering. Background In the field of vehicle engineering, finite element analysis is widely applied to structural design and performance evaluation to promote safety, reliability and economy of vehicles. In the related art, the structure and the performance are evaluated through a display analysis method, but when the method is used for processing stress distribution under complex load, the stress distortion phenomenon often occurs, and the problems of inaccurate analysis result and poor reliability exist. Disclosure of Invention The application provides an analysis method, electronic equipment and a computer readable storage medium of a vehicle part, wherein the method is characterized in that an implicit analysis model of a target vehicle part is built, a bolt model is arranged at a target hole site, a pre-tightening force loading and displacement locking are carried out to obtain an implicit analysis model, an implicit analysis file is generated by carrying out implicit analysis on the implicit analysis model, and then an explicit analysis is carried out on the implicit analysis file to generate an analysis result of the target vehicle part, so that the analysis accuracy and reliability are improved, the calculation time is shortened, and the calculation efficiency is improved. In a first aspect, an analysis method of a vehicle component is provided, the method comprising the steps of constructing an implicit analysis model of the target vehicle component, determining a target hole site in the implicit analysis model, and constructing a bolt model on the target hole site, wherein the implicit analysis is used for representing bolt pre-tightening analysis of the implicit analysis model, loading pre-tightening force and locking displacement of the bolt model to obtain the implicit analysis model of the target vehicle component, performing implicit analysis on the implicit analysis model to generate an implicit analysis file of the target vehicle component, and performing explicit analysis on the implicit analysis model based on the implicit analysis file to generate an analysis result of the target vehicle component, wherein the explicit analysis is used for representing analysis of the implicit analysis model in combination with the result of the bolt pre-tightening analysis. Through the technical scheme, the implicit analysis model can be obtained by constructing the implicit analysis model of the target vehicle part and loading and locking the bolt model at the target hole site through the pretightening force, the implicit analysis is firstly carried out on the implicit analysis model to generate an implicit analysis file, and then the explicit analysis is carried out on the implicit analysis file to generate an analysis result of the target vehicle part, so that the analysis accuracy and reliability are improved, the calculation time is shortened, and the calculation efficiency is improved. In combination with the first aspect, in some possible implementation manners, the method for loading the pre-tightening force and locking the displacement of the bolt model to obtain the implicit analysis model of the target vehicle component comprises the steps of deleting a beam unit between a nut and a nut on the basis of the bolt model, deleting a pre-tightening force section and corresponding loading setting, creating a connecting unit at the center of a main node of the bolt model to connect to obtain the target bolt model, and loading the pre-tightening force and locking the displacement of the target bolt model to obtain the implicit analysis model. Through the technical scheme, the method can apply targeted optimization and load constraint on the bolt model, provide a model foundation with strong adaptability for implicit joint analysis, delete a unit and old pretightening force setting for adapting single implicit analysis between nuts and nuts, avoid the interference of an initial structure and parameters on explicit load transfer logic, solve the problem of analysis deviation caused by structural redundancy of a traditional model, construct a connecting unit in the center of a main node to form a target bolt model, accurately simulate the actual stress characteristic of the bolt, lay a stable structural foundation for subsequent loading, and enable the model to not only keep the accurate load state required by implicit analysis, but also have the structural stability required by explicit analysis by pretightening force loading and displacement locking, and effectively link up two analysis modes. The finally obtained explicit and implicit analysis model can reduce the problem of difficult convergence of su