Multi-Condition Stress Analysis of Commercial Vehicle Drive Axle Housing Based on Workbench

驱动桥桥壳作为汽车的主要承载构件，对整车安全性及可靠性有较大影响。因此，在车辆正常行驶中，应确保驱动桥壳满足必要的力学性能。论文利用三维建模软件INVENTOR建立好驱动桥壳的三维模型，在ANSYS的材料数据库中，定义好三维模型需要调用的材料属性。然后在软件中将定义好的材料属性赋予各个零件，随后，依据四种典型工况的载荷和约束施加情况，对驱动桥壳进行静力学分析，得出最大应力和最大变形的具体数值和对应位置。随后，进行驱动桥壳的自由模态分析，检验驱动桥壳的动态特性，为驱动桥壳的设计和优化提供参考。As a primary load-bearing component of vehicles, the drive axle housing significantly influences the safety and reliability of the entire vehicle. Therefore, during normal vehicle operation, it is essential to ensure that the drive axle housing meets the required mechanical performance standards. This paper uses the 3D modeling software INVENTOR to establish a 3D model of the drive axle housing and defines the material properties needed for the model using ANSYS’s material database. The defined material properties are then assigned to each component in WORKBENCH. Subsequently, based on the load and constraint application conditions for four typical operating scenarios, a static analysis is performed on the drive axle housing to obtain the specific values of maximum stress and maximum deformation, as well as their corresponding locations. A free modal analysis is then conducted to evaluate the dynamic characteristics of the drive axle housing, providing a reference for its design and optimization.