基于ANSYS的差速器壳体有限元分析

Finite Element Analysis of Differential Housing Based on ANSYS

摘要: 差速器壳体不仅是差速器中其他零件的安装基础，也是主减速器从动件的一部分，它的质量和结构会直接影响到整个差速器和整车的工作性能，但因为其结构比较复杂，受力情况也比较复杂，运用传统的理论计算公式难以计算处其强度和刚度是否满足设计要求。因此，本文运用ANSYS软件对差速器壳体进行有限元分析，首先校核其强度和刚度在不同工况下是否满足要求，再运用ANSYS的形状优化模块，在壳体强度和刚度满足要求的情况下，对差速器壳体进行质量优化处理，最后通过有限元分析方法验证了壳体的优化效果，且经检验，优化结果合理。

Abstract: The installation of other parts in differential shell is not only a differential basis, is also part of the main reducer follower, it will directly affect the quality and structure of the whole differential and the vehicle performance, but because of its complex structure, stress distribution is more complex, using the theory of the traditional calculation formula is hard to calculate whether the strength and stiffness meet the design requirements. Therefore, this paper utilizes ANSYS software to conduct finite element analysis on the differential shell. Firstly, it verifies whether the strength and stiffness of the shell meet the requirements under different operating conditions. Then, the shape optimization module of ANSYS is employed to optimize the mass of the differential shell while ensuring that the strength and stiffness requirements are met. Finally, the optimization effect of the casing was verified through finite element analysis, and it has been confirmed that the optimization results are reasonable after inspection.