某型汽车后桥壳的有限元分析

在对某型汽车整车简化模型进行典型工况受力分析的基础上,应用三维设计软件UGnx2.0建立了该车后桥壳的三维模型,并采用有限元分析方法对其结构作了分析计算。发现该后桥壳在交变应力作用下存在易裂的缺陷。分析了这一缺陷产生的原因,提出了改进的措施,并经计算证明这些改进措施是可行且有效的,可供改进该型汽车后桥壳的设计方案时参考。

Finite Element Analysis on the Rear Axle Housing of Vehicle

On the basis of analyzing the typical operating conditions of a simplified vehicle model,3D Model of the rear axle housing was built by using a 3D design software UGnx2.0,and calculated its structure with the method of finite element analysis.In the effect of alternating stress,the rear axle housing was found existing crack defects.The reason of defects existing is analyzed.The improvement measures are put forward.It is calculated to prove that the measures are feasible and effective,which can provide reference for the design of that rear axle housing.