重载货车驱动桥壳有限元分析

Analysis on the Heavy Truck Drive Axle Housing With the Finite Element Method

随着中国国民经济高速发展,汽车工业已迈入新时代,重型载货车的需求量大大增加,对重型汽车的性能要求越来越高,这使得传统的驱动桥桥壳设计计算方法已经无法满足现代汽车设计的要求。由于驱动桥桥壳是汽车的重要承载件和传动件,是维系车辆运行安全的关键部件,桥壳的性能和疲劳寿命直接影响汽车的有效使用寿命。因此,驱动桥壳应具有足够的强度、刚度和良好的疲劳耐久特性。本论文以某货车的驱动桥壳为研究对象,提出了桥壳几何模型的简化方法,利用PRO/E建模软件建立了桥壳的有限元计算模型,并联合有限元分析软件ANSYS对桥壳进行了强度计算和有限元模拟分析,得出了零件的应力和变形分布,验证了设计的合理性,为汽车驱动桥的强度评价提供了相关数据。

With the Chinese economic high speed development its automorive industry runs fast.The demand of heavy truck increases greatly,the ferfonnance of heavy truck is reqaired more highly,so the traditional design of thuels drive axle housing coaldn＇t satisfy the requirement of modem design.Since the axle housing is an important component of the vehicle,its function and fatigue life have direct impact on the effective service life of truck.There fore,the axle housing should have sufficient strength,stiffness and well durable fatigue property.Taking a truck drive axle housing as research object,its simplified geometric model is presented in this paper.Using PRO/E modeling software the finite element model is built,and then a strength calculation and finite element simulation analysis is comducted by.At last,it obtained the stress distribution and parts deformation,which verified the design is reasonable,and also provided the relevant data for strength evaluation of the truck drive axle housing.