大客车车身骨架轻量化改进设计

Research on Skeleton Weight Lighting for Passenger Car Body

通过对大客车车身的有限元分析,获得车身强度分布状况,在此基础上进行车身骨架的轻量化改进设计。针对ANSYS交互界面好的特点,采用正交法和交互调整相结合的方法进行计算。对一些强度、刚度影响小的构件,直接进行改进,而一些重要构件则安排正交计算,进行不同工况水平下的多次计算,从中寻求轻量化设计方案。计算结果表明,这种方法切实可行,具有明显效果,为大客车的车身骨架提出一个切实可行的轻量化改进方法。

The intensity layout of a passenger car body skelecton is studied by finite element method. Due to the requirement of ANSYS software the authors introduce a complex method of orthogonal calculation and alternant amelioration in analysis calculation. For some less important components, alternant amelioration is suitable for some sensitive components, the orthogonal calculation is better. The final results showed that this combined method is fit for the whole skeleton of car body weight lighting and of high efficiency.