滑柱摆臂式悬架空间运动分析

Spatial Motion Analysis of A Mcpherson Strut Suspension

应用多刚体系统动力学的理论及图论的方法来建立汽车滑柱摆臂式悬架的动力学模型,并引入约束方程将此悬架系统简化为树形系统。在此基础上推导出相应的运动学关系式,并分析了车轮跳动时的主销内倾、后倾、车轮外倾等前轮定位参数的变化及其对悬架特性的影响。

In terms of the dynamic theory of a multirigid bodies system and the graphics theory, in this paper a dynamic model for automotive Mc Pherson strut suspension has been established through simplifying this suspension as a tree-shaped system coorperated with constraint equations. The relevant kinematic equations are hereupon derived. In addition, the variations in front wheel alignment parameters during wheel bouncing, such as king pin inclination, castor angle and wheel camber, etc., and their effect on the suspension characteristics are also analysed.