基于R-W方法的麦弗逊悬架转向系统优化研究

Optimization Study of McPherson Strut and Steering Mechanism Based on R-W Theory

运用多刚体系统动力学中R-W方法,建立了车辆麦弗逊悬架和转向系统运动方程,导出了系统关联矩阵、通路矩阵、体铰矢量矩阵以及系统约束方程。在此基础上将麦弗逊悬架和转向机构作为一个整体,建立了麦弗逊悬架转向系统优化模型,为获得最佳的优化效果,根据转向系统性能要求创建出了一种连续型权重函数,并以TJ7136U汽车麦弗逊悬架转向系统为实例,进行了优化设计。

With the R-W（Roberson R E and Wittenburg J） method of Dynamics of Multi-body Systems,the motion equation of McPherson strut and steering mechanism for wheeled vehicle was established,systematic incidence matrix,route matrix,body hinge vector matrix and system restraint equation were derived as well.Taking the McPherson strut and the steering mechanism as an integrated kinematics system,its optimization model was established.To obtain the best optimization effect,a continuous weight function was founded according to steering system performance requirement,and optimization design based on the TJ7136U McPherson strut and the steering mechanism was made.