直线导引型前独立悬架及转向杆系的设计与动力学仿真  

Design and Dynamics Simulation of a Rectilinearly Guided Front Independent Suspension and its Steering Linkage

作　　者：朱浩[1] 贾晓红[1] 赵景山[1] 

机构地区：[1]清华大学精密仪器与机械学系,北京100084

出　　处：《汽车工程》2010年第7期611-616,共6页Automotive Engineering

基　　金：国家自然科学基金项目(50805083)资助

摘　　要：研究了一种理论上能做直线导引运动的新型空间机构,基于这一空间机构和相匹配的转向杆系,建立了汽车前独立悬架系统动力学模型。考虑悬架导向机构的结构参数、转向杆系对车轮运动的影响以及橡胶衬套的变形,通过仿真分析,得出了该新型前独立悬架的主要运动学特性参数的变化规律,验证了理论分析结果。与麦弗逊和双叉臂式前悬架主要运动学特性参数进行对比表明,该新型前独立悬架具有优异的运动学性能,与其匹配的转向杆系能最大限度地减小转向干涉。A novel spatial mechanism generating a rectilinear motion in theory is studied. Based on the spatial mechanism and the matched steering linkage, a dynamics model for the front independent suspension of a vehicle is built. With the consideration of the structure parameters of suspension guiding mechanism, theeffects of steering linkage on wheel movement and the deformation of rubber bushing, the changing regularities of major kinematics characteristic parameters of the new front independent suspension are obtained by simulation analysis, and the resuits of theoretical analysis is validated. The comparison with Macpherson and double wishbone front suspensions in terms of key kinematics characteristic parameters show that the new front independent suspension has excellent kinematic performance, and its matching steering linkage can reduce steering interference to the maximum extent.

关 键 词：独立悬架 空间机构 转向杆系 运动学 动力学仿真 

分 类 号：U463.33[机械工程—车辆工程]