转向传动机构间隙对车辆摆振系统动力学行为的影响分析  

Influence of steering linkage clearance on dynamic behavior of vehicle shimmy system

作　　者：卢剑伟[1] 陈昊[1] 辛加运[1] 刘梦军 

机构地区：[1]合肥工业大学机械与汽车工程学院 [2]Data Storage Institute,A* STAR Singapore 230051

出　　处：《振动与冲击》2013年第16期171-175,共5页Journal of Vibration and Shock

基　　金：国家自然科学基金项目(50975071);教育部新世纪优秀人才支持计划项目(NCET-10-0358)

摘　　要：对考虑转向传动机构间隙的车辆摆振系统动力学行为进行了分析。基于非线性系统动力学相关理论,应用二状态模型描述横拉杆和转向梯形臂之间的间隙副接触状态,建立了考虑转向传动机构间隙的四自由度摆振系统动力学模型。对上述模型进行数值分析,借助相平面、Poincaré映射及分岔特性等分析了间隙对于车辆摆振系统动力学行为的影响,为更好地实现车辆摆振控制提供了理论支持。The dynamic behavior of vehicle shimmy system in consideration of steering linkage clearance was analyzed.Based on nonlinear dynamic theories,the movement pair clearance between the steering tie rod and tie rod arm was described with Hertz model,and a 4 DOF dynamic model of vehicle shimmy system in consideration of steering linkage clearance was presented.The dynamic behaviors of vehicle shimmy system with clearance were analyzed by using phase portrait,Poincaré map,and bifurcation diagram,which provide theoretical basis for the attenuation of vehicle shimmy.

关 键 词：转向系 摆振 间隙 非线性动力学 

分 类 号：TH132[机械工程—机械制造及自动化]