具有滞后非线性的汽车悬架系统中的混沌及控制  

Chaos and control in vehicle suspension system with hysteretic nonlinearity

作　　者：王靖岳[1] 丁旺才[1] 马永靖[1] 

机构地区：[1]兰州交通大学机电工程学院,兰州730070

出　　处：《机械设计与制造》2007年第7期156-158,共3页Machinery Design & Manufacture

摘　　要：由于带有滞后非线性的汽车悬架系统中具有明显的非线性,这直接导致了系统存在分岔与混沌的可能性。为此分析了其在路面拟周期激励作用下发生受迫振动时的运动情况,揭示了该系统存在混沌现象,并利用比例微分控制器对其混沌行为进行了控制,数值模拟表明了该控制方法的有效性与可行性,可为汽车悬架系统的分析研究和优化设计提供理论依据。Vehicle suspension system with hysteretic nonlinearity is a typical nonlinear system Then, the behavior of the system under the quasi-periodic excitation force is analyzed, and the possibility of chaos is proved in the paper. Furthermore, the proportional and differential （PD） controller method is used to control the chaos and guide chaotic motions towards regular motions. Numerical simulation shows the effectiveness and applicability of this method. The results may supply theoretical bases for the analysis and optimal design of the vehicle suspension systems.

关 键 词：汽车悬架 滞后非线性 混沌 比例微分控制器 拟周期激励 

分 类 号：U461[机械工程—车辆工程] O322[交通运输工程—载运工具运用工程]