半挂汽车列车闭环非线性系统行驶稳定性分析  

Analysis of Tractor-semitrailer Operation Stability under Closed Loop Nonlinear System

作　　者：关志伟[1] 郭墅[2] 许洪国[3] 任有[3] 刘宏飞[3] 

机构地区：[1]天津工程师范学院,天津300222 [2]吉林农业大学,吉林长春130118 [3]吉林大学,吉林长春130025

出　　处：《公路交通科技》2005年第12期144-147,共4页Journal of Highway and Transportation Research and Development

基　　金：国家自然科学基金资助项目(50475008);江苏省汽车工程重点实验室开放基金资助项目(KJS02075)

摘　　要：对半挂汽车列车行驶稳定性的闭环非线性系统进行了研究,建立了半挂汽车列车三自由度非线性模型。以单点预瞄驾驶员模型与半挂汽车列车三自由度非线性模型的耦合系统为研究对象,应用李雅普诺夫一次近似定理,在线性范围内分析了系统参数的特征根轨迹,并在线性范围内分析了驾驶员预瞄时间和轮胎侧偏刚度对临界车速的影响。It was the first time to study closed loop nonlinear system of straight nmning stability of tractor-semitrailer, based on three DOF nonlinear dynamics model of farm tractor-semitrailer. In this thesis, the coupling system of single point preview driver model and three DOF nonlinear model was taken as the studying subject. The first approximation theory of stability was used to analyze the characteristic roots path in linear domain. The effect of driver＇ s foresee-time and the stiffness of tire to critical velocity are analyzed in linear domain

关 键 词：半挂汽车列车 闭环非线性系统 行驶稳定性 线性化 

分 类 号：U469.53[机械工程—车辆工程]