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
出处
《公路交通科技》
CAS
CSCD
北大核心
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)
关键词
半挂汽车列车
闭环非线性系统
行驶稳定性
线性化
Tractor-semitrailer
Closed loop nonlinear system
Running stability
Linearization
