摘要
为半挂汽车列车建立了简化的四自由度单轨模型,并在其上分析了两个重要结构参数,即牵引点和挂车质心位置对半挂汽车列车横向稳定性的影响规律。在此基础上,采用主元特征向量分析方法详细探讨了半挂汽车列车"折叠"和"横向摆振"两种常见的横向失稳现象的发生机理,分析和对比了牵引角和牵引角速度输出反馈对半挂汽车列车"折叠"和"横向摆振"失稳的镇定效果。
A simplified 4 DOF single-track model for tractor-semitrailer combination is built,on which the effects of two key parameters,i.e.the positions of hitch point and the mass center of semitrailer,on the lateral stability of tractor-semitrailer combination are analyzed.Based on this,the mechanisms of two common instability phenomena i.e.＇jackknifing＇ and ＇lateral sway＇ are investigated in detail by using main component of eigenvector（MCE） method.Finally the stabilization effects of the feedback of hitch angle and hitch angle rate on ＇jackknifing＇ and ＇lateral sway＇ are analyzed and compared respectively.
出处
《汽车工程》
EI
CSCD
北大核心
2011年第6期486-492,共7页
Automotive Engineering
基金
国家自然科学基金项目(51005109)
云南省应用基础研究面上项目(2010ZC029)资助
关键词
半挂汽车列车
横向稳定性
汽车主动安全
tractor-semitrailer combination
lateral stability
vehicle active safety
