摘要
以1动2拖动车组为例,建立了列车系统动力学模型。基于常微分方程的一次近似理论和H pf分叉理论,分析了车辆之间连接刚度和阻尼对列车系统蛇行运动的H pf分叉速度即临界速度的影响,研究了列车系统的极限环振动。结果表明,列车系统的蛇行临界速度要稍低于车辆系统,车间连接刚度和阻尼对列车系统的临界速度有一定的影响。本文的工作为列车系统的蛇行稳定性研究提供了有效的方法。
The dynamic model of a trainset is set up with the example of 1 motor car and 2 trailing cars. Based on the first order approximation theory of the ordinary differential equations and Hpf bifurcation theory, the influence of the connection stiffness and damping coefficient between cars on the Hpf bifurcation speed of the trainset, i.e. the linear critical speed, is studied; the bifurcated limit cycles of the train system is also investigated. The numerical results show that the critical hunting speed of the train system is a little lower than that of the single car system and the connection stiffness and damping between cars have some effect on the critical speed of the train system. The work of this paper provides an efficient method for the hunting stability analysis of the train system.
出处
《铁道学报》
EI
CAS
CSCD
北大核心
2004年第5期41-45,共5页
Journal of the China Railway Society
基金
国家自然科学基金项目(50175094)
西南交通大学首届博士研究生创新基金项目
