Studying Dynamic Responses of Linear Metro Vehicle/Track Coupling System under Random Irregularity
Linear metro system is developed for urban transportation. In this paper, a detailed vertical-lateral dynamic model of linear metro vehicle/track interaction is presented. The vehicle subsystem is modelled as a multi-body system with 31-degree-of-freedom (31DOF).The track subsystem consists of rail and rigid foundation. The rail is modelled by finite element method, and each rail node has 4DOF.The vertical attractive forces between the linear induction motor (LIM) and its reaction plate (RP) have been modelled as special spring forces varying with the air gap, and the lateral force between them is considered as a constant.A random irregularity excitation is introduced into the system, and the effects of it on the vehicle-track dynamic characteristics of linear metro system are carried out. This work lays down the theoretical foundation for vibration attenuation, noise reduction and track management work in linear metro system.
Urban transportation metro coupling dynamics rail slab irregularity
Qingchao Wei Yashi Deng Yawei F Yongjun N
School of Civil Engineering & Architecture Beijing Jiaotong University Beijing, China
国际会议
2007 Conference on Systems Science, Management Science and System Dynamics(第二届系统科学、管理科学与系统动力学国际会议)
上海
英文
2273-2280
2007-10-19（万方平台首次上网日期，不代表论文的发表时间）