A new dynamic model of high-speed railway vehicle moving on curved tracks

Sen Yung Lee, Yung Chang Cheng

研究成果: Article同行評審

28 引文 斯高帕斯(Scopus)

摘要

A new dynamic model of railway vehicle moving on curved tracks is proposed. In the new model, the motion of the car body is considered and the motion of the truck frame is not restricted by a virtual boundary. Based on the heuristic nonlinear creep model, the nonlinear coupled differential equations of the motion of an eight degrees of freedom car system - considering the lateral displacement and the yaw angle of each wheelset, the truck frame, and the half car body - moving on curved tracks are derived completely. To illustrate the accuracy of the analysis, the limiting cases are examined. It is shown that the influence of the gyroscopic moment of the wheelsets on the critical hunting speed is negligible. In addition, the influences of the suspension parameters, including those losing in the six degrees of freedom system, on the critical hunting speeds evaluated via the linear and the nonlinear creep models are studied and compared.

原文English
文章編號011009
期刊Journal of Vibration and Acoustics, Transactions of the ASME
130
發行號1
DOIs
出版狀態Published - 2008 二月

All Science Journal Classification (ASJC) codes

  • 聲學與超音波
  • 材料力學
  • 機械工業

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