Stability analysis of high-speed railway vehicle using half-car model

Yung Chang Cheng, Sen Yung Lee

Research output: Contribution to journalArticle

7 Citations (Scopus)


A dynamic model of a railway vehicle moving on tangent tracks is developed. The governing differential equations of motion for a 12-DOF half-car system are derived with incorporation of the lateral and yaw movements of each wheel set, the lateral and vertical displacements, and the roll and yaw movements of the truck frame and the half-car body. The effects of physical parameters on critical hunting speeds in the 6-DOF, 8-DOF and 12-DOF models are also investigated. The effect of certain physical parameters, which were not considered in the 6-DOF model, is investigated for wheels of different conicities.

Original languageEnglish
Pages (from-to)139-158
Number of pages20
JournalInternational Journal of Heavy Vehicle Systems
Issue number2
Publication statusPublished - 2010 May

All Science Journal Classification (ASJC) codes

  • Automotive Engineering
  • Mechanical Engineering

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