Proceedings of the KSR Conference (한국철도학회:학술대회논문집)

The Korean Society for Railway (한국철도학회)
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Modeling and Hunting Stability Analysis of High-Speed EMU Using Lumped Parameter Dynamic Model

분산형 고속전철의 동역학적 모델링 및 안정성 해석

  • 이래민 (성균관대학교, 기계공학과) ;
  • 구자춘 (성균관대학교, 기계공학과) ;
  • 최연선 (성균관대학교, 기계공학과) ;
  • 이상원 (성균관대학교, 기계공학과)
  • Published : 2010.06.10
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Abstract

This paper discusses the numerical study on the stability of the high-speed EMU by developing its lumped parameter model including the effect of the creepage. The 6, 10 and 14 degrees-of-freedom (DOF) lumper parameter dynamic models are developed and the critical hunting speeds calculated from each model via Matlab software are analyzed and compared. It is demonstrated that the critical hunting speeds decrease while the degrees-of-freedom increase. In addition, the parametric study is conducted to extract major design parameters to influence on the stability of the high-speed EMU.

Keywords