Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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A Study on the Eigenmode Characteristics by Changing Damping Parameters of Secondary Suspension (Damper) on Railway Vehicles

철도차량 이차현가장치 댐퍼 매개변수 변화에 따른 고유모드 특성에 대한 연구

  • Shin, Yu-Jeong (Dept. of Future Traffic System University of Science & Technology) ;
  • You, Won-Hee (Vehicle Dynamics Research Dept. Korea Railroad Research Institute) ;
  • Park, Joon-Hyuk (Vehicle Dynamics Research Dept. Korea Railroad Research Institute) ;
  • Hur, Hyun-Moo (Vehicle Dynamics Research Dept. Korea Railroad Research Institute)
  • 신유정 (과학기술연합대학교 미래첨단교통시스템공학과) ;
  • 유원희 (한국철도기술연구원 주행추진연구실) ;
  • 박준혁 (한국철도기술연구원 주행추진연구실) ;
  • 허현무 (한국철도기술연구원 주행추진연구실)
  • Received : 2011.01.06
  • Accepted : 2011.04.12
  • Published : 2011.07.01
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Abstract

Railway vehicles are capable of indicating several types of instability. This phenomenon, which is called hunting motion, is a self excited lateral oscillation that is caused by the running velocity of the vehicle and wheel frail interactive forces. The interactive forces act to change effectively the damping characteristics of railway vehicle systems. This paper will show the impact of instability on the transfer function behavior using damping characteristics of secondary suspension. The vehicle dynamics are modeled using a 17 degree of freedom considering linear wheel/rail contact. The paper deals with certain condition of the damper characteristics that one is about various damping coefficient and another is equipped damper direction.

Keywords

References

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