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Stability Evaluation of the Railway Bogie According to the Tread Inclination of Wheel Profile Using Scale Model

축소모델을 이용한 차륜답면형상 답면구배에 따른 안정성 평가

  • 허현무 (한국철도기술연구원 주행추진연구실) ;
  • 유원희 (한국철도기술연구원 주행추진연구실) ;
  • 김남포 (한국철도기술연구원 주행추진연구실) ;
  • 박태원 (아주대학교 기계공학과)
  • Published : 2009.10.01

Abstract

Numerical simulation and experimental study to evaluate the critical speed of the railway bogie according to the tread inclination of wheel profile were conducted using 1/5 scale model. It has been shown that the results of the critical speed analysis for the scale bogie model is very close to the test results using scale bogie model and the critical speed is decreased in proportion to the increase of equivalent conicity of wheel profile. Results of this study show that the scale model could be applied to research area relating to vehicle stability as an alternative to overcome the experimental problems caused by full scale test on the roller rig.

Keywords

Wheel Profile;Tread Inclination;Equivalent Conicity;Stability;Critical Speed;Scale Model

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