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A Wheel Wear Analysis of Railway Vehicle on a Curved Section

곡선 구간에서 철도 차량 휠의 마모 특성 해석

  • Kang, Juseok (Dept. of Railway Vehicle System Engineering, Korea Nat'l Univ. of Transportation)
  • 강주석 (한국교통대학교 철도차량시스템공학과)
  • Received : 2015.09.14
  • Accepted : 2016.04.14
  • Published : 2016.06.01

Abstract

The wheel wear of a railway vehicle is mainly generated when maneuvering on a curved track. The change in the wheel profile affects the dynamic stability of the vehicle. In this analysis, the wheel wear volume was calculated while changing the velocity and radius of the curve to analyze the wear characteristics of a wheel at a curved section. The wear index was calculated from a vehicle dynamic analysis based on a multibody dynamics analysis and wear volume from a wear model by British Rail Research. The wear volume at a radius of 300 m is dominant compared with other radii. The wear volume was calculated by assigning different coefficients of friction to the tread and flange of the wheel to investigate the effect of lubrication on the wear characteristics. The effect of the improvement by lubrication is calculated by varying the radius of the track, and is assessed on an actual urban railway section.

Acknowledgement

Supported by : 한국연구재단

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