Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Estimation Study on the Wheel/Rail Adhesion Coefficient of Railway Vehicles Using the Scaled Adhesion Tester

축소 점착시험기를 이용한 휠/레일의 점착계수 추정에 관한 연구

  • Kim, Min Soo (Metropolitan Transportation Research Center, Korea Railroad Research Institute) ;
  • Hee Kim, Kyung (Metropolitan Transportation Research Center, Korea Railroad Research Institute) ;
  • Kwon, Seok Jin (High-Speed Railroad System Research Center, Korea Railroad Research Institute)
  • 김민수 (한국철도기술연구원 광역도시교통연구본부) ;
  • 김경희 (한국철도기술연구원 광역도시교통연구본부) ;
  • 권석진 (한국철도기술연구원 고속철도연구본부)
  • Received : 2015.05.28
  • Accepted : 2015.06.24
  • Published : 2015.07.01
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Abstract

Railway vehicles driven by wheels obtain force required for propulsion and braking by adhesive force between wheels and rails, this adhesive force is determined by multiplying adhesion coefficient of the friction surface by the applied axle load. Because the adhesion coefficient has a peak at certain slip velocity, it is important to determine the maximum values of the friction coefficient on the contact area. But this adhesive phenomenon is not clearly examined or analyzed. Thus we have developed new test procedure using the scaled adhesion test-bench for analyzing of the adhesion coefficient between wheel and rail. This adhesion test equipment is an experimental device that contacts mutually with twin disc which are equivalent to wheels and rails of railway vehicles.

Keywords

References

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Cited by

  1. Development of Novel Composite Powder Friction Modifier for Improving Wheel-rail Adhesion in High-speed Train vol.25, pp.6, 2018, https://doi.org/10.4150/KPMI.2018.25.6.501