Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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A Proposal of Wheel/Rail Contact Model for Friction Control

  • Matsumoto Kosuke (Institute of Industrial Science, The University of Tokyo, (Tokyo Metro Co., Ltd.)) ;
  • Suda Yoshihiro (Center of Collaborative Research & Institute of Industrial Science, The University of Tokyo) ;
  • Komine Hisanao (Institute of Industrial Science, The University of Tokyo) ;
  • Nakai Takuji (Railway Bogie Track Manufacturing Department, Sumitomo Metal Industries) ;
  • Tomeoka Masao (Rolling Stock Department, Tokyo Metro Co., Ltd.) ;
  • Shimizu Kunihito (Rolling Stock Department, Tokyo Metro Co., Ltd.) ;
  • Tanimoto Masuhisa (Railway Engineering Department, Sumitomo Metal Technology, INC.) ;
  • Kishimoto Yasushi (Railway Engineering Department, Sumitomo Metal Technology, INC.) ;
  • Fujii Takashi (Institute of Industrial Science, The University of Tokyo)
  • Published : 2005.01.01
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Abstract

Controlling the friction between wheel and rail is direct and very effective measures to improve the curving performances of railway trucks, because the curving performances depend much on friction characteristics. Authors have proposed a method, 'friction control', which utilizes friction modifier ($KELTRACK^{TM}$ HPF) with onboard spraying system. With the method, not only friction coefficient, but also friction characteristics can be controlled as expected. In this study, MBD simulation is very valuable tool to foresee the effect of the control in advance of experiment with real car. And the creep characteristics of wheel/rail contact with the friction modifier takes very important role in the simulation. In this paper, authors propose a theoretical model of wheel/rail contact condition considering the creep characteristics of friction modifier, which is derived the application of principle tribological theories.

Keywords

References

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