Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Design Method of Railway Wheel Profile with Objective Function of Eqivalent Conicity

등가답면구배를 목적함수로 하는 차륜답면형상 설계기법

  • Hur, Hyun-Moo (Vehicle Dynamics & Propulsion System Research Department, KRRI) ;
  • You, Won-Hee (Vehicle Dynamics & Propulsion System Research Department, KRRI) ;
  • Park, Joon-Hyuk (Vehicle Dynamics & Propulsion System Research Department, KRRI) ;
  • Kim, Min-Soo (Vehicle Dynamics & Propulsion System Research Department, KRRI)
  • 허현무 (한국철도기술연구원 주행추진연구실) ;
  • 유원희 (한국철도기술연구원 주행추진연구실) ;
  • 박준혁 (한국철도기술연구원 주행추진연구실) ;
  • 김민수 (한국철도기술연구원 주행추진연구실)
  • Received : 2010.03.08
  • Accepted : 2010.06.29
  • Published : 2010.08.01
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Abstract

A design method of railway wheel profile with objective function of equivalent conicity considering wheel dimension constraint, two points contact problem between wheel and rail was proposed. New design method shows good results. New wheel profile generated from optimization process shows better dynamic performance compared with initial profile as the purpose of wheel profile design. And to verify the design method with testing the stability of new wheel profile, we conducted a critical speed test for new wheel profile using scale model applied scaling method of railway vehicle dynamics. The result of critical speed test show good agreement with that of numerical analysis. From the above results, it is seen that the design method with objective function of equivalent conicity is feasible and it could be applied to design new wheel profile efficiently.

Keywords

References

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