Research for a factor affecting creep force at Wheel/Rail contact surface of Roller Rig

모의주행성능시험기의 차륜/레일 접촉부 CREEP FORCE에 미치는 영향 인자에 대한 연구

  • 전승우 (과학기술연합대학원대학교, 미래첨단교통시스템공학) ;
  • 구동회 (한국철도기술연구원 차륜궤도연구실) ;
  • 김재철 (한국철도기술연구원 차륜궤도연구실) ;
  • 황석렬 (국제대학 자동차학부)
  • Published : 2008.11.13

Abstract

Creep force is one of the only appeared at conventional train which used to be driven by metallic wheel and rail contact. Due to the elastic deformation of wheel/rail contact patch by the weights of wheel and all the components related to it, creep force generates and becomes to the decision factor of critical speed of bogie(or railway vehicle) which is the criteria of avoiding vehicle to be unstable. There are many kind of factors which affect generation of creep force at a wheel/rail contact surface such as viscosity of contact patch, velocity, wheel and rail geometric profile, mechanical properties of wheel and rail. This paper concentrates on a wheelset simple 2 DOF Equation of Motion being exerted. From the simple numerical analysis using linear solution about getting creep force some factors could find roughly. Among the factors geometric parameter could be the one of most important for this study. In the future we'll prolong the range of study to find out method of measuring creep force easily.

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