Finite Element Analysis on the Stress Distributions in Rail-Wheel Contacts of High Speed Trains

고속전철용 레일-휠 접촉에서 응력분포에 관한 유한요소해석

  • 김청균 (홍익대 트리아볼로지 연구센터) ;
  • 김기환 (한국철도기술연구원)
  • Published : 1997.09.01


The numerical results on the stress distributions of rail-wheel contact problems are presented for three models in a high-speed rail system. These models which have straight and tapered (1:40 and 1:20) contact geometries between the wheelset and rail are analyzed using the finite element approach. From the simulation results we found that the tapered geometry (1:20) of railwheel contact base line showed very stable contact stress distributions for a whole contact position between the wheel and rail in a curved rail section. The FEM computed results may present an optimized slope geometry of rail-wheel contact in a high-speed railway system.


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