접촉 강성을 고려헌 차량-레일계의 연성 진동 해석
A Couple Vibration Analysis of Railway Track System with Consideration of Contact Stiffness
Corrugation of railway track can be caused by the various dynamic behaviors of traveling wheels and track. In this paper, the coupled vibrations of traveling wheel and railway track are analyzed as the cause of corrugations. To analyze the coupled vibration, the track supported by the sleepers and the traveling wheels are identified to the elastically supported infinite beam and the spring-mass system which runs at constant speed. The Hertzian contact spring is considered between the infinite beam and spring-mass system are calculated. The cause and development of rail corrugation are discussed in the view point of contact force fluctuation affected by the elastic supports and the corrugated surface profile on the track. By the obtained results, the possibilities of resonance are checked between the excitation by the corrugated surface profile and the natural frequency of contact spring-mass system. It may be thought to a development of railway corrugation.
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이 논문을 인용한 문헌 (1)
- 1998. "Dynamics Responses of Railway Bridges for Track Irregularities" 전산 구조 공학 = Journal of the Computational Structural Engineering Institute of Korea, 11(3): 253~262
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