Proceedings of the KSR Conference (한국철도학회:학술대회논문집)
- 2006.11b
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- Pages.1203-1209
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- 2006
A study on 1D modeling techniques for collision analysis of train coupling
열차의 1차원 연결 해석 모델링 기법 연구
Abstract
One dimensional collision analysis is often used to simulate a train-to-train coupling or collision accident. But there are various numerical modeling techniques utilized for dynamic models of rolling stocks such as a lumped-spring-mass model or a bar-mass model. In rolling stock industries, a lumped-spring-mass model is mainly applied without consideration of bogie attachments separately. In this case, a dynamic stiffness coefficient is introduced to compensate the overestimated car mass effects due to the linkage stiffness of bogies and seats. In this paper, the effects of dynamic stiffness coefficients and wheel-rail friction coefficients were studied by simulating a bar-mass model with bogie attachments separately.
Keywords