Proceedings of the KSR Conference (한국철도학회:학술대회논문집)
- 2009.05b
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- Pages.233-237
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- 2009
A Study on Techniques for Evaluating Collision Acceleration of Rollingstock
열차의 충돌가속도 크기를 평가하기 위한 방법 연구
- Published : 2009.05.21
Abstract
In this study, we suggest that several approaches to evaluate the collision acceleration value of a car in the article 35 and the guideline 16 of Korean rolling stock safety regulation. There are various methods to evaluate collision acceleration such as; a displacement comparison method by the double integration of filtered acceleration data, a velocity comparison method by the integration of filtered acceleration data, an analysis method of time-velocity curve, or a differential method of time-velocity curve. We compared these methods one another using 1D dynamic simulation model composed of nonlinear dampers, springs and bars, and masses. Also, we applied these methods to a hybrid model, which is made of 3D shell element model and 2D collision dynamics model, in order to evaluate whether 1D force-displacement curve modeling for energy absorbing structures have an effect on the collision acceleration levels or not.
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