Song Ying
School of Transportation Institute, Shijiazhuang Tiedao University, Shijiazhuang, 050043, China
Wang Zhi-Chen
School of Transportation Institute, Shijiazhuang Tiedao University, Shijiazhuang, 050043, China
Shen Ying-Ming
School of Transportation Institute, Shijiazhuang Tiedao University, Shijiazhuang, 050043, China
ABSTRACT
By means of the vehicle-track coupled dynamics theory,a coupling dynamics model of railway vehicle with oval wheels and track is built and a new method is presented to describe wheel ovalization on high speed trains. The effect of wheel ovalization on the dynamic behavior of the vehicle system was investigated. The results show that wheel/rail impact force caused by the wheel ovalization depends greatly on the combinations of the wheel ovalization extent,the train speed,and the phase angle of the ovalization of the two side wheels of the wheel set. The safety threshold of wheel ovalization at vehicle speed of 250 km/h is determined according to the traditional criterion of wheelset loading reduction for safely running estimation.
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How to cite this article
Song Ying, Wang Zhi-Chen and Shen Ying-Ming, 2013. Research on the Safety Threshold of High Speed Railway Wheel Ovalization
Based on Numerical Simulation. Information Technology Journal, 12: 3245-3248.
DOI: 10.3923/itj.2013.3245.3248
URL: https://scialert.net/abstract/?doi=itj.2013.3245.3248
DOI: 10.3923/itj.2013.3245.3248
URL: https://scialert.net/abstract/?doi=itj.2013.3245.3248
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