The Research Status of Wheel-Rail Interaction Study under the Seismic Load Condition

In the analysis of dynamic coupling interaction between wheel and rail, there are two kinds of models be widely applied, the Simplified dynamic model and the non-simplified dynamic model. And the calculation principles of these two models have been given in this thesis. At the same time, the calculation advantages and disadvantages also have been introduced. On the other hand, all the various factors which will affect the traffic safety have been summarized in this article, some measures also have been emphasized to avoid the derailment accident when the disaster is taking place.