A combined multibody and finite element approach is given to solve the dynamic interaction of a Shinkansen train (high-speed train in Japan) and the railway structure including post-derailment during an earthquake. The motion of the train is expressed in multibody dynamics. Efficient mechanical models to express interactions between wheel and track structure including post-derailment are given. The motion of a railway structure is modeled with various finite elements and also with rail and track elements expressed by multibody dynamics and FEM. Based on the present method the computer program has been developed for the dynamic interaction of a Shinkansen train and railway structure including post derailment during an earthquake. Numerical examples are demonstrated.
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