Modelling and Analysis of the Nonlinear Dynamics of the Transrapid and Its Guideway

In the development and optimization of magnetic levitation trains, realistic simulation models of the mechanic, electromagnetic and electronic subsystems both onboard and in the guideway are crucial factors. In this contribution we present coupled mechanical-electromagnetic models of the control subsystems, magnet subsystems, a lateral cross-section and a vertical dynamics model, modeled by the multibody systems method. The models are verified using simulations, eigenmode analysis and displacement measurements from train passages on a test track. The models are suitable e.g. for simulating the effects of train passages on the ground and they are applied to the analysis of a novel guideway support. It is shown that ground vibrations caused by the vehicle can be significantly reduced by a flexible spring-mass system as support for the girders.