Abstract:
To study the dynamics performance of metro vehicles on different vibration-attenuating tracks, based on the vehicletrack coupling dynamics, a series of metro vehicle-track coupling dynamic models considering different types of vibration-attenuating tracks are established. Then, based on dynamic simulation, the lateral stability of metro vehicles on 4 conventional vibration-attenuating tracks, and the wheelrail dynamic performance on straight and curved lines are compared and analyzed. The results show that the structural parameters of vibration-attenuating track have a great influence on the lateral stability of metro vehicles, while the wheel-rail safety indexes of vehicle on the elastic fastener damping track are lower than those on other kinds of vibration-attenuating slab tracks.