Modeling and dynamics analysis of 70% low-floor light rail vehicles

This paper established the dynamics model of 70% low-floor light rail vehicles, and gave the ways of dealing with the key parts, such as non-driven bogie, independent wheel and joint structure of bodies, etc. Then dynamics performances of the vehicle system, which includes stability, curve passing, ride comfort, etc, were carried out by the mutil-body dynamics analysis software SIMPACK. The numerical results indicate that the vehicle system has good hunting stability, curving performance and ride comfort, and it can meet the demand of operation on tracks.