Research on Dynamic Stability of the Vehicle with Coupled Wheelsets

In this paper,a dynamic calculating model of the vehicle with coupled wheelsets is established.The dynamic stability of the vehicle with coupled wheelsets is calculated by using numerical simulation methods.Laws of coupled coefficient on stability of vehicle and restoration capability of the wheelsets are found.By comparing lateral displacement and critical speed of vehicle with traditional fixed wheelsets,independently rotating wheels or magnetic fluid coupled wheelsets,conclusions are drawn that the use of magnetic fluid coupled wheelsets with reasonable coupled coefficient can improve stability and restoration capability of the wheelsets.