Asynchronous Longitudinal Vibration of the Wheelset System

The longitudinal flutter of the wheelset system has caused abnormal wear wheel-rail and stripping tread surface, resulting in complex dynamic problems locomotive. And asynchronous vibration could bring about different left right wheels when was some non-ideal working conditions. model considering effect bending moment is established to obtain equivalent force, which can carry out response simulation analysis , meanwhile, irrational influencing factors are discussed. results show that stable creep rates lower than critical rate, otherwise, it will produce self-excited vibration. indicate larger displacement center mass lead load system, increasing amplitude wheel on offset side. velocity one with smaller primary stiffness increase, while other decrease. However, eccentric almost no amplitude.