The influence of the wheelsets' relative kinematics of railway vehicles on wheel/rail wear in curved track

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The influence of the wheelsets' relative kinematics of railway vehicles on wheel/rail wear in curved track

Rosenberger, Martin / Dietmaier, Peter / Payer, Johann / Six, Klaus

A simplified MBS (Multiple Body System) vehicle model is developed to investigate the influence of the wheelsets relative kinematics of railway vehicles on wheel/rail wear in curved track. The objective is to provide a model on which different vehicle configurations can be mapped. Rigid body contact and therefore multipoint contact are taken into account To determine wheel/rail wear a wear model based on Fleischer is applied. The steady state behaviour of the vehicle model in curved track is calculated. The leading bogie of a six axle vehicle is mapped on the model. The results of the developed model are compared with transient dynamic MBS simulations of the overall vehicle which demonstrates a very high level of correspondence. A wear map is calculated using the relative kinematics of the wheelsets of a two axle vehicle and the differences in wheel/rail wear between a radial aligned vehicle and the optimal aligned vehicle are outlined.