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

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A simplified MBS 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 multi-point 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 in a stand-alone application. 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.
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Keywords: MBS vehicle model; steady state behaviour of railway vehicles in curved track; wheel/rail wear; wheelset relative kinematics

Document Type: Research Article

Affiliations: 1: Competence Center - Das Virtuelle Fahrzeug Forschungsgesellschaft mbH, Graz, Austria 2: Institute of Applied Mechanics, Technical University of Graz, Graz, Austria 3: Siemens Transportation Systems GmbH & Co KG, Graz, Austria

Publication date: 2008-09-01

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