Enhanced Vehicle-Track Modelling: Methods, Models and Results

Abstract

For a more detailed description of the effects related to vehicle-track interaction, which are relevant for the running behaviour, for noise and for wear, refined models of the wheelset, the track and the wheel-rail contact are developed. The models for the wheelset and for the track take the structural dynamics of the wheelset and the rails into account. For the wheel-rail contact, an iterative solution based on a Boundary Element model is used. The investigation for the scenarios of undisturbed centred running and of permanent hunting shows a distinct influence of the structural flexibilities of the wheelsets and the track on the wheel-rail contact and on the running behaviour.