Abstract
This paper reports on the measured wheel-rail creep force characteristics and the mechanism of corrugation formation by using a full-scale bogie on a test stand. The measured creep characteristics agree well with the calculated values based on Kalker's linear theory. The relationship between creep characteristics and contact position is also discussed. The results show that a small change in wheelset lateral displacement may lead to a great change in creep characteristics. Mathematical models are developed in order to explain the mechanism of corrugation development. Simulation results agree well with practical phenomena. From the simulation results we find that the creep force characteristics and the vertical oscillation system have great influence on the formation mechanism of rail head corrugation.
Published Version
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