Experimental study on mechanism of rail corrugation using corrugation simulator

This paper presents experimental study on corrugation phenomenon growing on the top surface of rail in a tight curve of track. One of the characteristics of the corrugation is to involve a slight slip, i.e. creepage, in rolling contact surfaces between rails and wheels. In order to examine the mechanism of corrugation, the authors reproduced the phenomenon in experiments. In particular they examined it with focusing on the value of steady creepage. From this investigation, the effect of steady creepage on corrugation development has been cleared.