Title: Vibration of the Curved Tracks due to the Irregularity of Wheel and Rail.
Abstract: We established a 3-dimentioal simulation method for the vibration of bogie-track system and discussed about the effect of several factors regarding corrugation of rail in the previous report. We propose an improved simulation system to check the effects of surface irregularity of both wheel and rail in this report. The simulated results shows that the vertical irregularity of rail or wheel generates combined lateral and torsional vibration of rail and lateral slip vibration on curved tracks, and that the effects of lateral irregularity of inner rail are not so much. Those results are useful for survey the cause of corrugation of rail.