An Investigation into Stick-Slip Vibrations on Vehicle/Track Systems

摘要

A model for the numerical simulation of vehicle/track interaction and stick-slip vibration is presented. A finite element model is developed to calculate vertical contact forces. These forces are then coupled Through he contact patch into a non-linear time-domain model by which the stick-slip vibration Behaviour of a wheel-rail system is analysed. The investigation suggests that stick-slip vibration may Occur if a vehicle which has a maligned or an initial 'wind-up' wheelset meets a vertical irregularity or Contaminants on the track.