Abstract：According to Brockley’s theory that friction-induced vibration causes rail corrugation, an elastic vibration model of a wheelset-track system when a vehicle negotiates a tight curve at a steady state is established, which includes a wheelset, two rails and a series of sleeper support springs and dampers. In the model, the creep forces between the wheels and rails are assumed to be saturated and equal to the normal contact forces multiplied by a friction coefficient. The motion stability of the model is analyzed using ABAQUS package. It is found that when the friction coefficient μ>0.28, there are propensities of unstable self-excited vibration which is a possible mechanism for the short-pitch corrugation occurred on the low rail. The influence of the sleeper support stiffness and damping on rail corrugation is studied by use of the model. The results show that softer sleeper support stiffness and appropriate damping may suppress rail corrugation. It is also found that similar to the discrete sleeper support, the continuous sleeper support can not eliminate wear-type rail corrugation.
王国新;陈光雄;邬平波. 轨枕支撑刚度和阻尼对小半径曲线钢轨磨耗型波磨影响的有限元研究
[J]. , 2011, 30(2): 99-103.
WANG Guoxin;CHEN Guangxiong;WU Pingbo. A finite element study on influence of the sleeper support stiffness and damping on wear-type rail corrugation on tight curves. , 2011, 30(2): 99-103.
2011, Vol. 30 
