EFFECT OF TANGENT TRACK BUCKLE ON VEHICLE DERAILMENT
In order to investigate the effect of tangent track buckle on railway vehicle derailment, a coupled vehicle-track dynamic model is put forward. A tangent track buckle is simulated with a cosine function, which describes the misalignment of the track with different lengths due to its buckling. In the analysis the considered are the effect of the buckle wavelength and amplitude, and the vehicle speed on the dynamic behaviour of the vehicle/track. The transient derailment coefficients, which are defined as the ratio of the wheel/rail lateral force to the vertical force and wheel load reduction, respectively, and the contact point traces of the wheels/rails are in detail analyzed and used to evaluate the risk of derailment of the whole vehicle. The numerical results obtained indicate that the track misalignment caused by the buckle and vehicle speed have a great influence on the whole vehicle running safety when the vehicle passes through the buckled tangent track.
railway vehicle track buckle derailment dynamic behaviour wheel/rail
Xue-Song Jin Xin-Biao Xiao Yong-Quan Deng Ze-Feng Wen Zhong-Rong Zhou
School of Transportation Engineering, Dalian Jiaotong University, Dalian 116028, P.R. China State Ke State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, P.R. China State Key Laboratory of Traction Power,Southwest Jiaotong University, Chengdu 610031, P.R. China
国际会议
长沙
英文
1403-1410
2007-11-19（万方平台首次上网日期，不代表论文的发表时间）