秦沈客运专线高速试验段线路缓和曲线动力学仿真分析

利用北美铁道协会 (AAR)开发的大型商业通用轮轨动力学仿真计算软件NUCARS ,对秦沈客运专线高速试验段采用的三次抛物线型缓和曲线进行了列车线路动力学仿真分析 ,并与日本新干线采用的半波正弦缓和曲线进行了对比 ;同时也对中国与日本新干线不同超高设置方法对轮轨动力学性能的影响进行了对比仿真计算。研究结果表明 ,现在使用的缓和曲线线型以及中国式超高设置方法满足秦沈线试验段高速试验要求的安全性和舒适性。

Rail/Wheel Dynamics Simulation for the Transition Curve of the High Speed Test Section of the Qinshen Passenger Railway Line

Using the large wheel/rail dynamics simulation software package NUCARS developed by the Association of American Railroads (AAR), the authors have analyzed the wheel/rail dynamics behavior when high speed cars run in high-speed sections of the Qinshen Passenger Railway Line with a cubic parabola transition curve and have compared with the half-wave-length sinusoidal transition curve present with the Japanese Shinkansen Line. Also, the authors have made comparing wheel/rail dynamics simulation for different cant setting methods of the Chinese type and the Japanese Shinkansen type. The research results show that the existing type of the transition curve and the Chinese type of cant setting are able to ensure safety and comfort in the high speed tests in test sections of the Qinshen Passenger Railway Line.