高速铁路邻近车站曲线最小半径研究

为了分析研究高速铁路邻近车站曲线最小半径对列车运行安全性与舒适性的影响,运用Simpack软件建立列车-线路动力学仿真模型。从动力学角度分析不同曲线半径对通过列车和停站列车的安全性和舒适性的影响。研究发现:通过列车经过车站邻近曲线时的轮轴横向力、脱轨系数、轮重减载率、列车平稳性指标大于停站车通过车站临近曲线时的相应指标;停站列车通过距离车站较远的圆缓点的轮轴横向力、脱轨系数、轮重减载率、平稳性指标能够满足运行安全性与舒适性需求,考虑富余量,停站列车速度采用通过曲中时的车速是合适的。

Study on Minimum Radius of Curves Adjacent to High-speed Railway Station

A vehicle/track dynamic simulation model is established with Simpack software to study the effect of the minimum radius of curves adjacent to high speed railway station on the ride comfort and the safety of train operation. The effects of different radius of curves on the ride comfort and the safety of the passing train and stop train are analyzed in perspective of dynamics. The results show that lateral wheel-axle force,derailment coefficient,rate of wheel load reduction,smoothness of the train passing the curves are bigger than the corresponding indexes of the stop train passing curves adjacent to the station; the same indexes of the stoptrain passing transition curves which are farther away form the station satisfy the requirements of train operation safety and ride comfort. Considering the margin,the speed of the stop train passing through the middle of curve is appropriate.