线路条件对高速列车横向动态偏移量的影响  

Impact of line condition on transverse dynamic offset of high-speed train

作　　者：徐浩[1] 王平[1] 陈嵘[1] 段翔远[1] 

机构地区：[1]西南交通大学高速铁路线路工程教育部重点实验室,四川成都610031

出　　处：《铁道科学与工程学报》2013年第5期12-17,共6页Journal of Railway Science and Engineering

基　　金：国家科技支撑计划项目(2009BAG12A01)

摘　　要：为研究不同线路条件对车辆横向动态偏移量的影响,从而为高速铁路限界的拟定提供理论依据,利用SIMPACK软件建立车辆-线路耦合模型,研究轨道不平顺、曲线超高对车辆最大横向动态偏移量的影响。结果表明:轨道不平顺会增大车辆的横向动态偏移量,在直线线路上车辆横向动态偏移量随列车速度的增大而增大;当列车速度为350 km/h时,动态偏移量增大到22.7 mm;在曲线半径为300 m的线路上,轨道不平顺使动态偏移量分别增大了10.1 mm;对于相同的小半径曲线线路,列车通过速度越大,车辆横向动态偏移量越小,但会加剧欠超高。列车通过速度过低,车辆存在倾覆的危险;建议确定车辆动态限界时应考虑轨道不平顺、曲线线路超高以及列车通过速度的影响。To study the impact of different line condition on the transverse dynamic offset of vehicle and provide theoretical basis for determining the high - speed railway clearance, a vehicle - line coupling model was built by the SIMPACK software, and the impact of track irregularity, superelevation of curve on the transverse dynamic offset was researched. The results show that track irregularity increases the transverse dynamic offset of vehicle. The transverse dynamic offset of vehicle increases with the train speed at strait track condition. When the train speed increases to 350 km/h, the transverse dynamic offset is 22.7 mm. When the curve radius of line is 300 m, the transverse dynamic offset of vehicle increases 10.1 ram. For the same little radius curve line, the higher the train speed, the smaller the transverse dynamic offset of vehicle, but the high speed increases the deficient superelevation. If the train speed is too low, the vehicle exists the danger of overturning. superelevation of curve line and the train speed should be considered when the dynamic determined suggested. The track irregularity, clearance of vehicle is

关 键 词：轨道不平顺 超高 高速列车 动态偏移量 

分 类 号：X913.4[环境科学与工程—安全科学]