摘要
随着我国铁路的不断提速 ,对列车运行的安全性和平稳行提出了更高的要求 ,而轨道横向振动是决定列车安全平稳运行的关键之一 .本文应用车辆 -轨道横向动力耦合模型 ,采取有限元的仿真计算方法 ,分别对不同列车速度条件下的客车在不同横向刚度的情况下的横向动力特性进行了分析 ,同时利用实测数据进行对比 ,对轨道结构横向位移对车辆运行的平稳性和安全性的影响进行分析研究 .文章最后提出 ,为了提高提速列车的运行品质 ,应对轨道平顺度。
With the increasing of train velocity, higher safety and stability for running is required. The track lateral vibration is one of the key point to affect the train running in safety and stability. This paper adopts a coupling model of lateral vehicle-track systems, by means of finite element simulation calculation program, separately analyses the lateral vibration performance on different track stiffness with various passenger-train running speeds. With the calculation result, and contrasted with the field testing data, the influence of the rail lateral displacement on the passenger-train running in stability and safety is analyzed and investigated. In conclusion, in order to improve the quality of the speed-up train running, the track irregularity, the magnitude and uniformity the vertical and lateral stiffness of track should be effectively controlled.
出处
《华东交通大学学报》
2004年第4期22-25,共4页
Journal of East China Jiaotong University
基金
道路与铁道工程国家重点学科资助项目
关键词
铁路工程
轨道结构
横向振动
有限元仿真
动力分析
railway, track structure
lateral vibration
finite element stimulation
dynamic analysis
