高速铁路轮轨横向蠕滑特性研究  

Research on Transverse Creep Characteristics of Wheel-Rail in High-Speed Railway

作　　者：高利君 GAO Lijun(Department of Traffic Operation,Shanxi Railway Vocational and Technical College,Taiyuan 030000)

机构地区：[1]山西铁道职业技术学院交通运营系,太原030000

出　　处：《现代制造技术与装备》2024年第10期4-6,共3页Modern Manufacturing Technology and Equipment

摘　　要：为研究高速铁路横向蠕滑力的变化特征,首先建立高速铁路单轮对轮轨接触动力学模型,在不同速度工况下进行仿真模拟,得到轮轨间的横向蠕滑力变化特征。其次设计制造高速铁路轮轨滚动振动实验台,在不同速度工况下进行实验,得到轮轨间的横向蠕滑力变化特征。最后对比仿真与实验得到的特性曲线趋势及关键特征。研究发现,横向蠕滑力特性曲线存在负斜率及水平阶段,且随着列车速度的增加,曲线的峰值点(轮轨蠕滑临界点)减小并向左移动,表明速度越快越易产生轮轨横向滑动,造成轮轨损伤及列车脱轨。In order to study the change characteristics of the lateral creep force of high-speed railway,firstly,a single wheel-towheel-rail contact dynamic model is established,and the change characteristics of the lateral creep force between wheel and rail are obtained by simulation under different speed conditions.Secondly,the wheel-rail rolling vibration test platform is designed and manufactured,and the characteristics of the creep force between wheel-rail are obtained by experiments under different speed conditions.Finally,the characteristic curve trends and key characteristics are compared between simulation and experiment.It is found that there are negative slope and horizontal stages in the creep force curve,and with the increase of train speed,the peak point of the curve(the critical point of wheel-rail creep)decreases and moves to the left,indicating that the faster the speed,the more likely the wheel-rail transverse slide will occur,resulting in wheel-rail damage and train derailment.

关 键 词：高速铁路 轮轨 蠕滑特性 仿真 滚动实验 

分 类 号：U211.5[交通运输工程—道路与铁道工程]