大型机械大修线路后列车开通速度确定  

Theoretical Analysis of Rational Passing Velocity for Trains after Thorough Maintenance by Largescaled Machines

作　　者：李新国[1] 余儿忠[1] 胡文[1] 

机构地区：[1]同济大学沪西校区铁道建筑工程系,上海200331

出　　处：《同济大学学报（自然科学版）》2003年第2期178-181,共4页Journal of Tongji University:Natural Science

摘　　要：运用车辆 -轨道耦合模型 ,对大型养路机械大修后列车以不同运行速度开通时的各项动力安全指标进行了计算和分析 ,并在现场对不同速度运行列车的脱轨系数、偏载率和轨距扩张进行了实际测试 。By using a coupling model of vehicle-track,this paper calculates and analyzes the various safety index of the dynamic for the vehicle with different velocities after the overhaul of track by largescaled machines.Meanwhile,a spot test focusing on the train derailment coefficient,eccentric load rate and the lateral displacement of the rails was carried out as the train is running in different speeds.These measurements will provide both academic and practical bases for the inaugural speed of the train after the overhaul of the track.

关 键 词：线路大修 养路机械 列车开通速度 车辆-轨道耦合模型 动力安全指标 脱轨系数 

分 类 号：U211.5[交通运输工程—道路与铁道工程] U216.6