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轨道纵向刚度变化对快速列车轮轨受力的影响
引用本文:刘富,练松良.轨道纵向刚度变化对快速列车轮轨受力的影响[J].同济大学学报(自然科学版),2001,29(11):1276-1281.
作者姓名:刘富  练松良
作者单位:同济大学沪西校区铁道建筑工程系,
基金项目:高等学校骨干教师资助项目;铁道部科技发展基金资助项目(J98Z227)
摘    要:由于轨道刚度是铁路轨道设计的重要参数,直接影响到列车的运行安全和平稳性,因此运用车辆-轨道垂向系统统一模型和新型预测-校正数值积分法,对铁路快速列车以不同速度通过因道床和轨下垫层刚度变化而引起的动力不平顺轨道段时车辆和轨道的响应进行了仿真计算,干涉分析了轨道纵向刚度变化对铁路快速列车轮轨受力的影响。

关 键 词:铁路轨道  纵向刚度变化  快速列车  轮轨力  车辆-轨道垂向耦合统一模型预测  校正数值积分法
文章编号:0253-374X(2001)11-1276-06
修稿时间:2001年3月7日

Influence of Longitudinal Rigidity Change of Railway Track upon Wheel/Rail Force under Fast Speed Trains
LIU Fu,LIAN Song-liang.Influence of Longitudinal Rigidity Change of Railway Track upon Wheel/Rail Force under Fast Speed Trains[J].Journal of Tongji University(Natural Science),2001,29(11):1276-1281.
Authors:LIU Fu  LIAN Song-liang
Abstract:Track rigidity is one of the important parameters in designing railway track,which directly influences the safety and smoothness of the railway train running.The paper,by means of the unified model of vertical vehicle-track systems and new predictor-corrector method based on newmark method by Prof.ZHAI,performs a simulating calculation of the response of the railway track and railway vehicle,with different speed,caused by ballast and sub-rail pad longitudinal rigidity change.Further more,the paper analyzes the influence of the longitudinal rigidity change of railway track upon wheel/rail force under fast speed trains.
Keywords:railway track  longitudinal rigidity change  fast speed train  wheel/rail force  
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