车辆脱轨问题的探讨  

Discussion about Derailment Problem of Vehicles

作　　者：陈淮[1] 杜晓伟 曾庆元[2] 

机构地区：[1]郑州工业大学土木建筑工程学院,河南郑州450002 [2]长沙铁道学院土木建筑工程学院,湖南长沙410075

出　　处：《郑州工业大学学报》2000年第2期12-14,21,共4页Journal of Zhengzhou University of Technology

基　　金：河南省自然科学基金资助项目! (0 0 40 40 1 0 0 )

摘　　要：车辆脱轨条件和评定指标是衡量车辆安全运行的重要指标 .根据车辆运行状态 ,从单轮脱轨条件和评定指标、轮对脱轨条件和评定指标、由轮重减载引起脱轨的条件、脱轨系数与轮压减少率的关系等 4个方面对车辆的脱轨安全度进行了探讨 ,分析了影响车辆脱轨的因素 ,并指出车辆脱轨评定条件的适用情况 .结果表明 。The safety of the running train is an important subject in railway vehicle system dynamics.The condition of derailment and indices of vehicle are important parameters that are defined for safety evaluation of the running train.According to the running condition of vehicle,the paper discusses derailment safety of vehicle in four respects:the coefficient of derailment for a single wheel,the coefficient of derailment for wheel-set,the derailment condition caused by wheel load reduction,relation between the coefficient of derailment and the rate of wheel load reduction.Factors affecting the indices are systematically investigated.Suitable conditions of derailment of vehicle are given.The results show that H/P 1 can be used to evaluate the derailment safety,inwhich H is a force acting on wheel-set in the direction of lateral and P 1 is a force acting on the derailment wheel in the direction of vertical.

关 键 词：脱轨 列车安全 安全度 

分 类 号：U298.51[交通运输工程—交通运输规划与管理]