轮对蛇行失稳导致脱轨的机理研究  

An Theoretical Investigation on the Derailment Index for High-speed Railway Vehicles

作　　者：沈钢[1] 王福天[1] 

机构地区：[1]上海铁道大学机械工程系,上海200331

出　　处：《上海铁道大学学报》2000年第8期1-6,共6页

基　　金：国家自然科学基金资助项目

摘　　要：针对车辆高速时如何评定蛇行失稳导致脱轨的问题 ,调研了国内外现有的评定方法。采用计算机模拟方法求得车辆在高速时的瞬态的轮轨作用力及脱轨系数 ,结果表明了传统脱轨评定方法的局限性。An investigation has been made on the prediction of the derailment for the high-speed railway vehicles. The results from the computer simulation show that the traditional method has a drawback with the transient forces between the wheel and the rail. It is suggested that an alternative method for the criteria of the derailment should be further investigated for high-speed trains.

关 键 词：机车车辆 脱轨系数 高速运行 高速蛇行脱轨 仿真 

分 类 号：U260.112[机械工程—车辆工程] TP391.9[交通运输工程—载运工具运用工程]