市域快速轨道交通曲线超高研究  

Study on Curve Superelevation of Urban Rail Rapid Transit

作　　者：李俊哲 LI Junzhe(China Railway First Survey and Design Institute Group Co.Ltd.,Xi an Shaanxi 710043,China)

机构地区：[1]中铁第一勘察设计院集团有限公司,陕西西安710043

出　　处：《铁道建筑》2018年第8期110-113,共4页Railway Engineering

摘　　要：市域快速轨道交通是一种服务于市域范围内中长距离客运的轨道交通类型。本文采用多体动力学软件,建立车-线耦合系统动力学仿真模型,对运营在曲线地段处于欠超高状态下的列车进行动力响应分析。计算结果表明:当车辆运行于曲线地段时,内、外轨的轮轨横向力均有所增大;外轨的轮轨竖向力明显增大,内轨的轮轨竖向力明显减小;内、外轨的脱轨系数基本相同。在车辆处于欠超高状态下,随着实设超高的增大,内、外轨横向力均呈现出减小的趋势;内轨竖向力呈现出增大的趋势,而外轨竖向力呈现出减小的趋势;内外轨的脱轨系数均呈现出减小的趋势,并且减小量基本相同。The urban rail rapid transit is a type of rail transit serving in the middle and long distance passenger transport in the area of city.In this paper,a dynamics simulation model of vehicle-line coupling system was established by multibody dynamics software.The dynamic response analysis of train operating under the condition of def icient superelevation in curve line was carried out.The results show that,when the vehicle is running in the curve line,the lateral forces of both inner and outer rails increase,the vertical force of the outer rail increases obviously while that of the inner rail decreases obviously,and the derailment coeff icients of inner and outer rails are basically the same.Under the condition of def icient superelevation,the lateral forces of both inner and outer rails decrease with the increase of the actual superelevation,the vertical force of the inner rail increases while that of the outer rail decreases,and the derailment coeff icients of both inner and outer rails show decreasing trend and the decreasing amounts are basically the same.

关 键 词：市域快速轨道交通 车-线耦合动力学 仿真分析 曲线线路 欠超高 

分 类 号：U212.3[交通运输工程—道路与铁道工程]