翼轨顶面坡度对固定辙叉性能的影响  

Influences of Different Top Slopes of Wing Rail on Fixed Frog Behaviors

作　　者：于浩[1] 王平[1] 李博[1] 钱瑶[1] 徐井芒[1] YU Hao;WANG Ping;LI Bo;QIAN Yao;XU Jingmang(MOE Key Laboratory of High-speed Railway Engineering,Southwest Jiaotong University,Chengdu Sichuan 610031,China)

机构地区：[1]西南交通大学高速铁路线路工程教育部重点实验室,四川成都610031

出　　处：《铁道建筑》2019年第2期147-151,共5页Railway Engineering

基　　金：国家自然科学基金(51778542;U1734207)

摘　　要：基于迹线法和车辆-道岔耦合动力学理论,以60 kg/m钢轨12号固定辙叉为例,利用SIMPACK多体动力学仿真软件研究车辆过岔时轮轨接触几何关系和轮轨动力作用,并对比分析翼轨顶面坡度对固定辙叉性能的影响,得出了翼轨顶面坡度值的选取和评价方法。研究结果表明:车辆通过不同翼轨顶面坡度的固定辙叉时,随着翼轨顶面坡度的增大,其动力学指标和磨耗损伤也随之增大;翼轨顶面坡度为1∶20的固定辙叉性能最优,其次为1∶15和1∶13;翼轨顶面坡度的取值方法是合理的。Based on trace method and vehicle/turnout coupled dynamics theory,the SIMPACK multi-body dynamics simulation software was used to calculate the wheel/rail contact geometry and wheel/rail dynamic interaction with the 60 kg/m rail No.12 fixed frog as an example.The influences of different top slopes of wing rail on fixed frog behaviors were compared and analyzed,and the methods of selecting and evaluating the top slope values of wing rail were obtained.The research results show that when the vehicle passes the fixed frog with different top slopes of wing rail,the dynamic indexes and wear damage increase with the increase of the top slope of wing rail.The behavior of the fixed frog is best when the top slope of wing rail is 1∶20,followed by 1∶15 and 1∶13.It is verified that the select method of top slope value of wing rail is rational.

关 键 词：固定辙叉 翼轨顶面坡度 仿真计算 轮轨关系 动力响应 

分 类 号：U213.62[交通运输工程—道路与铁道工程]