CRTSⅡ型板式无砟轨道张拉锁件疲劳性能研究  

Research on fatigue performance of tensile locker for CRTS Ⅱ slab-type ballastless track

作　　者：李永娟[1] 王贺郑[1] 苗同臣[1] 

机构地区：[1]郑州大学力学与工程科学学院,河南郑州450001

出　　处：《铁道建筑》2015年第3期107-109,共3页Railway Engineering

基　　金：河南省科技攻关资助项目(122102210100);河南省教育厅科学技术研究重点项目指导计划资助项目(12B580003)

摘　　要：利用ANSYS有限元分析软件,对无砟轨道相邻轨道板间的纵向连接件——张拉锁件进行虚拟疲劳仿真分析,在较短的时间内获得了该零件的预测疲劳寿命。同时通过大量疲劳试验,发现张拉锁试件疲劳合格率不高,近半数达不到200万次疲劳循环次数的要求,应引起重视。In this paper,the virtual fatigue simulation analysis of slack adjuster that is the longitudinal connecting piece between adjacent ballastless track slabs is conducted by ANSYS finite element analysis software,which could predict the fatigue life of the piece in a relatively short period of time. Through a lot of fatigue test,it is showed that the fatigue qualified rate of slack adjuster pieces is not high and almost halfofpieces can＇t meet fatigue cycle demand which is 2million times,which should be paid more attention.

关 键 词：张拉锁件 数值计算 疲劳分析 疲劳试验 

分 类 号：U213.242[交通运输工程—道路与铁道工程]