高速列车轮对踏面擦伤检测系统及检测方法  

Wheel Tread Wear Detection System and Method for High-speed Train

作　　者：王晋威 谭琬 李庆先 刘良江 WANG Jinwei;TAN Wan;LI Qingxian;LIU Liangjiang(Hunan Institute of Metrology and Test,Changsha 410014,China;Changsha University of Science and Technology,Changsha 410114,China)

机构地区：[1]湖南省计量检测研究院,长沙410014 [2]长沙理工大学,长沙410114

出　　处：《计量技术》2020年第6期41-44,共4页Measurement Technique

基　　金：湖南省科技创新计划资助(2018XK2008)。

摘　　要：在高速列车运行过程中,轮对踏面出现擦伤会严重威胁高速列车的安全运行,因此能够及时检测出轮对踏面擦伤及其擦伤程度对保证列车运行安全和合理制定维修计划具有重要意义。论文将经验模态分解(EMD)、希尔伯特(Hilbert)变换和瞬时频率等方法应用到列车轮对踏面擦伤的检测环节中,组成一个基于网络通信,以微机为核心的自动监测系统,把列车轮对从制造、运用到检修等各环节有机结合起来,为检修提供可靠的技术保障。The timely detection of the wheel tread wear and the extent of the abrasions are essential for the train operation and maintenance plan,as the wheel tread wear will seriously threaten the safety of high-speed trains. In this paper,empirical mode decomposition( EMD),Hilbert transformation and instantaneous frequency are applied to the detection of the wheel tread wear,forming an automatic monitoring system based on network communication and using microcomputer as the core,which effectively combines the steps of manufacturing,operation,and maintenance of the train wheelset to provide reliable technical support for the maintenance.

关 键 词：高速列车 轮对踏面 擦伤检测 无损检测 

分 类 号：U279[机械工程—车辆工程]