基于轮轨力测量的新型轨道交通轮对智能运维监测系统研制
The Development of a New Rail Intelligent Monitor for Rail Transit Wheelsets Based on Wheel-Rail Force Measurement
朱旻昊 1贺继樊 1李溯 2杨家辉 2王清永 3倪庆博 3曹高源4
作者信息
- 1. 西南交通大学 交通安全技术研究院,四川 成都 610031
- 2. 盘天(厦门)智能交通有限公司,福建 厦门 361000
- 3. 天津市轨道交通运营集团有限公司,天津 300000
- 4. 成都轨道交通集团有限公司,四川 成都 610042
- 折叠
摘要
轮轨力直接反映了列车-线路耦合状态及车轮服役损伤水平,创新发展轮轨力在线测量技术对保障列车运行安全至关重要.简述了现有直接轮轨力测量系统的工作原理及存在的不足,通过传感器结构设计、数据融合算法及软件处理系统开发,研制了一种新型轨道交通轮对智能运维监测系统(RIM).基于剪力法轮轨力测量原理,利用设计研发的钢轨卡装式H型剪力传感器组桥阵列及多通道信号重构技术实现了轮轨力的连续测量.同时,通过制定系统测区布置方案,提出各检测功能评价方法,并构建监测系统网络架构,能满足对车轮踏面损伤、车辆偏载及超员检测等功能需求.经某地铁公司现场实测验证,本系统无需对轨道结构进行任何改动,拆装方便快捷,并能连续重叠采集测量区间内的轮轨力信号,有效弥补了单个剪力测量点独立工作产生的测量盲区,实现了轮轨垂向力的米级连续在线测量.
Abstract
The wheel-rail force directly indicates the coupling condition between the vehicle and the track,as well as the degree of the wear and the tear on the wheels.The advancement of online measurement technology for wheel-rail force is essential to ensure train operation safety.This paper provides a brief overview of existing direct wheel-rail force measurement systems,summarizing their operational principles and limitations,and a novel intelligent maintenance monitoring system for railway wheels(RIM)is introduced through sensor structure design,data fusion algorithm development,and software processing system development.Based on the shear force measurement principle of wheel-rail force,a newly designed H-shaped shear force sensor array and the multi-channel signal reconstruction technique are used to continuously measure the wheel-rail force.Furthermore,the functional requirements such as wheel tread damage,vehicle off-load and overloading detection are fulfilled through the formulation of system test area layout,the proposed evaluation methods of detection functions and the construction of monitoring system network.The field measurement results show that no change is needed for the track structure in the system,and the disassembly and assembly are easy and quick,and the continuous overlapping acquisition of wheel-rail force signals in the measuring area is realized.This system eliminates the measurement discontinuities due to individual shear force measurement points,and provides an effective method for continuous online measurement of wheel-rail vertical force at meter level.
关键词
轮轨力/剪力法/踏面损伤/多边形/在线测量Key words
wheel-rail force/shear force method/wheel tread damage/wheel polygon/on-line measurement引用本文复制引用
基金项目
国家重点研发计划"国家质量基础设施体系"重点专项(2021YFF0602200)
出版年
2024
NETL
NSTL
万方数据