摘要
随着世界高速铁路的快速发展,高速铁路轨道检测技术已突破传统的轨道几何检测,朝着综合检测的方向发展。结合安装在我国新一代高速综合检测列车CRH380B-002的轮轨力检测系统在高速铁路轨道检测中的实际应用情况,介绍了我国在高速铁路轨道综合检测领域的最新研究进展———基于轮轨力测量的高速铁路轨道检测技术,并提出了一种基于轮轨力测量的高速铁路轨道状态评判方法。基于轮轨力测量的轨道检测技术通过安装在固定车辆(一般为轨道检查车)的连续测量测力轮对测量轮轨之间的相互作用力,从对车辆运行安全性和轨道疲劳寿命影响的角度对轨道状态进行检测,指导轨道日常养护。该技术是高速铁路轨道综合检测的重要组成部分,是对传统轨道几何检测的有效补充和完善,它的投入运用将更好的保障高速铁路的安全运营。
With the fast development of the world high speed railway,the track inspection technique of the high speed railway,which has broken through the traditional geometric track detection,is developing towards the comprehensive detection.In the present paper,the Chinese latest track inspection technique based on the measured wheel-rail force is introduced in detail in view of the wheel-rail force detection system installed on the Chinese high speed comprehensive inspection train CRH380B-002whose designed speed achieves to 400km / h,and a new track state evaluation based on the measured wheel-rail force is also introduced here.The wheel-rail interaction force measured by the instrumented wheelset installed on the track inspection car,can reflect the coupling dynamic performance of the car and the track clearly.According to the train running safety and track fatigue damage,these wheel-rail force can be used to detect the track state,and thus to guide the track daily maintenance.The track inspection technique based on the measured wheel-rail force is an important part of the high speed track comprehensive inspection technique,and is also an effective complement and perfection for the traditional geometric track detection.The application of this technique can better ensure the safe operation of the high-speed railway.
出处
《铁道机车车辆》
2012年第4期19-24,共6页
Railway Locomotive & Car
关键词
轮轨力
连续测量
测力轮对
高速铁路
轨道综合检测
wheel-rail interaction force
continuous measurement
instrumented wheelset
high speed railway
track comprehensive inspection
