An integrated wayside condition monitoring system for axle bearings

在英国铁路网中，机车车辆的运输密度不断增加，因此，由于相关的成本和延误，任何由于设备故障而导致的运营中断都是非常不可取的。客运和货运机车车辆轴承的可靠性和安全性一直是铁路行业关注的问题。用于状态监测目的的热轴检测器和空气耦合声发射系统不能达到消除由车轴轴承故障引起的脱轨风险所需的精度，以及允许发展到基于状态的维护程序。COMORAIL项目旨在通过开发和实施一个综合在线系统来提高现有的路边监测能力，该系统将结合联合收割机振动分析和声发射技术。这些技术中的每一种都是对另一种的补充，因此增加了综合在线系统的总体通用性和准确性

The rolling stock traffic density is increasing throughout the British rail network and therefore any operational disruption due to equipment failure is highly undesirable due to the associated costs and delays. The reliability and safety of axle bearings in passenger and freight rolling stock has always been of concern to the rail industry. Hotbox detectors and air-coupled acoustic emission systems used for condition monitoring purposes fail to achieve the accuracy required to eliminate the risk of derailments caused by axle bearing faults as well as allow evolution to condition based maintenance procedures. The COMORAIL project aims to improve existing wayside monitoring capability by developing and implementing an integrated on-line system, which will combine vibration analysis and acoustic emission techniques. Each of these techniques complements the other and therefore increases the overall versatility and accuracy of the integrated online system