An integrated wayside condition monitoring system for axle bearings

整个英国铁路网的车辆运输密度正在增加，因此，由于相关的成本和延误，任何由于设备故障而造成的运营中断都是非常不可取的。客运和货运车辆车轴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盒探测器和空气耦合声发射系统无法达到消除轴轴承故障导致的脱轨风险以及允许演变为基于状态的维护程序所需的准确性。COMORAIL项目旨在通过开发和实施综合在线系统来提高现有的路旁监测能力，该系统将结合振动分析和声发射技术。这些技术中的每一种都是相辅相成的，因此提高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