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首页> 外文会议>Computers in Railways X: Computer System Design and Operation in the Railway and other Transit Systems; WIT Transactions on Built Environment; vol.88 >Fault detection of railway track by multi-resolution analysis
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Fault detection of railway track by multi-resolution analysis

机译：基于多分辨率分析的铁路轨道故障检测

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摘要

Conditions of track have conventionally been measured by using exclusive inspection vehicles. If the conditions of the track can be detected by attaching simple sensors such as accelerometers on board of commercial vehicles, more efficient maintenance of tracks would be possible. This paper describes rail corrugation detection from the vertical acceleration of a vehicle body by time-frequency analysis. An actual vehicle running tests on a commercial line was conducted, in which vertical acceleration of axle-boxes and a vehicle body were measured. In this paper we show the rail corrugation can be detected from the vertical acceleration of a vehicle body by multi-resolution analysis (MRA) using wavelet transform.
机译：赛道状况通常是通过使用专用检查车进行测量的。如果可以通过在商用车辆上安装简单的传感器（例如加速度计）来检测轨道状况，则可能会更有效地维护轨道。本文介绍了通过时频分析从车身垂直加速度检测轨道波纹的方法。在商业生产线上进行了实际的车辆行驶测试，测量了轴箱和车身的垂直加速度。在本文中，我们展示了可以使用小波变换通过多分辨率分析（MRA）从车身的垂直加速度检测出轨道波纹。

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