In-Situ Thermal and Mechanical Fibre Optic Sensing for In-Service Electric Machinery Bearing Condition Monitoring
In-Situ Thermal and Mechanical Fibre Optic Sensing for In-Service Electric Machinery Bearing Condition Monitoring
复制标题
用于在役电机轴承状态监测的原位热和机械光纤传感
DOI：
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
S. Djurović
中科院分区：
文献类型：
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作者：
A. Mohammed;S. Djurović
本文报道了一种可行性研究的光纤布拉格光栅（FBG）传感应用的同时提取电机轴承的运行状态的状态监测的目的，从同一个光学传感头的热和机械信息。其根本目的是检查使用从嵌入在轴承结构中的单个FBG头的读数来推断在传感器位置处观察到的热和机械操作条件的信息的潜力。为此，实验进行了一个光纤光栅仪表驱动端轴承的操作逆变器驱动鼠笼式感应电动机。重点特点的原位光纤光栅传感器的设计，安装和校准程序沿着与所获得的实验测量分析的报告。结果表明，所获得的测量包含并发的热和机械信息，可以区分，使检查电机轴承的热只有机械的操作条件的理解。
This paper reports a feasibility study of fibre Bragg Grating (FBG) sensing application for simultaneous extraction of thermal and mechanical information on electric machine bearings operational status for condition monitoring purposes from the same optical sensing head. The underlying aim is to examine the potential of using the readings from a single FBG head embedded in the bearing structure to infer information on both thermal and mechanical operating conditions observed at sensor location. To this end, experiments were undertaken on an FBG instrumented drive-end bearing of an operating inverter driven squirrel cage induction motor. Key features of the in-situ FBG sensor design, installation and calibration procedures along with the analysis of the obtained experimental measurements are reported. It is shown that the acquired measurements contain concurrent thermal and mechanical information that can be distinguished to enable understanding of the examined motor bearing thermal only and mechanical only operating conditions.