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An online monitoring system of friction fault based on acoustic emission technology

机译:基于声发射技术的摩擦故障在线监测系统

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Vibration signals are usually used to monitor friction fault between stator and rotor of steam turbine in fossil-fuel power plant indirectly, and the effect is not ideal due to the limitation of vibration meter and heavy mass of rotor. The reason why vibration signals can not monitor friction fault between stator and rotor of steam turbine is analyzed in this paper in theory. A method of monitoring friction fault between stator and rotor of steam turbine based on acoustic emission (AE) technology is supposed. An online monitoring system of friction fault for steam turbine is designed. It is shown that the monitoring system can measure friction fault between stator and rotor of steam turbine effectively and accurately and improve the reliability of steam turbine.
机译:振动信号通常用于间接监测化石燃料发电厂汽轮机的定子与转子之间的摩擦故障,由于振动计和转子质量的限制,其效果并不理想。从理论上分析了振动信号不能监测汽轮机定子与转子之间的摩擦故障的原因。提出了一种基于声发射技术的汽轮机定子与转子摩擦故障监测方法。设计了一种汽轮机摩擦故障在线监测系统。结果表明,该监控系统能够有效,准确地测量汽轮机定子与转子之间的摩擦故障,提高了汽轮机的可靠性。

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