| 利用声发射信号监测汽轮机动静摩擦 |
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| 引用本文： | 李艳秋,卞双,张艾萍,叶荣学. 利用声发射信号监测汽轮机动静摩擦[J]. 现代电力, 1999, 16(2) |
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| 作者姓名： | 李艳秋 卞双 张艾萍 叶荣学 |
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| 作者单位： | 华北电力大学，东北电力学院 |
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| 摘 要： | 电厂中通常根据汽轮机振动信号来间接监测动静摩擦故障，但由于测振仪表的局限性及转子质量较大等原因，效果不理想。针对这种情况，从理论上分析了振动表不能监测摩擦故障的原因，提出可利用声发射信号原理监测汽轮机动静摩擦故障的方法，设计了以８０９８单片机为核心的监测系统。
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| 关 键 词： | 声发射；监测；汽轮机；摩擦 |
| 修稿时间： | 1998-10-27 |
Monitor Friction between Rotor and Stationary of Steam Turbine by Acoustic Emission Signal |
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| Li Yanqiu,Bian Shuang Dept of Thermal Power Engineering,NCEPU. Monitor Friction between Rotor and Stationary of Steam Turbine by Acoustic Emission Signal[J]. Modern Electric Power, 1999, 16(2) |
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| Authors: | Li Yanqiu Bian Shuang Dept of Thermal Power Engineering NCEPU |
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| Abstract: | It is not very effective to monitor friction between rotor and stationary of a steam turbine by vibration signal indirectly in power station because of the restriction of vibrometer and heavy rotor In view of the situation,this paper analyses the reason why the vibrometer can not monitor the friction in theory and advances a method monitoring the friction trouble in acoustic emission signal,a monitoring system has been designed which core is 8098 microcontroller |
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| Keywords: | acoustic emission monitor steam tarbine friction |
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