| 基于声发射信号的汽轮机动静摩擦监测 |
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| 引用本文： | 金建国,刘钟杰,等.基于声发射信号的汽轮机动静摩擦监测[J].东北电力学院学报,2002,22(2):36-39. |
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| 作者姓名： | 金建国 刘钟杰 |
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| 作者单位： | [1]东北电力学院动力工程系，吉林吉林132012 [2]吉林热电厂,吉林吉林132021 |
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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，提出利用声发射技术监测汽轮机动摩擦故障的方法，并介绍了监测系统的组成及应用。
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| 关 键 词： | 声发射信号 汽轮机 监测 振动 动摩擦 静摩擦 |
| 文章编号： | 1005-2992(2002)02-0036-04 |
| 修稿时间： | 2002年2月20日 |
Monitor Friction Between Rotor and Stator of Steam Turbine Based on Acoustic Emission Signal |
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| JIN Jian-guo ,LIU Zhong-jie ,SU Tong-min.Monitor Friction Between Rotor and Stator of Steam Turbine Based on Acoustic Emission Signal[J].Journal of Northeast China Institute of Electric Power Engineering,2002,22(2):36-39. |
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| Authors: | JIN Jian-guo LIU Zhong-jie SU Tong-min |
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| Affiliation: | JIN Jian-guo 1,LIU Zhong-jie 2,SU Tong-min 2 |
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| Abstract: | It is not very effective to monitor friction between rotor and stator 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. Moreover, components and application of the monitoring system are introduced. |
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| Keywords: | Acoustic emission Monitor Steam turbine Friction |
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