华电技术 ›› 2014, Vol. 36 ›› Issue (12): 40-41.

• 技术交流 • 上一篇    下一篇

振动监测在燃气轮机叶片故障诊断中的应用

  

  1. (江苏华电昆山热电有限公司,江苏昆山〓215300)
  • 出版日期:2014-12-25 发布日期:2015-02-04

Application of vibration monitoring in fault diagnosis of gas turbine blades

  1. (Jiangsu Huadian Kunshan Thermal Power Company Limited, Kunshan 215300, China)
  • Online:2014-12-25 Published:2015-02-04

摘要: 摘要:振动监测是公认的检测和诊断燃气轮机初期故障的有效工具。总结了基于振动的燃气轮机叶片故障检测方法,详细介绍了频谱分析法、小波分析法、神经网络和模糊理论预判分析法以及基于模型的分析法。采取合适的方法提取动态信号,可以诊断出大多数类型的叶片故障。

关键词: 关键词:燃气轮机, 叶片, 故障诊断, 振动监测, 信号分析

Abstract: Abstract:Vibration monitoring is recognized as effective tool for the detection and early diagnosis of gas turbine fault. The article summarized vibration fault detection methods for gas turbine blade, introduced spectrum analysis, wavelet analysis, neural network and fuzzy theory prejudgment analysis and modelbased analysis methods in detail. The results show that, by adequately extracting the dynamic signal, most types of blades dysfunctions can be diagnosed.

Key words: Keywords:gas turbine, blade, fault diagnosis, vibration monitoring, signal analysis