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  • 标题:Adapted Wavelet Transform for Twisted Blade Diagnosis in Multi Stage Rotor
  • 本地全文:下载
  • 作者:Ahmed M. Abdelrhman ; M. Salman Leong ; Y.H. Ali
  • 期刊名称:MATEC Web of Conferences
  • 电子版ISSN:2261-236X
  • 出版年度:2019
  • 卷号:255
  • DOI:10.1051/matecconf/201925502011
  • 语种:English
  • 出版社:EDP Sciences
  • 摘要:This paper studies the diagnosis of twisted blade in a multi stages rotor system using adapted wavelet transform and casing vibration. The common detection method (FFT) is effective only if sever blade faults occurred while the minor faults usually remain undetected. Wavelet analysis as alternative technique is still unable to fulfill the fault detection and diagnosis accurately due to its inadequate time-frequency resolution. In this paper, wavelet is adapted and its time-frequency is improved. Experimental study was undertaken to simulate multi stages rotor system. Results showed that the adapted wavelet analysis is effective in twisted blade diagnosis compared to the conventional one.
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