Volume 29 Issue 1
Jan.  2003
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Song You, Liu Zhongkan, . Early RubImpact Fault Diagnosis Based on Wavelet Packet Decomposition[J]. Journal of Beijing University of Aeronautics and Astronautics, 2003, 29(1): 87-90. (in Chinese)
Citation: Song You, Liu Zhongkan, . Early RubImpact Fault Diagnosis Based on Wavelet Packet Decomposition[J]. Journal of Beijing University of Aeronautics and Astronautics, 2003, 29(1): 87-90. (in Chinese)

Early RubImpact Fault Diagnosis Based on Wavelet Packet Decomposition

  • Received Date: 01 Nov 2001
  • Publish Date: 31 Jan 2003
  • Rub-impact signal detection between rotor and stator is investigated. The features of no rub-impact and early rub-impact are analysed based on the wavelet packet decomposition, which is sensitive to the singularity of signal and able to offer a richer resolution in frequency band than wavelet decomposition. Results show that the wavelet packet decomposition can be used to detect rub-impact signal effectively, and the localization of rub-impact faults can be realized with the present method.

     

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