Wavelet Analysis on Vibration Signal during Unsteady Process

Yang Liu; Chong Qing Yin

doi:10.4028/www.scientific.net/AMR.424-425.27

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 424-425Wavelet Analysis on Vibration Signal during...

Wavelet Analysis on Vibration Signal during Unsteady Process

Abstract:

Because of the limitation of Fast Fourier Transform(FFT) for the methed of traditional spectrum analysis to analyze the unsteady signal, wavelet analysis are made for the typical unsteady process signal of starting up and shut down with the good characteristic of simultaneous localization in both the time and the frequency domains based on the field test, in which the signal is decomposed into different frequency band, and then the weak signal is caught and the dominant frequency is picked up for the analysis of the vibration source. It proved that the wavelet is a most powerful tool for processing the unsteady signal.

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Periodical:

Advanced Materials Research (Volumes 424-425)

Pages:

27-30

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.424-425.27

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Online since:

January 2012

Authors:

Yang Liu, Chong Qing Yin

Keywords:

Analysis of Vibration Source, Unsteady Process, Wavelet Analysis

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