Time Frequency Analysis for Blade Rub Detection in Multi Stage Rotor System

Ahmed M. Abdelrhman; M. Salman Leong; Yasin M. Hamdan; Kar Hoou Hui

doi:10.4028/www.scientific.net/AMM.773-774.95

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 773-774Time Frequency Analysis for Blade Rub Detection in...

Time Frequency Analysis for Blade Rub Detection in Multi Stage Rotor System

Abstract:

Blade fault is one of the most causes of failure in turbo machinery. This paper discussed the time frequency analysis for blade rubbing detection from casing vibration signal. Feasibility of Short Time Fourier Transform (STFT), Wigner-Ville distribution (WVD) and Choi-Williams distribution (CWD) were examined for blade rub detection in a multi stage blade system through an experimental data. Analysis results of the experimental data showed that these time frequency analysis methods have some inevitable deficiencies in segregating the blade passing frequency (BPF) components of the three rotor stage signals. However, CWD demonstrated a better time-frequency resolution in analyzing the multi stage rotor system signal.

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Periodical:

Applied Mechanics and Materials (Volumes 773-774)

Pages:

95-99

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.773-774.95

Citation:

Cite this paper

Online since:

July 2015

Authors:

Ahmed M. Abdelrhman*, M. Salman Leong, Yasin M. Hamdan, Kar Hoou Hui

Keywords:

Blade Fault Detection, Blade Rubbing, Time Frequency Analysis

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Creative Commons CC BY 4.0

* - Corresponding Author

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