Detection of blade rub in rotor system

This paper studies the detection of single blade rubbing in a multi-stage rotor system using vibration analysis. An experimental study was undertaken to simulate single blade rubbing conditions in a three-stage rotor system. Vibration signals were analyzed with both Fourier and Wavelet transforms fo...

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Bibliographic Details
Main Authors: Leong, Mohd. Salman @ Yew Mun, Lim, Meng Hee, Hui, Kar Hoou, Ngui, Wai Keng
Format: Conference or Workshop Item
Published: 2015
Subjects:
Description
Summary:This paper studies the detection of single blade rubbing in a multi-stage rotor system using vibration analysis. An experimental study was undertaken to simulate single blade rubbing conditions in a three-stage rotor system. Vibration signals were analyzed with both Fourier and Wavelet transforms for comparison purposes. Experimental results showed that single blade rubbing can be detected by comparing the pattern in both the vibration spectrum and wavelet map. The feasibility and effectiveness of wavelet analysis as compared to vibration spectrum to detect single blade rubbing was also presented in this paper.