Cart (Loading....) | Create Account
Close category search window
 

Fault characteristics analysis for rotor systems with misalignment based on Wavelet Packet Decomposition and frequency-band energy ratio analysis

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Zhang Shuai ; Sch. of Inf. & Electron. Eng., Shandong Inst. of Bus. & Technol., Yantai, China ; Qu Yanhuai ; Han Qingkai

In this paper, combining with model experiment, fault characteristics of single-span and dual-disc rotor system with bearing misalignment are investigated by the combination of Wavelet Packet Decomposition (WDP) and frequency-band energy ratio analysis method. Firstly, resampling is applied to ensure the accurate and efficient decomposition of signal frequency-band. And then with the mother wavelet function 'db44', the displacement signals were decomposed into 4 levels. Moreover, through a comparison with the time-domain waveforms and amplitude spectrums of decomposed signals in different decomposing levels, the effects of different misalignments to system vibration are shown. And corresponding frequency-band energy ratio values can have an excellent corresponding relationship with the misalignment degree and actual speed which can be applied to fault feature extraction to implement effective diagnosis of misalignment fault.

Published in:

Control Conference (CCC), 2011 30th Chinese

Date of Conference:

22-24 July 2011

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.