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Blind source separation of rotating machinery fault signals based on fractional lower order statistics

  • Gang Yu*
  • , Zhidong Xiao
  • , Changning Li
  • *Corresponding author for this work
  • Harbin Institute of Technology Shenzhen
  • Shenyang Ligong University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Vibration signals generated from rotating machinery fault sources are essentially random processes consisting of large amount of fault impulses, which belong to a special class of statistical distribution called α stable distribution. In this paper, a blind source separation method based on the utilization of fractional lower order statistics derived from the α stable distribution is proposed for the separation of rotating machinery fault signals. Simulation experiments based on the application for the separation of bearing fault signals have shown that the proposed approach has great potential for the separation of rotating machinery fault signals.

Original languageEnglish
Title of host publication2011 Prognostics and System Health Management Conference, PHM-Shenzhen 2011
DOIs
StatePublished - 2011
Externally publishedYes
Event2011 Prognostics and System Health Management Conference, PHM-Shenzhen 2011 - Shenzhen, China
Duration: 24 May 201125 May 2011

Publication series

Name2011 Prognostics and System Health Management Conference, PHM-Shenzhen 2011

Conference

Conference2011 Prognostics and System Health Management Conference, PHM-Shenzhen 2011
Country/TerritoryChina
CityShenzhen
Period24/05/1125/05/11

Keywords

  • blind source separation
  • fractional lower order statistics
  • rotating machinery
  • α stable distribution

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