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Rolling Bearing Fault Feature Extraction Using Chirplet Decomposition Based on Genetic Algorithm

  • Northwestern Polytechnical University Xian
  • Xi'An Research Institution of Hi-Technology

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

Abstract

Vibration signals acquired from rolling bearing usually are complex, and it is difficult to extract fault features from strong noise background. In this paper, a chirplet decomposition method based on genetic algorithm is proposed. The absolute value of the inner product of the vibration signal and the basis function of chirplet is constructed as the optimization object function, using the genetic algorithm to search the chirplet which is best matched with the analyzed signal. Then a series of linear combination of chirplet are obtained, by which the time-frequency domain characteristic of the analyzed signal are indicated. The results confirm that the chirplet based on the genetic algorithm is more effective in extracting fault feature from strong noise background than the adaptive chirplet.

Original languageEnglish
Title of host publicationProceedings - 2018 International Conference on Sensing, Diagnostics, Prognostics, and Control, SDPC 2018
EditorsChuan Li, Dian Wang, Diego Cabrera, Yong Zhou, Chunlin Zhang
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages79-84
Number of pages6
ISBN (Electronic)9781538660577
DOIs
StatePublished - 2 Jul 2018
Event2018 International Conference on Sensing, Diagnostics, Prognostics, and Control, SDPC 2018 - Xi'an, China
Duration: 15 Aug 201817 Aug 2018

Publication series

NameProceedings - 2018 International Conference on Sensing, Diagnostics, Prognostics, and Control, SDPC 2018

Conference

Conference2018 International Conference on Sensing, Diagnostics, Prognostics, and Control, SDPC 2018
Country/TerritoryChina
CityXi'an
Period15/08/1817/08/18

Keywords

  • fault feature extraction
  • genetic algorithm (GA)
  • optimal chirplet
  • rolling bearing

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