Nonstationary signal de-noising method of slow-speed large-size slewing bearing using robust local mean decomposition

Yubin Pan, Hua Wang, Jie Chen, Rongjing Hong

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

1 Scopus citations

Abstract

As a key rotary connection component of construction machinery, the operation performance of slewing bearing has an impact on the stability of engineering construction. Condition monitoring for slewing bearing is essential to their high availability and profitable operation. However, the characteristics of slow-speed large-size slewing bearing make the weak vibration signal corrupted with noise. Therefore, effective signal de-noising for preprocessing technique is difficult but crucial. To solve this problem, a novel signal de-nosing method using robust local mean decomposition is proposed with a product function selection strategy based on kernel principal component analysis. The effectiveness is validated by using simulated as well as experimental vibration signals obtained through a slewing bearing highly accelerated life test. The results illustrate that proposed method can perform effective signal de-noising of slewing bearing compared with other conventional method.

Original languageEnglish
Title of host publicationInternational Conference on Intelligent Equipment and Special Robots, ICIESR 2021
EditorsQiang Zhang, Zhong You
PublisherSPIE
ISBN (Electronic)9781510651302
DOIs
StatePublished - 2021
Event2021 International Conference on Intelligent Equipment and Special Robots, ICIESR 2021 - Qingdao, China
Duration: 29 Oct 202131 Oct 2021

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12127
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference2021 International Conference on Intelligent Equipment and Special Robots, ICIESR 2021
Country/TerritoryChina
CityQingdao
Period29/10/2131/10/21

Keywords

  • Kernel principal component analysis
  • Robust local mean decomposition
  • Signal de-noising
  • Slewing bearing

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