A Fault Diagnosis Method for Rotating Machinery under Variable Speed Condition Based on Infrared Thermography

Xianzhi Wang, Shubin Si, Yongbo Li, Yifan Li

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

2 Scopus citations

Abstract

Rotating machinery always works under variable speed and heavy load, resulting in difficulty in fault diagnosis. To avoid the influence caused by variable speed and noise, a novel fault diagnosis framework based on infrared thermography (IRT) is proposed in this paper. First, the IRT technique is introduced to acquire thermal images. Second, Bag-of-visual-word (BoVW) is used to extract visual features from the thermal images. In the end, the extracted visual features are taken into Softmax regression classifier to recognize the fault types of rotating machinery. The effectiveness of the proposed method is validated using the experimental data. Results show that the performance of proposed method is superior to the vibration based method in identifying ten health conditions of rotating machinery under variable speed condition.

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.
Pages30-34
Number of pages5
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

  • BoVw
  • fault diagnosis
  • infrared thermography
  • rotating machinery
  • Softmax
  • variable speed conditions

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