Application of instantaneous power spectrum for diagnostics of machinery operating under non stationary load condition

Jacek Urbanek, Tomasz Barszcz, Radosław Zimroz, Jerome Antoni

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Vibration analysis of machines operating under non stationary load conditions requires special attention. This refers to the necessity of use of order tracking algorithms together with additional advanced signal processing methods, especially when faults indicators of interest are located in resonance frequency ranges. Nowadays cyclostationarity analysis becomes more popular in the field of mechanical systems signal processing. It has proven its functionality in diagnostics of rotating machinery in numerous cases. One of the most important tools of cyclostationarity is the Instantaneous Power Spectrum (IPS). The authors investigated a selected cases of wind turbine drive train faults as typical examples of machinery operating under non stationary load conditions. Instantaneous power spectrum was applied to vibration signals components originated from rolling element bearings. The capabilities and limitations of IPS calculated in angular domain have been presented with the main focus on variable operational conditions.

Original languageEnglish (US)
Title of host publication8th International Conference on Condition Monitoring and Machinery Failure Prevention Technologies 2011, CM 2011/MFPT 2011
PublisherBritish Institute of Non-Destructive Testing
Pages144-155
Number of pages12
ISBN (Print)9781618390141
StatePublished - Jan 1 2011
Externally publishedYes
Event8th International Conference on Condition Monitoring and Machinery Failure Prevention Technologies 2011, CM 2011/MFPT 2011 - Cardiff, United Kingdom
Duration: Jun 20 2011Jun 22 2011

Publication series

Name8th International Conference on Condition Monitoring and Machinery Failure Prevention Technologies 2011, CM 2011/MFPT 2011
Volume1

Other

Other8th International Conference on Condition Monitoring and Machinery Failure Prevention Technologies 2011, CM 2011/MFPT 2011
CountryUnited Kingdom
CityCardiff
Period6/20/116/22/11

ASJC Scopus subject areas

  • Mechanical Engineering
  • Safety, Risk, Reliability and Quality

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  • Cite this

    Urbanek, J., Barszcz, T., Zimroz, R., & Antoni, J. (2011). Application of instantaneous power spectrum for diagnostics of machinery operating under non stationary load condition. In 8th International Conference on Condition Monitoring and Machinery Failure Prevention Technologies 2011, CM 2011/MFPT 2011 (pp. 144-155). (8th International Conference on Condition Monitoring and Machinery Failure Prevention Technologies 2011, CM 2011/MFPT 2011; Vol. 1). British Institute of Non-Destructive Testing.