HOS analysis of measured vibration data on rotating machines with different simulated faults

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

Abstract

Vibration-based condition monitoring (VCM) has gained tremendoussuccesses in the detection and differentiation of faults associated with rotatingmachines, through the installation of various numbers of vibration transducers atindividual bearing pedestals of the monitored machine. This chapter howeverexposes the future potentials of the use of the higher order spectra (HOS) i.e., thebispectrum and the trispectrum for rotating machines faults diagnosis (FD). Theaim of this is to achieve a significant reduction in the number of vibration transducersrequired at each bearing pedestal, without necessarily compromisingvaluable information required for the diagnosis. Four cases (healthy, shaft misalignment,cracked shaft and shaft rub) were simulated on an experimental rig withtwo rigidly coupled shafts supported by four ball bearings. Only four accelerometers(one at each bearing pedestal) were used for this study. The HOS resultswere compared for the different conditions of the rig. The observations andfindings are presented in the chapter.
Original languageEnglish
Title of host publicationAdvances in condition monitoring of machinery in non-stationary operations
Subtitle of host publicationproceedings of the third international conference on condition monitoring of machinery in non-stationary operations CMMNO 2013
EditorsGiorgio Dalpiaz, Riccardo Rubini, Gianluca D’Elia, Marco Cocconcelli, Fakher Chaari, Radoslaw Zimroz, Walter Bartelmus, Mohamed Haddar
Place of PublicationBerlin, Heidelberg
PublisherSpringer Nature
Chapter6
Pages81-89
Number of pages9
ISBN (Electronic)9783642393488
ISBN (Print)9783642393471
DOIs
Publication statusPublished - May 2013
EventThe 3rd International Conference on Condition Monitoring of Machinery in Non-Stationary Operations (CMMNO13) - Ferrara, Italy
Duration: 8 May 201310 May 2013

Conference

ConferenceThe 3rd International Conference on Condition Monitoring of Machinery in Non-Stationary Operations (CMMNO13)
CityFerrara, Italy
Period8/05/1310/05/13

Keywords

  • Rotating machines
  • Condition monitoring
  • Spectrum
  • Higher order spectrum
  • Bispectrum
  • Trispectrum

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