A time-frequency envelope estimation method for detection of bearing-localized defects

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dc.contributor.author Nikolaou, NG en
dc.contributor.author Antoniadis, IA en
dc.date.accessioned 2014-03-01T02:41:41Z
dc.date.available 2014-03-01T02:41:41Z
dc.date.issued 2001 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/30596
dc.relation.uri http://www.scopus.com/inward/record.url?eid=2-s2.0-0035790805&partnerID=40&md5=e07c29cc5e139478acd8185732062630 en
dc.relation.uri http://www.scopus.com/inward/record.url?eid=2-s2.0-0035790805&partnerID=40&md5=e07c29cc5e139478acd8185732062630 en
dc.subject Bearing en
dc.subject Envelope estimation en
dc.subject Vibration en
dc.subject Wavelet en
dc.subject.other Algorithms en
dc.subject.other Bearings (machine parts) en
dc.subject.other Computer simulation en
dc.subject.other Defects en
dc.subject.other Failure analysis en
dc.subject.other Fast Fourier transforms en
dc.subject.other Modulation en
dc.subject.other Parameter estimation en
dc.subject.other Spectrum analysis en
dc.subject.other Wavelet transforms en
dc.subject.other Defect detection en
dc.subject.other Morlet wavelet en
dc.subject.other Rolling element bearing en
dc.subject.other Time frequency envelope estimation method en
dc.subject.other Vibration measurement en
dc.title A time-frequency envelope estimation method for detection of bearing-localized defects en
heal.type conferenceItem en
heal.publicationDate 2001 en
heal.abstract This paper proposes a new method for the estimation of the envelope of signals resulting from rolling element bearing-localized defects, based on the use of a shifted Morlet wavelet family. Using a time-frequency representation of the signal, the method is designed in a way that can exploit the underlying physical concepts of the modulation mechanism, present in the vibration response of bearings with localized defects. Systematic selection criteria for the automated choice of the critical parameters that characterize the Morlet wavelet family are used. The method is evaluated by using actual vibration signals measured from bearings with defects at different locations. en
heal.journalName Proceedings of the ASME Design Engineering Technical Conference en
dc.identifier.volume 6 A en
dc.identifier.spage 39 en
dc.identifier.epage 46 en

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