Wavelet analysis for gas turbine fault diagnostics

Aretakis, N; Mathioudakis, K

dc.contributor.author	Aretakis, N	en
dc.contributor.author	Mathioudakis, K	en
dc.date.accessioned	2014-03-01T02:48:27Z
dc.date.available	2014-03-01T02:48:27Z
dc.date.issued	1996	en
dc.identifier.issn	04021215	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/33817
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0029698579&partnerID=40&md5=87b75d79f8da62c0856d843b69aac3cf	en
dc.subject.other	Acoustic variables measurement	en
dc.subject.other	Equipment testing	en
dc.subject.other	Failure analysis	en
dc.subject.other	Fourier transforms	en
dc.subject.other	Harmonic analysis	en
dc.subject.other	Pressure	en
dc.subject.other	Sensors	en
dc.subject.other	Signal processing	en
dc.subject.other	Signal theory	en
dc.subject.other	Vibrations (mechanical)	en
dc.subject.other	Wavelet transforms	en
dc.subject.other	Fourier analysis	en
dc.subject.other	Gas turbine fault diagnosis	en
dc.subject.other	Sampling frequency	en
dc.subject.other	Turbomachinery signals	en
dc.subject.other	Unsteady pressure	en
dc.subject.other	Wavelet analysis	en
dc.subject.other	Gas turbines	en
dc.title	Wavelet analysis for gas turbine fault diagnostics	en
heal.type	conferenceItem	en
heal.publicationDate	1996	en
heal.abstract	The application of wavelet analysis to diagnosing faults in Gas Turbines is examined in the present paper. Applying the Wavelet Transform to time signals obtained from sensors placed on an engine, gives information which is in correspondence to their Fourier Transform. Diagnostic techniques based on Fourier analysis of signals can therefore be transposed to the Wavelet analysis. In the paper the basic properties of wavelets, in relation to the nature of turbomachinery signals, are discussed. The possibilities for extracting diagnostic information by means of wavelets are examined, by studying the applicability to existing data from vibration, unsteady pressure and acoustic measurements. Advantages offered, with respect to existing methods based on harmonic analysis, are discussed as well as particular requirements related to practical application.	en
heal.publisher	ASME, New York, NY, United States	en
heal.journalName	American Society of Mechanical Engineers (Paper)	en