Non-linear engine component fault diagnosis from a limited number of measurements using a combinatorial approach

Aretakis, N; Mathioudakis, K; Stamatis, A

dc.contributor.author	Aretakis, N	en
dc.contributor.author	Mathioudakis, K	en
dc.contributor.author	Stamatis, A	en
dc.date.accessioned	2014-03-01T02:49:15Z
dc.date.available	2014-03-01T02:49:15Z
dc.date.issued	2002	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/34441
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0037002925&partnerID=40&md5=8b0c9defb39fb2313c559b43ecfd9dd0	en
dc.subject.other	Compressors	en
dc.subject.other	Jet engines	en
dc.subject.other	Pressure	en
dc.subject.other	Temperature	en
dc.subject.other	Vectors	en
dc.subject.other	Fault diagnosis	en
dc.subject.other	Nonlinear gas path analysis	en
dc.subject.other	Turbofan engines	en
dc.title	Non-linear engine component fault diagnosis from a limited number of measurements using a combinatorial approach	en
heal.type	conferenceItem	en
heal.publicationDate	2002	en
heal.abstract	A method for diagnosing component faults of jet engines is presented. It uses non-linear gas path analysis techniques to determine the values of health parameters, with the help of a suitably formulated engine simulation model. The incentive of the method is to achieve the determination of the values of component health indices when a limited number of measured quantities is available, which do not allow the determination of all the fault indices simultaneously. A combinatorial approach is introduced, in order to circumvent the problem of the insufficient information for determining a full set of indices. After obtaining a set of possible solutions, a selection procedure is applied to isolate the ones that can give the actual fault identify. Quantification of the fault comes at a final step, when the faulty component has been identified. Different scenarios of faults on a twin spool partially mixed turbofan engine are considered in order to demonstrate the effectiveness of the method. The limitations of the method are also discussed.	en
heal.journalName	American Society of Mechanical Engineers, International Gas Turbine Institute, Turbo Expo (Publication) IGTI	en
dc.identifier.volume	2 A	en
dc.identifier.spage	109	en
dc.identifier.epage	118	en