Jet engine component maps for performance modeling and diagnosis

Sieros, G; Stamatis, A; Mathioudakis, K

dc.contributor.author	Sieros, G	en
dc.contributor.author	Stamatis, A	en
dc.contributor.author	Mathioudakis, K	en
dc.date.accessioned	2014-03-01T01:13:05Z
dc.date.available	2014-03-01T01:13:05Z
dc.date.issued	1997	en
dc.identifier.issn	0748-4658	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12330
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0031238212&partnerID=40&md5=119eff53a702c8a974cc0ba9f46f730e	en
dc.subject.classification	Engineering, Aerospace	en
dc.subject.other	Compressors	en
dc.subject.other	Computer simulation	en
dc.subject.other	Curve fitting	en
dc.subject.other	Functions	en
dc.subject.other	Least squares approximations	en
dc.subject.other	Mass transfer	en
dc.subject.other	Mathematical models	en
dc.subject.other	Turbines	en
dc.subject.other	Fault diagnosis	en
dc.subject.other	Jet engines	en
dc.title	Jet engine component maps for performance modeling and diagnosis	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1997	en
heal.abstract	This paper describes an effort to model the performance maps of compressors and turbines (i.e., the relation between mass flow, pressure ratio, and efficiency), using analytical functions. Analytical functions are fitted to the available experimental data using a least-squares-type approach for determining the parameters of the fitting function. The success of using a particular function for an application is assessed through a suitably defined mean error of the model. Apart from presenting the method for setting up these analytical representations, applications to performance modeling and fault diagnosis are discussed. The change in model parameters is used to characterize changes of the engine condition and possibly diagnose occurring faults. The impact of introducing analytical component models into overall engine computer models, replacing a tabulated form of the component maps, is also discussed.	en
heal.publisher	AMER INST AERONAUT ASTRONAUT	en
heal.journalName	Journal of Propulsion and Power	en
dc.identifier.isi	ISI:A1997XW13600012	en
dc.identifier.volume	13	en
dc.identifier.issue	5	en
dc.identifier.spage	665	en
dc.identifier.epage	674	en