Radial compressor fault identification using dynamic measurement data

Aretakis, N; Mathioudakis, K

dc.contributor.author	Aretakis, N	en
dc.contributor.author	Mathioudakis, K	en
dc.date.accessioned	2014-03-01T02:48:26Z
dc.date.available	2014-03-01T02:48:26Z
dc.date.issued	1996	en
dc.identifier.issn	04021215	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/33807
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-17344394527&partnerID=40&md5=a1bb099e0be675d5e5cf4a5b4aea085f	en
dc.subject.other	Casing vibration	en
dc.subject.other	Fault identification	en
dc.subject.other	Fault signatures	en
dc.subject.other	Impeller fouling	en
dc.subject.other	Impeller tip clearance	en
dc.subject.other	Inlet obstruction	en
dc.subject.other	Mechanical alterations	en
dc.subject.other	Radial compressors	en
dc.subject.other	Sound emission	en
dc.subject.other	Vaned diffuser	en
dc.subject.other	Acoustic emissions	en
dc.subject.other	Acoustic variables measurement	en
dc.subject.other	Diffusers (fluid)	en
dc.subject.other	Error detection	en
dc.subject.other	Failure analysis	en
dc.subject.other	Monitoring	en
dc.subject.other	Performance	en
dc.subject.other	Pressure measurement	en
dc.subject.other	Rotors	en
dc.subject.other	Vibration measurement	en
dc.subject.other	Compressors	en
dc.title	Radial compressor fault identification using dynamic measurement data	en
heal.type	conferenceItem	en
heal.publicationDate	1996	en
heal.abstract	The exploitation of different unsteady quantity measurements for identifying mechanical alterations on a radial compressor with a vaned diffuser is examined in this paper. Measurements of sound emission, casing vibration and unsteady inner wall pressure are performed. The mechanical alterations considered have been chosen in order to reproduce or simulate faults in the compressor. They include the insertion of an inlet obstruction, an obstruction in a diffuser passage, variation of impeller tip clearance, and impeller fouling. Processing these measurement data leads to the derivation of fault signatures which can be utilized for identifying them. The suitability of measuring each of the above physical quantities is discussed with respect to their sensitivity to particular faults. The dependence of the fault signatures on operating point is also examined. It's demonstrated that minor faults which do not affect compressor operation and are not detectable by performance monitoring, can possibly be detected by the proposed methodology.	en
heal.journalName	American Society of Mechanical Engineers (Paper)	en