Casing vibration and gas turbine operating conditions

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dc.contributor.author Mathioudakis, K en
dc.contributor.author Loukis, E en
dc.contributor.author Papailiou, KD en
dc.date.accessioned 2014-03-01T02:47:53Z
dc.date.available 2014-03-01T02:47:53Z
dc.date.issued 1989 en
dc.identifier.issn 04021215 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/33406
dc.relation.uri http://www.scopus.com/inward/record.url?eid=2-s2.0-0024866410&partnerID=40&md5=b8e61a1fb56fb5d3de2016e77bada73f en
dc.subject.other Accelerometers--Applications en
dc.subject.other Compressors--Gas Turbines en
dc.subject.other Industrial Plants--Gas Turbines en
dc.subject.other Mathematical Techniques--Transfer Functions en
dc.subject.other Pressure Transducers--Applications en
dc.subject.other Compressor Casing Vibration en
dc.subject.other Gas Turbine Condition Monitoring en
dc.subject.other Vector Transfer Functions en
dc.subject.other Vibration Monitoring System en
dc.subject.other Gas Turbines en
dc.title Casing vibration and gas turbine operating conditions en
heal.type conferenceItem en
heal.publicationDate 1989 en
heal.abstract The results from an experimental investigation of the compressor casing vibration of an industrial Gas Turbine are presented. It is demonstrated that statistical properties of acceleration signals can be linked with engine operating conditions. The power content of such signals is dominated by contributions originating from the stages of the compressor, while the contribution of the shaft excitation is secondary. Using non-parametric identification methods, accelerometer outputs are correlated to unsteady pressure measurements taken by fast response transducers at the inner surface of the compressor casing. The transfer functions allow reconstruction of unsteady pressure signal features from the accelerometer readings. A possibility is thus provided, for 'seeing' the unsteady pressure field of the rotor blades without actually penetrating through the casing, but by simply observing its external surface vibrations. en
heal.publisher Publ by American Soc of Mechanical Engineers (ASME), New York, NY, United States en
heal.journalName American Society of Mechanical Engineers (Paper) en

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