Simulation of gas turbine blade vibration measurement from unsteady casing wall pressure Forbes, Gareth Llewellyn en_US Randall, Robert Bond en_US 2021-11-25T14:47:38Z 2021-11-25T14:47:38Z 2009 en_US
dc.description.abstract Non-contact measurement of gas turbine blade vibrations has made significant progress over recent years; however, there still exist some limitations in the current techniques available. Specifically with blade tip timing (BTT) methods, some of the limitations are: the requirement of a large number of sensors for each engine stage, difficulties in dealing with multiple excitation frequencies, and sensors being located in the gas path. An alternative technique is examined here, utilising the unsteady casing wall pressure, which has the potential to rectify some of these limitations. Analytical simulation of the internal casing wall pressure is derived, for the situation with rotor blades undergoing forced vibration. The amplitude of the blade forced vibrations is then reconstructed from the simulated unsteady casing wall pressure, with results showing the robustness of the method to sensor location, measurement noise and a limited number of sensors. en_US
dc.identifier.isbn 978-0-9757855-7-7 en_US
dc.language English
dc.language.iso EN en_US
dc.publisher Australian Acoustical Society en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri en_US
dc.source Legacy MARC en_US
dc.subject.other Phase demodulation en_US
dc.subject.other Gas Turbine en_US
dc.subject.other Blade vibration en_US
dc.title Simulation of gas turbine blade vibration measurement from unsteady casing wall pressure en_US
dc.type Conference Paper en
dcterms.accessRights open access
dspace.entity.type Publication en_US
unsw.description.notePublic Original inactive link: en_US
unsw.relation.faculty Engineering
unsw.relation.ispartofconferenceLocation Adeliade, Australia en_US
unsw.relation.ispartofconferenceName Acoustics 2009: Research to Consulting en_US
unsw.relation.ispartofconferenceProceedingsTitle Proceedings of the annual conference of the Australian Acoustical Society en_US
unsw.relation.ispartofconferenceYear 2009 en_US
unsw.relation.originalPublicationAffiliation Forbes, Gareth Llewellyn, Mechanical & Manufacturing Engineering, Faculty of Engineering, UNSW en_US
unsw.relation.originalPublicationAffiliation Randall, Robert Bond, Mechanical & Manufacturing Engineering, Faculty of Engineering, UNSW en_US School of Mechanical and Manufacturing Engineering *
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