Advanced time domain wave-number sensing for structural acoustic systems. II. Active radiation control of a simply supported beam

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dc.contributorVirginia Tech. Department of Mechanical Engineering. Vibration and Acoustics Laboratoriesen
dc.contributor.authorMaillard, Julien P.en
dc.contributor.authorFuller, Chris R.en
dc.contributor.departmentMechanical Engineeringen
dc.date.accessed2015-05-12en
dc.date.accessioned2015-05-27T19:50:23Zen
dc.date.available2015-05-27T19:50:23Zen
dc.date.issued1994-06-01en
dc.description.abstractA real time structural acoustic sensor and associated signal processing is developed and applied to the active control of sound radiated by a simply supported beam. The sensor consists of multiple accelerometers mounted on the structure. An array of FIR filters processes the measured structural information to provide an estimate of the structural wave-number component coupled to acoustic radiation in a prescribed direction. This time domain signal is used as the error information in a feedforward adaptive control approach. The single channel filtered-X LMS algorithm is implemented here. Computer simulations in the discrete time domain demonstrate the ability of the sensor to replace the use of error microphones in the far field. The described sensor represents a significant alternative to the use of distributive structural sensors (for example piezoelectric material) by providing accurate radiation information over a broadband frequency range.en
dc.description.sponsorshipUnited States. Office of Naval Research - Grant No. ONR-N0004-92-j- 1170-P00007en
dc.format.extent11 pagesen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationMaillard, J. P., & Fuller, C. R. (1994). Advanced time domain wave-number sensing for structural acoustic systems. II. Active radiation control of a simply supported beam. Journal of the Acoustical Society of America, 95(6), 3262-3272. doi: 10.1121/1.409990en
dc.identifier.doihttps://doi.org/10.1121/1.409990en
dc.identifier.issn0001-4966en
dc.identifier.urihttp://hdl.handle.net/10919/52685en
dc.identifier.urlhttp://scitation.aip.org/content/asa/journal/jasa/95/6/10.1121/1.409990en
dc.language.isoen_USen
dc.publisherAcoustical Society of Americaen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectElectromagnetic radiation detectorsen
dc.subjectRadiation detectorsen
dc.subjectFar infrared detectorsen
dc.subjectRadiation monitoringen
dc.subjectStructural acousticsen
dc.titleAdvanced time domain wave-number sensing for structural acoustic systems. II. Active radiation control of a simply supported beamen
dc.title.serialJournal of the Acoustical Society of Americaen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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