Modal sensing of efficient acoustic radiators with polyvinylidene fluoride distributed sensors in active structural acoustic control approaches

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dc.contributorVirginia Tech. Department of Mechanical Engineeringen
dc.contributor.authorClark, Robert L.en
dc.contributor.authorFuller, Chris R.en
dc.contributor.departmentMechanical Engineeringen
dc.date.accessed2015-05-12en
dc.date.accessioned2015-05-27T19:50:25Zen
dc.date.available2015-05-27T19:50:25Zen
dc.date.issued1992-06-01en
dc.description.abstractAn experimental investigation was performed to determine the feasibility of implementing polyvinylidene fluoride (PVDF) piezoelectric distributed sensors on the surface of a structure as error sensors in an adaptive least-mean-squares (lms) control approach to minimize acoustic radiation. While much research has been devoted to controlling vibration of structures with these sensors, they have yet to be implemented in structural acoustic control. To this end, two narrow strip PVDF sensors were positioned on a simply supported plate such that the dominant observed response was due to the odd-odd modes of the plate (i.e., the more efficient acoustic radiators). The error sensors in effect act as spatial wave-number filters and only observe those components that contribute significantly to far-field sound radiation. A variety of test cases were studied for controlling sound radiation due to a disturbance both on and off resonance. Results from these experiments indicate that PVDF sensors and piezoceramic actuators show much promise for controlling acoustic radiation from structures, to a large degree overcoming the need for error microphones in the far field.en
dc.description.sponsorshipUnited States. Defense Advanced Research Projects Agencyen
dc.description.sponsorshipOffice of Naval Research - Grant No. ONR-N00014-88-K-0721en
dc.format.extent9 pagesen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationClark, R. L., & Fuller, C. R. (1992). Modal sensing of efficient acoustic radiators with polyvinylidene fluoride distributed sensors in active structural acoustic control approaches. Journal of the Acoustical Society of America, 91(6), 3321-3329. doi: 10.1121/1.402822en
dc.identifier.doihttps://doi.org/10.1121/1.402822en
dc.identifier.issn0001-4966en
dc.identifier.urihttp://hdl.handle.net/10919/52701en
dc.identifier.urlhttp://scitation.aip.org/content/asa/journal/jasa/91/6/10.1121/1.402822en
dc.language.isoen_USen
dc.publisherAcoustical Society of Americaen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectAcoustic sensingen
dc.subjectElectromagnetic radiation detectorsen
dc.subjectRadiation detectorsen
dc.subjectRadiation monitoringen
dc.subjectAcoustic radiatorsen
dc.titleModal sensing of efficient acoustic radiators with polyvinylidene fluoride distributed sensors in active structural acoustic control approachesen
dc.title.serialJournal of the Acoustical Society of Americaen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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