Acoustic performance of a stretched membrane and porous blanket combination

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dc.contributorVirginia Tech. Department of Mechanical Engineeringen
dc.contributor.authorThomas, W. A. Jr.en
dc.contributor.authorHurst, Charles J.en
dc.contributor.departmentMechanical Engineeringen
dc.date.accessed2015-05-12en
dc.date.accessioned2015-05-27T19:50:18Zen
dc.date.available2015-05-27T19:50:18Zen
dc.date.issued1976en
dc.description.abstractThe sound absorption performance of an acoustic absorber consisting of a stretched circular membrane placed a short distance in front of a fiberglass blanket was both measured and predicted. Both theoretical and experimental analyses were restricted to plane acoustic waves. Theoretical predictions indicated that the membrane-blanket combination would have a sound power absorption coefficient nearly equal to the sound power absorption coefficient of the blanket alone if the incident acoustic plane wave drove the membrane at one of its resonance frequencies. Theoretical analysis also predicted that the sound power absorption coefficient would approach zero when the membrane was driven at an antiresonance frequency by the incident acoustic plane wave. Experimental agreement with theoretical predictions was good for several membrane-blanket combinations. The results show that membrane-blanket combinations can be effective acoustic absorbers in frequency ranges which do not include the antiresonance frequencies of the membrane. The equations developed may be used to predict the acoustic performance of any membrane-blanket combination.en
dc.format.extent6 pagesen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationThomas, W. A. & Hurst, C. J. (1976). Acoustic performance of a stretched membrane and porous blanket combination. Journal of the Acoustical Society of America, 59(5), 1071-1076. doi: 10.1121/1.380972en
dc.identifier.doihttps://doi.org/10.1121/1.380972en
dc.identifier.issn0001-4966en
dc.identifier.urihttp://hdl.handle.net/10919/52653en
dc.identifier.urlhttp://scitation.aip.org/content/asa/journal/jasa/59/5/10.1121/1.380972en
dc.language.isoen_USen
dc.publisherAcoustical Society of Americaen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectAbsorption coefficienten
dc.subjectAcoustic wavesen
dc.subjectSound power levelsen
dc.subjectAcoustic analysisen
dc.subjectAcoustic absorptionen
dc.titleAcoustic performance of a stretched membrane and porous blanket combinationen
dc.title.serialJournal of the Acoustical Society of Americaen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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