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Article: Optimization of a clamped plate silencer

TitleOptimization of a clamped plate silencer
Authors
KeywordsPhysics
Sound
Issue Date2007
PublisherAcoustical Society of America. The Journal's web site is located at http://asa.aip.org/jasa.html
Citation
Journal Of The Acoustical Society Of America, 2007, v. 121 n. 2, p. 949-960 How to Cite?
AbstractA previous theoretical study [L. Huang, J. Acoust. Soc. Am. 119, 2628-2638 (2006)] shows that, in a duct, a simply supported plate covering a side-branch rigid cavity can function effectively as a wave reflector over a broad range of low to medium frequencies. In this study, analytical formulation is extended to the boundary condition of clamped plate, which is easier to implement in practice. The theoretical model is tested experimentally using balsawood, which has a very high stiffness to mass ratio. The spectral peaks and shapes of the measured TL are in agreement with those calculated theoretically, attempts are also made to account for the considerable sound absorption in the rig. Further numerical studies based on the validated model show that, for a uniform plate, the optimal stopband is narrower and the lower band limit is worse than that of the simply supported configuration. However, a wave reflector using nonuniform, clamped plates with thinner ends out-performs the simply supported configuration in every aspect. Analyses show that the improvement is attributed to the increased acoustic radiation efficiency over the bulk length of the nonuniform plate, which behaves more like a rigid plate. © 2007 Acoustical Society of America.
Persistent Identifierhttp://hdl.handle.net/10722/44932
ISSN
2015 Impact Factor: 1.572
2015 SCImago Journal Rankings: 0.938
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWang, Cen_HK
dc.contributor.authorHan, Jen_HK
dc.contributor.authorHuang, Len_HK
dc.date.accessioned2007-10-30T06:13:45Z-
dc.date.available2007-10-30T06:13:45Z-
dc.date.issued2007en_HK
dc.identifier.citationJournal Of The Acoustical Society Of America, 2007, v. 121 n. 2, p. 949-960en_HK
dc.identifier.issn0001-4966en_HK
dc.identifier.urihttp://hdl.handle.net/10722/44932-
dc.description.abstractA previous theoretical study [L. Huang, J. Acoust. Soc. Am. 119, 2628-2638 (2006)] shows that, in a duct, a simply supported plate covering a side-branch rigid cavity can function effectively as a wave reflector over a broad range of low to medium frequencies. In this study, analytical formulation is extended to the boundary condition of clamped plate, which is easier to implement in practice. The theoretical model is tested experimentally using balsawood, which has a very high stiffness to mass ratio. The spectral peaks and shapes of the measured TL are in agreement with those calculated theoretically, attempts are also made to account for the considerable sound absorption in the rig. Further numerical studies based on the validated model show that, for a uniform plate, the optimal stopband is narrower and the lower band limit is worse than that of the simply supported configuration. However, a wave reflector using nonuniform, clamped plates with thinner ends out-performs the simply supported configuration in every aspect. Analyses show that the improvement is attributed to the increased acoustic radiation efficiency over the bulk length of the nonuniform plate, which behaves more like a rigid plate. © 2007 Acoustical Society of America.en_HK
dc.format.extent833859 bytes-
dc.format.extent42752 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/pdf-
dc.languageengen_HK
dc.publisherAcoustical Society of America. The Journal's web site is located at http://asa.aip.org/jasa.htmlen_HK
dc.relation.ispartofJournal of the Acoustical Society of Americaen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectPhysicsen_HK
dc.subjectSounden_HK
dc.titleOptimization of a clamped plate silenceren_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0001-4966&volume=121&issue=2&spage=949&epage=960&date=2007&atitle=Optimization+of+a+clamped+plate+silenceren_HK
dc.identifier.emailHuang, L:lixi@hku.hken_HK
dc.identifier.authorityHuang, L=rp00119en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1121/1.2427126en_HK
dc.identifier.scopuseid_2-s2.0-33846707517en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33846707517&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume121en_HK
dc.identifier.issue2en_HK
dc.identifier.spage949en_HK
dc.identifier.epage960en_HK
dc.identifier.isiWOS:000244113500025-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridWang, C=23487195200en_HK
dc.identifier.scopusauthoridHan, J=8362435600en_HK
dc.identifier.scopusauthoridHuang, L=7404735514en_HK

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