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 Posted: Sun 3:35, 08 May 2011 Post subject: Abercrombie France Green function method based on |
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Green function method based on the structure of an Enclosure - Acoustic Coupling of
amplitudeofvelocitythatisobtainbycombiningGreenfunctionofstructure, vibrationequationofapanelandboundaryconditions. Thesetwoformulashaveobviousphysicalexplanationsandareeasytobetransformedin-t0matrixformulasthataresoconvenientthatnumericalsimulationcanbecarriedoutdirectlywithacomputer. Themethod0fnumericalsimulationcanbeusedinanenclosurewithanygeometricalshape. Thesetwoformulasaretheessentialbasisfortheanalvsisofstructural-acousticcouplingofanenclosure. Thesimulationpartiscarriedoutbytransforminganalyticalfor-mulasintomatrixformulas. Basedonthemodelofarectangularenclosure, modesofsoundpressureandflexiblepanelareobtainedbyFEM. Thenmodalcouplingcoefficientsaresynthesized. Finally,[link widoczny dla zalogowanych], theresponsesofsoundpressureandpanelve-locitvareworkedout. TheresultofthesimulationmethodcoincideswellwiththeanalyticalresultandKim'sexperimentalresuh. Thetheoryandthesimulationarealsoappliedtoamodelofanirregularenclosure. Theresultissatisfactory. Keywords: structuralvibrationIfiniteelementmethodsIstructural-acousticcouplingIenclosureIcomputersimulation first author: Luo,[link widoczny dla zalogowanych], male, Ph.D., 1973, 10B students. Phone: (021) 54741481; E-mail. . 1uocha02000 @ hotmail. com After careful deliberation the meeting to discuss . The new editorial board is based on Editorial Committee to maintain the total number of the basic premise of constant adjustment and enrichment to young professionals more than 20 new members mainly to form the new Editorial Board. In order to ensure the quality of,[link widoczny dla zalogowanych], the meeting decided to implement editor,[link widoczny dla zalogowanych], deputy editor of accountability; also asked the editorial board of the new effective implementation of obligations, and actively contributors, soliciting contributions and timely due diligence reviewers, and the Executive director of the editorial board would be the last of you experts,[link widoczny dla zalogowanych],
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