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Modeling of Multilayered Structures on the Coupling Surface Between a Structure and an Acoustic Cavity
構造・音響連成面上にある積層構造物のモデル化
2007
Transactions of the Japan Society of Mechanical Engineers Series C
構造・音響連成面上にある積層構造物のモデル化
This paper describes a new numerical method to calculate efficiently the effect of a multilayered structure which is located on the coupling surface between structure and acoustic cavity. This method utilizes the transfer matrix built from analytical wave function sets for each layer. Solutions for Helmholtz equations derived from Biot's theory are applied for the layer of absorbing porous material such as polymer foams. Transfer matrix for multilayered structure is then applied to form
doi:10.1299/kikaic.73.1667
fatcat:ktflhlx6vbcb7jj6vqh52tgnd4