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The Four-Pole Transfer Matrices of an Elastic Porous Layer

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Abstract

Relations are proposed for the transfer matrices of linear four-poles that relate the pressure and normal velocity components at free and/or impervious boundaries of a planar elastic porous layer. The dependences were obtained within the irrotational model framework, which assumes a negligible effect of shear stresses on the transfer of wave disturbances across the layer. The possibility of using the results for layers of nonrigid porous materials in a wide range of sound-wave angles of incidence is shown.

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  1. Polzunov Scientific and Development Association for Research and Design of Power Equipment, 191167, St. Petersburg, Russia

    L. R. Yablonik

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  1. L. R. Yablonik
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Correspondence to L. R. Yablonik.

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Yablonik, L.R. The Four-Pole Transfer Matrices of an Elastic Porous Layer. Acoust. Phys. 66, 89–96 (2020). https://doi.org/10.1134/S1063771020010121

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  • DOI: https://doi.org/10.1134/S1063771020010121

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