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.

中文翻译：

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弹性多孔层的四极转移矩阵

摘要

提出了线性四极传递矩阵的关系，其关系到在平面弹性多孔层的自由和/或不可渗透边界处的压力和法向速度分量。在非旋转模型框架内获得了相关性，该模型假定剪应力对跨层的波扰动传递的影响可忽略不计。显示了将结果用于宽范围声波入射角的非刚性多孔材料层的可能性。