Interaction of acoustic waves with porous layer
A.A. Gubaidullin1, O.YU. Boldyreva2, D. D. And3
1 Tyumen Division of Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
2Tyumen Division of Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
3 Tyumen Division of Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Keywords: porous layer, gap, barrier, acoustic wave, propagation, reflection
Pages: 455-470
Abstract
Interaction of sound impulse with porous layer is investigated. The presence of a barrier shielded by the layer and the gap between the porous layer and the barrier is possible. Method of calculation in linear approximation of pressures and tensions in the porous layer, gap, and on the barrier has been proposed. The method serves to interpret data on acoustic waves interaction with porous layer obtained experimentally or with the use of finite-difference methods. Specifics of acoustic wave propagation into the porous layer and further reflection from the barrier has been studied. Comparison of calculation data with experimental data of other authors on impulse propagation through the porous plate submerged in water has been carried out.
|
