Abstract
In this paper influence of the bubble layer on the transmission of the acoustic waves through the three-layer barrier placed in the water at various angles of incidence is investigated. Barrier consists of a layer of gel with polydispersed air bubbles limited polycarbonate layers. It is shown that the presence of bubbles in the layer substantially lowers the transmission of the acoustic waves through the multi-layer barrier for frequencies close to the resonant frequency of the bubbles. For these frequencies the values of the reflection and transmission coefficients are almost independent of the angle of incidence and determined by the parameters of the bubble gel.
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