This paper applies four-pole parameter theory to the problem of sound propagation in porous materials. The four-pole equations are derived for a single layer of porous material, as well as for (n) layers in tandem. The exact equivalent electrical circuit for a layer of porous material, as well as lumped parameter approximations, are given. Various applications of the theory are pointed out.This paper applies four-pole parameter theory to the problem of sound propagation in porous materials. The four-pole equations are derived for a single layer of porous material, as well as for (n) layers in tandem. The exact equivalent electrical circuit for a layer of porous material, as well as lumped parameter approximations, are given. Various applications of the theory are pointed out.
Propagation of Sound in Porous Materials
Sae Technical Papers
SAE World Congress & Exhibition ; 1964
01.01.1964
Aufsatz (Konferenz)
Englisch
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