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Sound Insulation of Porous Plates
Author(s) -
Busse Anke,
Schanz Martin
Publication year - 2004
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200410241
Subject(s) - poromechanics , soundproofing , porosity , porous medium , finite element method , materials science , noise (video) , vibration , bending , acoustics , noise control , structural engineering , composite material , engineering , computer science , physics , noise reduction , image (mathematics) , artificial intelligence
Abstract Because of the still increasing noise pollution the numerical simulation of acoustic problems becomes more and more important. One essential aspect is the numerical treatment of noise insulation of solid walls. The main noise source is the bending vibration of separating components. In general, they consist of porous material, e.g., concrete or bricks. To take into account the porous structure as well as the damping effect of the porosity of these components a poroelastic plate theory is developed. The Finite Element implementation of this plate theory shows the importance of taking porous materials into account. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)