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Date of Publication:2013-01-01

Journal:计算力学学报

Affiliation of Author(s):运载工程与力学学部

Issue:1

Page Number:45-50

ISSN No.:1007-4708

Abstract:Sound absorption performance of the porous materials is closely related to micro-structural configurations and porosity. In this paper, results from finite element method examining micro-/macro relations linking micro-structural configurations to sound absorption properties are presented. Based on the influences of shape, porosity and size of pore on the sound-absorbing property, theories and methods for designing the microstructural configurations of materials exhibiting high-efficient soundproofing property in a specific frequency are established. Some high performance soundproofing micro-structural configurations are given out through optimal design.

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