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Optimization for sound transmission through a double-wall panel

Optimization for sound transmission through a double-wall panel
Optimization for sound transmission through a double-wall panel
This paper presents a bi-objective optimization of double-walled panel for simultaneously minimizing weight while maximizing the acoustic transmission loss. A sandwich construction having poroelastic lining in its core is considered. A general formulation—to calculate transmission loss as a function of frequency of the incident wave in the presence of mean external flow on one side of the double-wall panel—is presented. Biot’s theory is used to model the poroelastic material. Three types of sandwich configurations are considered and the transmission behavior is studied over a specified frequency band. The objective is to simultaneously minimize the sound transmission and the structural weight. Pareto fronts are obtained. The trade off between the two objective functions is brought out via appropriate Pareto fronts
transmission, porous material, pareto front
0003-682X
1422-1428
Zhou, Jie
ea4ca5fc-7c95-4b68-824a-b16792fee77a
Bhaskar, Atul
9b9606f2-149e-4a05-8778-6cabc19f8706
Zhang, Xin
788d80a9-6117-4670-81ef-f8ef2d26d30c
Zhou, Jie
ea4ca5fc-7c95-4b68-824a-b16792fee77a
Bhaskar, Atul
9b9606f2-149e-4a05-8778-6cabc19f8706
Zhang, Xin
788d80a9-6117-4670-81ef-f8ef2d26d30c

Zhou, Jie, Bhaskar, Atul and Zhang, Xin (2013) Optimization for sound transmission through a double-wall panel. Applied Acoustics, 74 (12), 1422-1428. (doi:10.1016/j.apacoust.2013.06.002).

Record type: Article

Abstract

This paper presents a bi-objective optimization of double-walled panel for simultaneously minimizing weight while maximizing the acoustic transmission loss. A sandwich construction having poroelastic lining in its core is considered. A general formulation—to calculate transmission loss as a function of frequency of the incident wave in the presence of mean external flow on one side of the double-wall panel—is presented. Biot’s theory is used to model the poroelastic material. Three types of sandwich configurations are considered and the transmission behavior is studied over a specified frequency band. The objective is to simultaneously minimize the sound transmission and the structural weight. Pareto fronts are obtained. The trade off between the two objective functions is brought out via appropriate Pareto fronts

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More information

Published date: December 2013
Keywords: transmission, porous material, pareto front
Organisations: Aeronautics, Astronautics & Comp. Eng

Identifiers

Local EPrints ID: 381979
URI: http://eprints.soton.ac.uk/id/eprint/381979
ISSN: 0003-682X
PURE UUID: 5805e450-51af-43f2-8e56-e74adf3c2c27

Catalogue record

Date deposited: 16 Oct 2015 14:30
Last modified: 15 Jul 2019 21:04

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