Title

Shape Optimization Of Acoustic Scattering Bodies

Keywords

Burton-Miller algorithm; Genetic algorithms; Scattering body

Abstract

Shape optimization of acoustic scattering bodies is carried out using genetic algorithms (GA) coupled to a boundary element method for exterior acoustics. The BEM formulation relies on a modified Burton-Miller algorithm to resolve exterior acoustics and to address the uniqueness issue of the representation problem associated with the Helmholtz integral equation at the eigenvalues of the associated interior problem. The particular problem of interest considers an incident wave approaching an axisymmetric shaped body. The objective is to arrive at a geometric configuration that minimizes the acoustic intensity captured by a receiver located at a distance from the scattering body. In particular, the acoustic intensity is required to be minimum as measured proportional to the integral of the product of the potential and its complex conjugate over a volume of space which models the receiver. This is opposed to the more traditional measure of the potential at a single point in space. © 2003 Published by Elsevier Ltd.

Publication Date

7-1-2003

Publication Title

Engineering Analysis with Boundary Elements

Volume

27

Issue

7

Number of Pages

695-703

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/S0955-7997(03)00022-5

Socpus ID

0043124608 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0043124608

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