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Optimization of a variable mouth acoustic horn

โœ Scribed by Rajitha Udawalpola; Eddie Wadbro; Martin Berggren

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
216 KB
Volume
85
Category
Article
ISSN
0029-5981

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โœฆ Synopsis

Abstract

By using boundary shape optimization on the end part of a semiโ€infinite waveguide for acoustic waves, we design transmissionโ€efficient interfacial devices without imposing an upper bound on the mouth diameter. The boundary element method solves the Helmholtz equation modeling the exterior wave propagation problem. A gradientโ€based optimization algorithm solves the resulting leastโ€squares problem and the adjoint method provides the necessary gradients. The results demonstrate that there appears to be a natural limit on the optimal mouth diameter. Copyright ยฉ 2010 John Wiley & Sons, Ltd.

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