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Optimization of a variable mouth acoustic horn
Department of Information Technology, Uppsala University.
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap. (UMIT)
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap. (UMIT)ORCID-id: 0000-0003-0473-3263
2011 (engelsk)Inngår i: International Journal for Numerical Methods in Engineering, ISSN 0029-5981, E-ISSN 1097-0207, Vol. 85, nr 5, s. 591-606Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

By using boundary shape optimization on the end part of a semi-infinite waveguide for acoustic waves, we design transmission-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 gradient-based optimization algorithm solves the resulting least-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.

sted, utgiver, år, opplag, sider
John Wiley & Sons, 2011. Vol. 85, nr 5, s. 591-606
Emneord [en]
shape optimization, helmholtz equation, boundary element method, adjoint method, acoustic horns
HSV kategori
Identifikatorer
URN: urn:nbn:se:umu:diva-40276DOI: 10.1002/nme.2982ISI: 000286775000004OAI: oai:DiVA.org:umu-40276DiVA, id: diva2:399115
Tilgjengelig fra: 2011-02-21 Laget: 2011-02-21 Sist oppdatert: 2019-01-30bibliografisk kontrollert

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