On the use of a variational technique based on integral equations for plane acoustic and vibro-acoustic problems

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedings – Annual report year: 2016Researchpeer-review

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Problems such as sound insulation and absorption of plane structures in laboratory conditions can
theoretically be described as an integral or integral-differential equation. This equation contains the Green’s
function integrated over the surface, which describes the radiation from the surface. A variational technique,
well described by Morse and Ingard, has successfully been used for both absorption and sound insulation for
a plane incident wave. The resulting formulas are surprisingly simple, accurate and robust. Moreover, they
capture the physics of sound radiation of a finite surface well. However, the approach has turned out
problematic in more complicated cases, including spatial periodicity. The paper discusses these issues, and
suggests modifications to overcome the problems.
Original languageEnglish
Title of host publicationProceedings of Inter-noise
EditorsWolfgang Kropp
Number of pages8
Publication date2016
ISBN (Electronic) 978-3-939296-11-9
Publication statusPublished - 2016
Event45th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2016 - Hamburg, Germany
Duration: 21 Aug 201624 Aug 2016
Conference number: 45
http://www.internoise2016.org/

Conference

Conference45th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2016
Number45
CountryGermany
CityHamburg
Period21/08/201624/08/2016
Internet address

    Research areas

  • Vibro-Acoustics, Transmission, Absorption
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