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An Approximate integral method for calculating the diffracted component from multiple two-dimensional objects

From National Research Council Canada

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Affiliation
  1. National Research Council of Canada. NRC Institute for Research in Construction
FormatText, Article
SubjectAcoustics
Abstract
A method for determining the diffracted or scattered components due to the interaction of a wave with multiple two-dimensional objects is given. The method presented uses approximate boundary conditions to simplify the numerically cumbersome set of integral equations associated with nonapproximate analytic solutions of the Helmholtz integral. The approximate boundary conditions, defined here, are shown to decouple the N by N set of simultaneous equations. The approximate boundary conditions are used to calculate the insertion loss for various sizes of two-dimensional objects. The predictions are compared to measured results and limitations are discussed.
Publication date
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  • Journal of the Acoustical Society of America 97, no. 1 (1 January 1995): 51–61.
LanguageEnglish
Peer reviewedYes
IdentifierIRC-P-3233
NRC numberNRCC 35986
NRC-IRC-3680
NPARC number20386719
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Record identifier5c92a99f-77c5-4d78-a8bd-3ac22150a033
Record created2012-07-25
Record modified2020-06-06
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