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Analytical time integration for BEM axisymmetric acoustic modelling

✍ Scribed by A. Warszawski; W. J. Mansur; D. Soares

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
295 KB
Volume
73
Category
Article
ISSN
0029-5981

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✦ Synopsis

Abstract

In this work, a numerical time‐domain approach to model acoustic wave propagation in axisymmetric bodies is developed. The acoustic medium is modelled by the boundary element method (BEM), whose time convolution integrals are evaluated analytically, employing the concept of finite part integrals. All singularities for space integration, present in the expressions generated by time integration, are treated adequately. Some applications are presented to demonstrate the validity of the analytical expressions generated for the BEM, and the results obtained with the present approach are compared with those generated by applying numerical time integration. Copyright © 2007 John Wiley & Sons, Ltd.

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