A unified approach to acoustic fields induced in inhomogeneous spheres by external sources

Kokkorakis, GC

dc.contributor.author	Kokkorakis, GC	en
dc.date.accessioned	2014-03-01T01:27:49Z
dc.date.available	2014-03-01T01:27:49Z
dc.date.issued	2008	en
dc.identifier.issn	0022-460X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18588
dc.subject	Integral Equation	en
dc.subject.classification	Acoustics	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.classification	Mechanics	en
dc.subject.other	Computational complexity	en
dc.subject.other	Integral equations	en
dc.subject.other	Numerical analysis	en
dc.subject.other	Spheres	en
dc.subject.other	Green dyadic	en
dc.subject.other	Inhomogeneous spheres	en
dc.subject.other	Acoustic fields	en
dc.title	A unified approach to acoustic fields induced in inhomogeneous spheres by external sources	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.jsv.2007.10.053	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.jsv.2007.10.053	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	The evaluation of acoustic fields induced in inhomogeneous spheres by external sources, based on volume integral equations, is simplified considerably using Ivakin's integral equation and the use of the well-known expansion for the Green dyadic. The method presented here overcomes the difficulties of calculation arising from the possible step discontinuities in the density, allowing a quick and accurate evaluation of the fields. So the simple hybrid (analytical-numerical) scalar method, developed previously for spheres with variable, even discontinuous compressibility, is easily extended to the general case of inhomogeneous density in a manner requiring the least possible analytical and computational effort. (C) 2007 Elsevier Ltd. All rights reserved.	en
heal.publisher	ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD	en
heal.journalName	Journal of Sound and Vibration	en
dc.identifier.doi	10.1016/j.jsv.2007.10.053	en
dc.identifier.isi	ISI:000255304600008	en
dc.identifier.volume	312	en
dc.identifier.issue	3	en
dc.identifier.spage	496	en
dc.identifier.epage	508	en