DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Moonseok | ko |
dc.contributor.author | Park, Youn-sik | ko |
dc.contributor.author | Park, Youngjin | ko |
dc.contributor.author | Park, K. C. | ko |
dc.date.accessioned | 2013-03-11T16:32:28Z | - |
dc.date.available | 2013-03-11T16:32:28Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2009 | - |
dc.identifier.citation | COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, v.198, no.15-16, pp.1368 - 1388 | - |
dc.identifier.issn | 0045-7825 | - |
dc.identifier.uri | http://hdl.handle.net/10203/99609 | - |
dc.description.abstract | New approximate models for external acoustics interacting with flexible structures are developed. The basic form of the present models is obtained by a combination of the Laplace-transformed retarded and advanced potentials with the weighting parameter as part of the model equation. It is shown that the maximum attainable time-derivative of convergent approximate models is two. hence any attempt to include higher orders will lead to non-convergent models. The present external acoustic model is implemented and interfaced with a finite element structural analyzer for the transient response analysis of submerged spherical and cylindrical shells subjected to a series of incident waves. Comparisons of the present results with the classical analytical solutions and the Doubly Asymptotic Approximations (DAAs) show that proposed model offers improved accuracy especially for early-time responses, exhibits computational robustness, and maintains the impulse response consistency that are desirable for inverse problems. The present model is applied for a shock response correlation of an experimental complex ring cylinder, which demonstrates the applicability of the proposed approximate model to practical engineering problems. (C) 2009 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.subject | DOUBLY ASYMPTOTIC APPROXIMATIONS | - |
dc.subject | INTERNAL FLUID VOLUMES | - |
dc.subject | SUBMERGED STRUCTURES | - |
dc.subject | TIME | - |
dc.subject | WAVE | - |
dc.subject | EXCITATION | - |
dc.subject | SHELLS | - |
dc.title | New approximations of external acoustic-structural interactions: Derivation and evaluation | - |
dc.type | Article | - |
dc.identifier.wosid | 000264619000008 | - |
dc.identifier.scopusid | 2-s2.0-61349120143 | - |
dc.type.rims | ART | - |
dc.citation.volume | 198 | - |
dc.citation.issue | 15-16 | - |
dc.citation.beginningpage | 1368 | - |
dc.citation.endingpage | 1388 | - |
dc.citation.publicationname | COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING | - |
dc.identifier.doi | 10.1016/j.cma.2008.12.003 | - |
dc.contributor.localauthor | Park, Youn-sik | - |
dc.contributor.localauthor | Park, Youngjin | - |
dc.contributor.nonIdAuthor | Park, K. C. | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | External acoustics | - |
dc.subject.keywordAuthor | Structure-acoustic interactions | - |
dc.subject.keywordAuthor | Retarded and advanced acoustic potential | - |
dc.subject.keywordPlus | DOUBLY ASYMPTOTIC APPROXIMATIONS | - |
dc.subject.keywordPlus | INTERNAL FLUID VOLUMES | - |
dc.subject.keywordPlus | SUBMERGED STRUCTURES | - |
dc.subject.keywordPlus | TIME | - |
dc.subject.keywordPlus | WAVE | - |
dc.subject.keywordPlus | EXCITATION | - |
dc.subject.keywordPlus | SHELLS | - |
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