Wave propagation and modetocalization in simply supported multispan beams with couplers on supports

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dc.contributor.authorKim, DOko
dc.contributor.authorKim, BWko
dc.contributor.authorLee, JHko
dc.contributor.authorLee, In Wonko
dc.date.accessioned2013-03-04T09:19:29Z-
dc.date.available2013-03-04T09:19:29Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued2004-07-
dc.identifier.citationJOURNAL OF ENGINEERING MECHANICS-ASCE, v.130, no.7, pp.747 - 752-
dc.identifier.issn0733-9399-
dc.identifier.urihttp://hdl.handle.net/10203/82307-
dc.description.abstract3The influences of couplers on wave propagation and mode localization in simply supported multispan beams with couplers consisting of lumped rotational stiffness and mass on supports a. re studied. A transfer matrix equation governing the vibrational wave propagation in the simply supported multispan beams with couplers is newly derived and simplified. The eigenvalue of the simplified transfer matrix shows that the larger stiffness or the larger mass of the coupler makes the internal coupling between spans weaker and so it makes the system more sensitive to mode localization. As the wave frequency or the eigenvalues of the system increases, the mass effect is increased while the stiffness effect is decreased. In a case considering the large stiffness and mass at the same time, there is a region with relatively wider passbands and narrower stop bands having small attenuation rates and the normal modes in it become delocalized ones. As an example, structure, a simply supported two span beam with a coupler at the midspan is considered.-
dc.languageEnglish-
dc.publisherAsce-Amer Soc Civil Engineers-
dc.subjectMODE LOCALIZATION-
dc.subjectSTRUCTURAL IRREGULARITY-
dc.subjectCONFINEMENT-
dc.subjectVIBRATIONS-
dc.titleWave propagation and modetocalization in simply supported multispan beams with couplers on supports-
dc.typeArticle-
dc.identifier.wosid000222282300001-
dc.identifier.scopusid2-s2.0-3142726482-
dc.type.rimsART-
dc.citation.volume130-
dc.citation.issue7-
dc.citation.beginningpage747-
dc.citation.endingpage752-
dc.citation.publicationnameJOURNAL OF ENGINEERING MECHANICS-ASCE-
dc.contributor.nonIdAuthorKim, DO-
dc.contributor.nonIdAuthorKim, BW-
dc.contributor.nonIdAuthorLee, JH-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorwave propagation-
dc.subject.keywordAuthorbeams-
dc.subject.keywordAuthorsupports-
dc.subject.keywordAuthorstiffness-
dc.subject.keywordAuthorcoupling-
dc.subject.keywordPlusMODE LOCALIZATION-
dc.subject.keywordPlusSTRUCTURAL IRREGULARITY-
dc.subject.keywordPlusCONFINEMENT-
dc.subject.keywordPlusVIBRATIONS-
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