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dc.contributorVirginia Tech. Engineering Science and Mechanics Departmenten
dc.contributorJordan University of Science & Technologyen
dc.contributor.authorAsfar, Omar R.en
dc.contributor.authorHawwa, Muhammad A.en
dc.date.accessioned2015-05-28T14:56:10Zen
dc.date.available2015-05-28T14:56:10Zen
dc.date.issued1993-05-01en
dc.identifier.citationAsfar, Omar R., & Hawwa, Muhammad A. (1993). Torsional mode coupling and filtering in a composite waveguide with multiperiodic interface corrugations. Journal of the Acoustical Society of America, 93(5), 2468-2473. doi: 10.1121/1.405867en
dc.identifier.issn0001-4966en
dc.identifier.urihttp://hdl.handle.net/10919/52735en
dc.description.abstractThis study is concerned with the interaction of six torsional modes in a composite axisymmetric waveguide whose interfaces are sinusoidally corrugated in the axial direction. The modes are interacting when two resonant conditions on the codirectional modes and a Bragg condition occur simultaneously. In light of the weakness of the interface corrugations, the perturbation method of multiple scales is used to derive the mode coupling equations. A novel numerical scheme for two-point boundary-value problems is used to solve the coupled amplitude equations. The power reflection coefficient of a filter section is then calculated for the cases of uniform, tapered, and chirped corrugations. An optimal filter is realized by combining both taper and chirp thus producing a nearly ideal characteristics.en
dc.format.extent6 pagesen
dc.format.mimetypeapplication/pdfen
dc.language.isoen_USen
dc.publisherAcoustical Society of Americaen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectChirpingen
dc.subjectPerturbation methodsen
dc.subjectReflection coefficienten
dc.titleTorsional mode coupling and filtering in a composite waveguide with multiperiodic interface corrugationsen
dc.typeArticle - Refereeden
dc.contributor.departmentBiomedical Engineering and Mechanicsen
dc.identifier.urlhttp://scitation.aip.org/content/asa/journal/jasa/93/5/10.1121/1.405867en
dc.date.accessed2015-05-12en
dc.title.serialJournal of the Acoustical Society of Americaen
dc.identifier.doihttps://doi.org/10.1121/1.405867en
dc.type.dcmitypeTexten


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