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dc.contributor.advisorShin, Young S.
dc.contributor.advisorKim, Kilsoo S.
dc.contributor.authorLee, Gi Gon
dc.dateMarch 1988
dc.date.accessioned2012-11-27T18:05:56Z
dc.date.available2012-11-27T18:05:56Z
dc.date.issued1988-03
dc.identifier.urihttp://hdl.handle.net/10945/22905
dc.descriptionApproved for public release; distribution is unlimited
dc.description.abstractThe reduction of structural vibrations in ships and submarines is a long standing concern of the Navy. Waveguide absorbers are very effective devices which can be applied to this problem. This study evaluates the increase in vibration damping of a plate structure across a broad frequency range using light weight beam waveguide absorbers. Viscoelastic and constrained layer beam waveguide absorbers were studied both theoretically and experimentally. Impedances of the waveguide absorbers at the attachment point were predicted using both Bernoulli-Euler and Timoshenko beam theory for the viscoelastic beam and using sixth order beam theory for the constrained layer beam. The theoretically predicted impedances were compared with the experimental measurements. Results from random vibration tests of a plate structure showed significant increases in damping over a broad frequency range (100 Hz - 2 KHz) when the waveguide absorbers were attached on the plate.en_US
dc.description.urihttp://archive.org/details/analyticalexperi00leeg
dc.language.isoen_US
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.rightsCopyright is reserved by the copyright owner
dc.subject.lcshMechanical engineeringen_US
dc.titleAnalytical and experimental studies of beam waveguide absorbers for structural dampingen_US
dc.typeThesisen_US
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.contributor.departmentMechanical Engineering
dc.subject.authorwaveguide absorberen_US
dc.subject.authorviscoelasticen_US
dc.subject.authorconstrained layeren_US
dc.subject.authorbeamen_US
dc.description.serviceLieutenant, Korean Navyen_US
etd.thesisdegree.nameM.S. in Mechanical Engineeringen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineMechanical Engineeringen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US


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