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Exact tuning of a vibration neutralizer for the reduction of flexural waves in beams

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dc.contributor.author Issa, Jimmy S.
dc.date.accessioned 2019-12-12T14:28:45Z
dc.date.available 2019-12-12T14:28:45Z
dc.date.copyright 2019 en_US
dc.identifier.issn 1520-8524 en_US
dc.identifier.uri http://hdl.handle.net/10725/11634
dc.description.abstract In this work, designs of vibration neutralizers for the reduction of flexural waves in beams are proposed. The system considered consists of an Euler-Bernoulli beam experiencing a harmonically travelling wave. The neutralizer, which consists of a mass, spring, and damper (viscous or hysteretic), is attached at a point on the beam. Two designs are considered. In the first, the aim is the minimization of the transmitted energy, and in the second, the aim is the maximization of the energy dissipated in the neutralizer. For minimum energy transmission, the undamped neutralizer can be tuned to reflect all the energy back to its source at the tuning frequency. The tuning stiffness ratio and the neutralizer bandwidth is obtained in an analytical closed form. For maximum energy dissipation, the neutralizer can dissipate up to 50% of the incident energy. The maximum energy dissipated, i.e., 50% of the incident energy, is constant and occurs at the tuning frequency. It is neither affected by the neutralizer mass nor by the tuning frequency. The tuning parameters are obtained analytically. Finally, in all the above cases, the increasing of the neutralizer mass enhances the neutralizer performance. All analytical findings are validated numerically. en_US
dc.language.iso en en_US
dc.title Exact tuning of a vibration neutralizer for the reduction of flexural waves in beams en_US
dc.type Article en_US
dc.description.version Published en_US
dc.author.school SOE en_US
dc.author.idnumber 200803943 en_US
dc.author.department Industrial And Mechanical Engineering en_US
dc.description.embargo N/A en_US
dc.relation.journal The Journal of the Acoustical Society of America en_US
dc.journal.volume 146 en_US
dc.journal.issue 1 en_US
dc.article.pages 486-500 en_US
dc.identifier.doi https://doi.org/10.1121/1.5116690 en_US
dc.identifier.ctation Issa, J. S. (2019). Exact tuning of a vibration neutralizer for the reduction of flexural waves in beams. The Journal of the Acoustical Society of America, 146(1), 486-500. en_US
dc.author.email jimmy.issa@lau.edu.lb en_US
dc.identifier.tou http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php en_US
dc.identifier.url https://asa.scitation.org/doi/abs/10.1121/1.5116690 en_US
dc.orcid.id https://orcid.org/0000-0002-6772-0657 en_US
dc.author.affiliation Lebanese American University en_US


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