Modal disparity and its experimental verification

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dc.contributor.author Issa, Jimmy
dc.date.accessioned 2016-06-07T06:40:33Z
dc.date.available 2016-06-07T06:40:33Z
dc.date.copyright 2008 en_US
dc.date.issued 2016-06-07
dc.identifier.issn 0022-460X en_US
dc.identifier.uri http://hdl.handle.net/10725/3959
dc.description.abstract This paper describes an analytical and experimental investigation of the property of modal disparity in a vibrating structure. For a given structure, the concept of modal disparity describes the structure's ability to generate significant changes in the mode shapes by some type of on-the-fly structural modification. In the present study we consider a vibrating beam that experiences a controlled stiffness change, induced by the activation and deactivation of an electromagnetic brake that causes a spatially localized change in the bending stiffness. Using a finite element model and an experimental apparatus it is shown that significant amounts of energy can be shifted back and forth between sets of modes in a systematic and predictable manner. This confirmation of modal disparity for a specific structural system provides evidence that this concept is feasible, and thereby opens the door for a number of potential applications in passive and active control of vibrating structures. en_US
dc.language.iso en en_US
dc.title Modal disparity and its experimental verification 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 Journal of Sound and Vibration en_US
dc.journal.volume 311 en_US
dc.journal.issue 3-5 en_US
dc.article.pages 1465-1475 en_US
dc.identifier.doi http://dx.doi.org/10.1016/j.jsv.2007.10.038 en_US
dc.identifier.ctation Issa, J., Mukherjee, R., Diaz, A. R., & Shaw, S. W. (2008). Modal disparity and its experimental verification. Journal of Sound and Vibration, 311(3), 1465-1475. 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 http://www.sciencedirect.com/science/article/pii/S0022460X07008280 en_US

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