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A new method for measuring nonharmonic periodic excitation forces in nonlinear damped systems

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dc.contributor.authorJang, T. S.-
dc.contributor.authorBaek, Hyoungsu-
dc.contributor.authorChoi, Hang S.-
dc.contributor.authorLee, Sun-Gu-
dc.date.accessioned2011-12-08T01:40:18Z-
dc.date.available2011-12-08T01:40:18Z-
dc.date.issued2011-08-
dc.identifier.citationMECHANICAL SYSTEMS AND SIGNAL PROCESSING; Vol.25 6; 2219-2228-
dc.identifier.issn0888-3270-
dc.identifier.urihttps://hdl.handle.net/10371/75101-
dc.description.abstractThe purpose of this study is to identify an external loading of long time duration, which is nonharmonic but periodic, acting on a nonlinear dynamic system with nonlinear restoring as well as nonlinear damping. A new procedure is proposed for the force identification through an inverse formalism. However, this involves a Volterra-type nonlinear integral equation of the first kind, which lacks solution stability. Therefore, the nonlinear dynamic system under investigation is transformed into a linear relation between forces and pseudo-displacements. The lack of solution stability is resolved by applying available regularization methods. The feasibility of the force identification is demonstrated through a numerical example. (C) 2011 Elsevier Ltd. All rights reserved.-
dc.language.isoen-
dc.publisherACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD-
dc.subjectNonlinear damped systems-
dc.subjectNonharmonic periodic excitation-
dc.subjectForce identification-
dc.titleA new method for measuring nonharmonic periodic excitation forces in nonlinear damped systems-
dc.typeArticle-
dc.contributor.AlternativeAuthor백형수-
dc.contributor.AlternativeAuthor이선구-
dc.identifier.doi10.1016/j.ymssp.2011.01.012-
dc.citation.journaltitleMECHANICAL SYSTEMS AND SIGNAL PROCESSING-
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