000022340 001__ 22340
000022340 005__ 20170622150008.0
000022340 04107 $$aeng
000022340 046__ $$k2015-05-25
000022340 100__ $$aDuhamel, Denis
000022340 24500 $$aA WAVE-BASED REDUCTION TECHNIQUE FOR THE DYNAMIC BEHAVIOR OF PERIODIC STRUCTURES

000022340 24630 $$n5.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000022340 260__ $$bNational Technical University of Athens, 2015
000022340 506__ $$arestricted
000022340 520__ $$2eng$$aThe wave finite element (WFE) method is investigated to describe the dynamic behavior of periodic structures like those composed of arbitrary-shaped substructures along a certain straight direction. A generalized eigenproblem based on the so-called S + S−1 transformation is proposed for accurately computing the wave modes which travel in right and left directions along those periodic structures. Besides, a model reduction technique is proposed which involves partitioning a whole periodic structure into one central structure surrounded by two extra substructures. In doing so, a few wave modes are only required for modeling the central periodic structure. A comprehensive validation of the technique is performed on a 2D periodic structure. Also, its efficiency in terms of CPU time savings is highlighted regarding a 3D periodic structure that exhibits substructures with large-sized FE models.

000022340 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000022340 653__ $$aWave Finite Element Method, Periodic Structures, Model Reduction, Structural Dynamics.

000022340 7112_ $$aCOMPDYN 2015 - 5th International Thematic Conference$$cCrete (GR)$$d2015-05-25 / 2015-05-27$$gCOMPDYN2015
000022340 720__ $$aDuhamel, Denis$$iMencik, Jean-Mathieu
000022340 8560_ $$ffischerc@itam.cas.cz
000022340 8564_ $$s1397838$$uhttps://invenio.itam.cas.cz/record/22340/files/C520.pdf$$yOriginal version of the author's contribution as presented on CD, section: 
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000022340 962__ $$r22030
000022340 980__ $$aPAPER