000021710 001__ 21710 000021710 005__ 20170622131301.0 000021710 04107 $$aeng 000021710 046__ $$k2017-06-15 000021710 100__ $$aHvatov, Alexander 000021710 24500 $$aCYLINDRICAL WAVES IN STRUCTURES PERIODIC IN POLAR COORDINATES 000021710 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering 000021710 260__ $$bNational Technical University of Athens, 2017 000021710 506__ $$arestricted 000021710 520__ $$2eng$$aThe paper is concerned with application of the Floquet theory for analysis of wave propagation in periodic in polar coordinates elastic structures. Although analysis of the periodicity effects in structures periodic in Cartesian coordinates is a well-established research subject, much less attention has been paid so far to vibroisolation in a membrane or a plate loaded by a point force or by a force distributed on the circle. The cancellation of the energy transfer in such a case may be achieved by employing periodicity of circular strips co-centric with the circle, where the driving force is applied. The paper addresses the similarities and differences in performance of infinite and finite structures periodic in Cartesian and polar coordinates. 000021710 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb. 000021710 653__ $$aPeriodic structures, Floquet analysis, Eigenfrequency spectra, Polar coordinates 000021710 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017 000021710 720__ $$aHvatov, Alexander$$iSorokin, Sergey 000021710 8560_ $$ffischerc@itam.cas.cz 000021710 8564_ $$s463452$$uhttps://invenio.itam.cas.cz/record/21710/files/17590.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS05] Periodicity-induced effects and methods in structural dynamics . 000021710 962__ $$r21500 000021710 980__ $$aPAPER