000014056 001__ 14056
000014056 005__ 20161115094009.0
000014056 04107 $$aeng
000014056 046__ $$k2016-08-21
000014056 100__ $$aBlanchard, Antoine
000014056 24500 $$aResonance capture in vortex-induced vibration of a cylinder with a rotator

000014056 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014056 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014056 506__ $$arestricted
000014056 520__ $$2eng$$aAt the intermediate Reynolds number Re = 100, a two-dimensional, linearly-sprung, circular cylinder restricted to move in the cross-flow direction and incorporating a rotational nonlinear energy sink (NES; consisting of a mass freely rotating about the cylinder axis and whose angular motion is restrained by a linear viscous damper) can undergo repetitive cycles of slowly decaying oscillations — which can lead to significant vortex street elongation with partial stabilization of the wake — interrupted by chaotic bursts. We construct a reduced-order model of the fluid-structure interaction dynamics and employ analytical techniques to show that the strongly modulated response is the manifestation of a resonance capture into a slow invariant manifold (SIM) that leads to targeted energy transfer from the cylinder to the rotator. Capture into the SIM corresponds to transient cylinder stabilization, and escape from the SIM to chaotic bursts.

000014056 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014056 653__ $$a

000014056 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014056 720__ $$aBlanchard, Antoine
000014056 8560_ $$ffischerc@itam.cas.cz
000014056 8564_ $$s149881$$uhttps://invenio.itam.cas.cz/record/14056/files/PO.FS06-1.02.238.pdf$$yOriginal version of the author's contribution as presented on CD, XMLout( page 3257, code PO.FS06-1.02.238).
000014056 962__ $$r13812
000014056 980__ $$aPAPER