000015016 001__ 15016
000015016 005__ 20161115100209.0
000015016 04107 $$aeng
000015016 046__ $$k2016-08-21
000015016 100__ $$aLacarbonara, Walter
000015016 24500 $$aAsymptotic approach to flutter control via hysteretic absorbers

000015016 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000015016 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000015016 506__ $$arestricted
000015016 520__ $$2eng$$aThe flutter control problem in long-span suspension bridges is discussed. A reduced-order bridge model (see Fig. 1) is augmented by the degree of freedom of a hysteretic mass nonlinearly tuned to mitigate the limit cycle oscillations (LCO) when the wind speed is above the flutter speed. The model comprises the plunge (vertical) and pitch (torsional) motions while the aerodynamic lift and moment are governed by a quasi-steady formulation. The restoring force of the absorber is characterized by linear and cubic elastic terms together with a hysteretic part governed by the Bouc-Wen model. The method of multiple scales is adopted to obtain an asymptotic approximation of the LCO behavior. An optimization procedure based on the Differential Evolutionary Algorithm is employed to obtain the set of constitutive parameters that lead to an optimal mitigation of the wind-induced oscillations.

000015016 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015016 653__ $$a

000015016 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000015016 720__ $$aLacarbonara, Walter
000015016 8560_ $$ffischerc@itam.cas.cz
000015016 8564_ $$s125783$$uhttps://invenio.itam.cas.cz/record/15016/files/TS.MS04-7.05.pdf$$yOriginal version of the author's contribution as presented on CD,  page 178, code TS.MS04-7.05
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000015016 962__ $$r13812
000015016 980__ $$aPAPER