000014055 001__ 14055
000014055 005__ 20161115094009.0
000014055 04107 $$aeng
000014055 046__ $$k2016-08-21
000014055 100__ $$aAmar, Luc
000014055 24500 $$aPassive control of fluter applicated to a 3DOF airfoil

000014055 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014055 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014055 506__ $$arestricted
000014055 520__ $$2eng$$aThis paper presents numerical simulations of passive control of flutter applied to a two dimensional airfoil-aileron configuration. The geometric model is composed of two joint solids: a main airfoil which can pitch (a) and plunge (h), and a hinged Control Surface (8). Under potential flow, low angle and frequency hypothesis, a linearization of the aeroelastic system reaches out a strongly coupled formulation. The time-domain expression of the Theodorsen unsteady aerodynamic model is computed using R.T. Jones approximation the Wagner function. This work focuses on three strategies to shift the critical speed. Firstly, the called “Linear Vibration Absorber” (LTVA) is a tuned mass damper (TMD), placed inside the airfoil, which oscillates in the plunge direction. Secondly, the “NES” is a nonlinear damper, based on the Nonlinear Ensegy Sink technology. Thirdly, the named “Cubic Control Surface” (CCS) configuration consist nonlinear hinge jointure featuring cubic restoring forces.

000014055 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014055 653__ $$a

000014055 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014055 720__ $$aAmar, Luc
000014055 8560_ $$ffischerc@itam.cas.cz
000014055 8564_ $$s191614$$uhttps://invenio.itam.cas.cz/record/14055/files/PO.FS06-1.01.237.pdf$$yOriginal version of the author's contribution as presented on CD, XMLout( page 3255, code PO.FS06-1.01.237).
000014055 962__ $$r13812
000014055 980__ $$aPAPER