Walter Lacarbonara and Marek Cetraro
International Journal of Aeronautical and Space Sicences, vol. 12, no. 4, pp.331-345, 2011

Abstract : In this paper, a visco-hysteretic vibration absorber (VA) is proposed to increase the flutter speed of an airfoil and enhance damping in the pre- and post-flutter regimes. The passive system consists of a parallel arrangement of a dashpot and a rate-independent hysteretic element, represented by the Bouc-Wen differential model. The equations of motion are obtained and various tools of linear and nonlinear dynamics are employed to study the effects of the visco-hysteretic VA in the pre- and post-flutter ranges.

Keyword : Visco-hysteretic vibration absorber, Flutter control