A Smart Wing Model: From Design to Testing in a Wind Tunnel with a Turbulence Generator
Ioan Ursu,
George Tecuceanu,
Daniela Enciu,
Adrian Toader,
Ilinca Nastase,
Minodor Arghir,
Manuela Calcea
Affiliations
Ioan Ursu
National Institute for Aerospace Research “Elie Carafoli”–INCAS Bucharest, 061126 Bucharest, Romania
George Tecuceanu
National Institute for Aerospace Research “Elie Carafoli”–INCAS Bucharest, 061126 Bucharest, Romania
Daniela Enciu
National Institute for Aerospace Research “Elie Carafoli”–INCAS Bucharest, 061126 Bucharest, Romania
Adrian Toader
National Institute for Aerospace Research “Elie Carafoli”–INCAS Bucharest, 061126 Bucharest, Romania
Ilinca Nastase
CAMBI Research Center, Building Services Department, Technical University of Civil Engineering Bucharest, 66 Avenue Pache Protopopescu, 021414 Bucharest, Romania
Minodor Arghir
National Institute for Aerospace Research “Elie Carafoli”–INCAS Bucharest, 061126 Bucharest, Romania
Manuela Calcea
National Institute for Aerospace Research “Elie Carafoli”–INCAS Bucharest, 061126 Bucharest, Romania
The paper concerns the technology of the design, realization, and testing of a flexible smart wing in a wind tunnel equipped with a turbulence generator. The system of smart wing, described in detail, consists mainly of: a physical model of the wing with an aileron; an electric servomotor of broadband with a connecting rod-crank mechanism for converting the rectilinear motion of the servoactuator into the aileron deflection; two transducers: an encoder for measuring the deflection of the control aileron and an accelerometer mounted on the wing to measure its bending and torsional vibrations; a procedure for determining the mathematical model of the wing by experimental identification; a turbulence generator in the wind tunnel; implemented ℋ∞ and LQG algorithms for active control of vibrations. The attenuation experimentally obtained for the aeroelastic vibrations of the wing, but also for those accentuated by the turbulence, reaches values of up to 50%.
