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16 March 2018 Control strategy of an electrically actuated morphing flap for the next generation green regional aircraft
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The design and application of adaptive devices are currently ambitious targets in the field of aviation research addressed at new generation aircraft. The development of intelligent structures involves aspects of multidisciplinary nature: the combination of compact architectures, embedded electrical systems and smart materials, allows for developing a highly innovative device. The paper aims to present the control system design of an innovative morphing flap tailored for the next generation regional aircraft, within Clean Sky 2 – Airgreen 2 European Research Scenario. A distributed system of electromechanical actuators (EMAs) has been sized to enable up to three operating modes of a structure arranged in four blocks along the chord-wise direction:

•overall camber-morphing;

•upwards/downwards deflection and twisting of the final tip segment.

A state-of-art feedback logic based on a decentralized control strategy for shape control is outlined, including the results of dynamic stability analysis based on the blocks rational schematization within Matlab/Simulink® environment. Such study has been performed implementing a state-space model, considering also design parameters as the torsional stiffness and damping of the actuation chain. The design process is flowing towards an increasingly “robotized” system, which can be externally controlled to perform certain operations. Future developments will be the control laws implementation as well as the functionality test on a real flap prototype.
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Maurizio Arena, Maria Chiara Noviello, Francesco Rea, Francesco Amoroso, and Rosario Pecora "Control strategy of an electrically actuated morphing flap for the next generation green regional aircraft", Proc. SPIE 10595, Active and Passive Smart Structures and Integrated Systems XII, 105950K (16 March 2018);

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