Robust output feedback control for aeroelastic vibration suppression of a 2-DOF airfoil under quasi-steady flow

Zhang, K, Manaffam, S, Marzocca, P and Behal, A 2018, 'Robust output feedback control for aeroelastic vibration suppression of a 2-DOF airfoil under quasi-steady flow', Journal of Vibration and Control, vol. 24, no. 19, pp. 4604-4619.


Document type: Journal Article
Collection: Journal Articles

Title Robust output feedback control for aeroelastic vibration suppression of a 2-DOF airfoil under quasi-steady flow
Author(s) Zhang, K
Manaffam, S
Marzocca, P
Behal, A
Year 2018
Journal name Journal of Vibration and Control
Volume number 24
Issue number 19
Start page 4604
End page 4619
Total pages 16
Publisher Sage Publications Ltd.
Abstract In this paper, a robust output feedback control design is developed for suppression of aeroelastic vibration of a 2-DOF nonlinear wing section system. The aeroelastic system operates in a quasi-steady aerodynamic incompressible flowfield and is actuated using a combination of a leading-edge (LE) and a trailing-edge (TE) flap. By only utilizing measurements of pitching and plunging deflections, an innovative Lyapunov-based procedure is used to design sliding mode control inputs for the LE and TE control surface deflections. The closed-loop system is shown to have semi-global asymptotic stability even in the presence of model uncertainty and unknown external gust loading. Extensive simulation results under a variety of scenarios show the effectiveness of the control strategy.
Subject Aircraft Performance and Flight Control Systems
Flight Dynamics
Control Systems, Robotics and Automation
Keyword(s) Aeroservoelasticity
disturbance mitigation
MIMO control
nonlinear control
robust control
DOI - identifier 10.1177/1077546317731209
Copyright notice © The Author(s) 2017
ISSN 1077-5463
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