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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/13259

Title: Nonlinear tracking control of an elastically supported flapping thin airfoil
Authors: Al-Saif, K.
Al-Majed, M.I.
Keywords: Chaos; Feedback linearization; Fluid-solid interaction; Self-excited
Issue Date: 2004
Publisher: SAGE Publications
Citation: JVC/Journal of Vibration and Control Volume 10, Issue 6, June 2004, Pages 779-794
Abstract: A control law for a self-excited system using state feedback linearization and coordinate transformation is developed. The system consists of an elastically supported hinged thin airfoil, which is subjected to a uniform steady airflow. A nonlinear aerodynamic model is used to account for the fluid-solid interaction mechanism. A chaotic behavior of the open-loop system at certain control parameters is observed experimentally and checked numerically. It is shown that the controllability of the system is guaranteed using a torque source at the leading edge of the airfoil. Furthermore, good tracking of time-varying desired angle of attack is achieved using the developed controller, Finally, a SIMULINK® model is developed to facilitate time-domain analysis, control design and future real-time control implementations.
URI: http://hdl.handle.net/123456789/13259
ISSN: 10775463
Appears in Collections:College of Engineering

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