Output Feedback Modular Adaptive Control of a Nonlinear Prototypical Wing Section
Document Type
Article
Publication Date
2004
Publication Title
Nonlinear Dynamics
Volume
37
First page number:
357
Last page number:
373
Abstract
The paper presents nonlinear adaptive control systems for the control of limit cycle oscillations of a prototypical wing section with structural nonlinearities using only output feedback. The chosen model describes the plunge and pitch motion of a wing. The model includes plunge and pitch nonlinearities, and has a single control surface for the purpose of control. Using a canonical representation of the aeroelastic system, a modular output feedback adaptive control system consisting of an input-to-state stabilizing controller and a passive identifier (an observer and adaptation law) is derived. In the closed-loop system, asymptotic stabilization of the pitch and plunge motion is accomplished. Simulation results show that the control system is effective in regulating the state vector to the origin in spite of large parameter uncertainties.
Keywords
Adaptive control systems; Aeroelasticity; Airplanes—Wings; Feedback control systems; Limit cycle oscillation control; Nonlinear aeroelastic system; Nonlinear systems
Permissions
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Repository Citation
Bhoir, N.,
Singh, S. N.
(2004).
Output Feedback Modular Adaptive Control of a Nonlinear Prototypical Wing Section.
Nonlinear Dynamics, 37
357-373.