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Robust Stabilization of Uncertain Aircraft Active Systems

Département de génie de la production automatisée, École de technologie supérieure, 1100, rue Notre Dame Ouest, H3C 1K3 Montréal, Canada, s_ibrir{at}gpa.etsmtl.ca

Ruxandra Botez

Département de génie de la production automatisée, École de technologie supérieure, 1100, rue Notre Dame Ouest, H3C 1K3 Montréal, Canada

Often, dynamical aircraft systems cannot always be accurate because some approximation assumptions, imprecisions or uncertainties may have been introduced or imposed during the modeling process. Mathematical models of aircraft systems always contain uncertain elements, which model the designer’s lack of knowledge about some parameter values, disturbances and unmodeled dynamics. Using both Lyapunov’s direct method and the linear matrix inequality approach, we develop the controller design procedure, and give a definite feel for stability analysis and robust control for aircraft systems with significant uncertainty. An example of an uncertain thrust vectoring aircraft is studied to illustrate our control design strategy.

Key Words: Aircraft • uncertain systems • stabilization • linear matrix inequality

Journal of Vibration and Control, Vol. 11, No. 2, 187-200 (2005)
DOI: 10.1177/1077546305041366


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