Gain-scheduled lateral control of the F-14 aircraft during powered approach landing
by
I. Fialho, G.J. Balas, A.K. Packard, J. Renfrow, and C. Mullaney
in
AIAA Journal of Guidance, Dynamics and Control, vol. 23, no. 3, 2000.
Category: Journal Article
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Abstract:
The design of a linear fractional transformation gain-scheduled controller, scheduled on angle of attack, for the F-14 aircraft lateral-directional axis is presented. The controller is designed for the powered approach ight phase, during which the angle of attack and corresponding airspeed varies from 2 deg and 182 kn to 14 deg and 126 kn. A linear fractionalmodel of the lateral dynamics is constructed based on four linearizedmodels that correspond to 2, 6, 10.5, and 14 deg angle of attack. Using parameter-dependent functions, a controller is designed that depends in a linear fractionalmanner on angle of attack and delivers uniform handling quality over angle-of-attack variations that lie between 214 deg. The resulting controller performs well when implemented in a nonlinear simulation model of the F-14 aircraft.
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