Title :
Flight control reconfiguration using adaptive methods
Author :
Groszkiewicz, Joseph E. ; Bodson, Marc
Author_Institution :
Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA
Abstract :
The problem of reconfigurable flight control is investigated, focusing on model reference adaptive control and least-squares identification algorithms. Results for the implementation of an input error direct adaptive control algorithm are given. A detailed aircraft model is used in simulations. An emphasis of the discussion is on the multivariable nature of the adaptive control problem. The results demonstrate the ability of the adaptive algorithms to maintain level flight after a failure, to restore tracking of the pilot commands despite the loss of actuator effectiveness, and to coordinate the use of the remaining active control surfaces to guarantee the decoupling between the rotational axes. The applicability and the benefits of a recently-proposed stabilized algorithm for recursive least-squares identification are also demonstrated
Keywords :
aircraft control; least squares approximations; model reference adaptive control systems; multivariable control systems; recursive estimation; actuator effectiveness; adaptive methods; flight control reconfiguration; input error direct adaptive control; level flight; model reference adaptive control; reconfigurable flight control; recursive least-squares identification; tracking; Adaptive algorithm; Adaptive control; Aerospace control; Aircraft; Control systems; Costs; Differential equations; Elevators; Error correction; Programmable control;
Conference_Titel :
Decision and Control, 1995., Proceedings of the 34th IEEE Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-2685-7
DOI :
10.1109/CDC.1995.480248