Robust flight control of aircraft in the presence of uncertainties

Author

Lyashevskiy, Sergey

Author_Institution

Dept. of Electr. Eng., Purdue Univ., Indianapolis, IN, USA

fYear

1996

fDate

15-18 Sep 1996

Firstpage

25

Lastpage

30

Abstract

The main objective of the paper is to design the robust algorithms for advanced aircraft. To improve dynamic performance, increase manoeuvrability, and expand an operating envelope, the robust configurations for stabilization and robust tracking of flight vehicles are proposed. We formulate criteria for quadratic stabilizability of uncertain systems via a class of linear controllers using the Hamilton-Jacobi-Bellman theory. Necessary and sufficient conditions for robustness are studied. The robust procedure is applied to the ninth-order model of the F-18 fighter aircraft. Modeling results are presented to demonstrate the dynamic performance of the resulting nonlinear closed-loop system

Keywords

aircraft control; closed loop systems; control system synthesis; dynamics; military aircraft; nonlinear control systems; robust control; tracking; uncertain systems; F-18 fighter aircraft; Hamilton-Jacobi-Bellman theory; aircraft control; dynamics; flight control; linear controllers; manoeuvrability; necessary condition; nonlinear closed-loop system; robust control; stabilization; sufficient condition; tracking; uncertain systems; Aerospace control; Aircraft; Algorithm design and analysis; Control systems; Robust control; Robustness; Uncertain systems; Uncertainty; Vehicle dynamics; Vehicles;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Applications, 1996., Proceedings of the 1996 IEEE International Conference on

Conference_Location

Dearborn, MI

Print_ISBN

0-7803-2975-9

Type

conf

DOI

10.1109/CCA.1996.558587

Filename

558587