Title :
Design of longitudinal variable structure flight control system for the F-18 aircraft model with parameter perturbations
Author :
Jafarov, Elbrous M. ; Tasaltm, R.
Author_Institution :
Dept. of Aeronaut. & Astronaut. Eng., Istanbul Tech. Univ., Turkey
Abstract :
In this paper a new variable structure control law for uncertain MIMO systems is investigated. The conditions for the existence of a sliding mode is derived. The asymptotic stability of the VSS is studied by using the Lyapunov V-function method. By using these conditions we have successfully designed a longitudinal position and tracking variable structure control system for the F-18 aircraft MIMO model with parameter perturbations. The longitudinal dynamics of F-18 aircraft with parameter perturbations is considered. Finally, simulation results for VSS both with chattering and free of chattering cases are presented to show the effectiveness of the design methods
Keywords :
Lyapunov methods; MIMO systems; aircraft control; asymptotic stability; attitude control; control system CAD; dynamics; military aircraft; tracking; uncertain systems; variable structure systems; F-18 aircraft; Lyapunov method; MIMO systems; aircraft control; aircraft model; asymptotic stability; dynamics; flight control system; longitudinal control; parameter perturbations; tracking; uncertain systems; variable structure systems; Aerospace control; Aircraft; Asymptotic stability; Control systems; Eigenvalues and eigenfunctions; MIMO; Sliding mode control; Uncertainty; Variable structure systems; Vectors;
Conference_Titel :
Computer Aided Control System Design, 1999. Proceedings of the 1999 IEEE International Symposium on
Conference_Location :
Kohala Coast, HI
Print_ISBN :
0-7803-5500-8
DOI :
10.1109/CACSD.1999.808716
