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Robust flight control design for a turn coordination system with parameter uncertainties

Legowo, Ari (2009) Robust flight control design for a turn coordination system with parameter uncertainties. In: Proceedings of the Seminar on Research Findings. IIUM Press, Kuala Lumpur, pp. 431-442. ISBN 9789833855780

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This paper presents a method of robust control system design foe aircraft flight control systems with the existence of uncertainty parameters such as stability and control derivatives resulted by parameter identification process using real test data. A nonlinear model of aircraft turn coordination system is considered. The problem is to find the optimal controller by using H..optimal control method combined with a quasi-Newton optimization method. The present method designs the gain of the cross pass channel for the aileron and rudder interconnect, which causes nonlinearity of the system. The robust controller design is qualified in designing the H.. optimal control under a given value of the 'nonlinear' gain, and sequentially determining the optimal 'nonlinear' gain subject to minimize the error performance of the turn coordination system by using the quasi-Newton method. The perturbations of the uncertainties model have structured uncertainties constructed by the differences between the aerodynamic coefficients derived by parameter identification process and wind tunnel result. The proposed method is applied to the real flight test data of N250 PA-1 aircraft.

Item Type: Book Chapter
Additional Information: 5334/7109
Uncontrolled Keywords: robust flight, control design
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering
Depositing User: Sakinah Kamaludin
Date Deposited: 23 Nov 2011 14:46
Last Modified: 23 Nov 2011 14:46
URI: http://irep.iium.edu.my/id/eprint/7109

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