On the Design of Nonlinear Discrete-Time Adaptive Controller for damaged Airplane

سال انتشار: 1398
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 113

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شناسه ملی سند علمی:

JR_JASTI-12-2_006

تاریخ نمایه سازی: 8 مرداد 1402

چکیده مقاله:

airplane in presence of asymmetric left-wing damaged. ‎Variations of the aerodynamic parameters, mass and ‎moments of inertia, and the center of gravity due to ‎damage are all considered in the nonlinear ‎mathematical modeling. The proposed discrete-time ‎nonlinear MRAC algorithm applies the recursive least ‎square (RLS) algorithm as a parameter estimator as ‎well as the error between the real damaged dynamics ‎and a model of nominal undamaged aircraft to ‎generate the desired control commands. The discrete-‎time adaptive control algorithm is augmented with a ‎Nonlinear Dynamic Inversion (NDI) control strategy ‎and is implemented on the NASA generic transport ‎model (GTM) airplane while considering the effect of ‎wing damage and un-modeled actuator dynamics. The ‎stability of the proposed nonlinear adaptive controller is ‎demonstrated through Popov’s hyperstability theory. ‎Simulation results of the introduced controller are ‎compared with the classical discrete-time adaptive ‎control strategy. The results demonstrate the effective ‎performance of the proposed algorithm in controlling ‎the airplane in presence of abrupt asymmetric damage.‎

نویسندگان

Karim Dastgerdi

Faculty of Engineering, Islamic Azad University, Science and Research Branch, Tehran, Iran

Farshad Pazooki

Faculty of Engineering, Islamic Azad University, Science and Research Branch, Tehran, Iran.

Jafar Dr. Roshanian

Department of Aerospace Engineering, K. N. Toosi University of Technology, Tehran, Iran.

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