Modeling and Control of a Fixed-Wing High-Speed UAV

Yıl 2022, Cilt: 03 Sayı: 01, 35 - 44, 28.06.2022

Mesut Bilici

Öz

Due to their inventiveness in achieving high speeds while maintaining excellent agility, high-speed UAVs will be an interesting field of study in today's aviation technology. In this study, modeling and control of a fixed-wing high-speed UAV are performed. Geometric design and aerodynamic analysis are executed of the UAV with the help of some CFD software. Flight performance after a doublet control surface disturbance is evaluated with 6DOF flight simulations in both longitudinal and lateral directions by a developed MATLAB/Simulink code. Two kinds of different linear controllers, which are PID and LQR-I, are designed to hold the pitch angle of the UAV in the desired value. The time responses of the controllers are represented, and the elevator deflection effort is evaluated. Finally, a compulsive pitch angle is wanted to be tracked by the two controllers, and their responses are compared in terms of performance and stability.

Anahtar Kelimeler

UAV, High-speed, 6DOF simulation, PID controller, LQR controller

Kaynakça

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