Nusyirwan, I. F. and Kung, Z. Y. (2016) Aircraft nonlinear optimal control using fuzzy gain scheduling. In: 6th Innovation in Aerospace Engineering and Technology, AEROTECH 2016, 8 November 2016 through 9 November 2016, Kuala Lumpur; Malaysia.
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Abstract
Fuzzy gain scheduling is a common solution for nonlinear flight control. The highly nonlinear region of flight dynamics is determined throughout the examination of eigenvalues and the irregular pattern of root locus plots that show the nonlinear characteristic. By using the optimal control for command tracking, the pitch rate stability augmented system is constructed and the longitudinal flight control system is established. The outputs of optimal control for 21 linear systems are fed into the fuzzy gain scheduler. This research explores the capability in using both optimal control and fuzzy gain scheduling to improve the efficiency in finding the optimal control gains and to achieve Level 1 flying qualities. The numerical simulation work is carried out to determine the effectiveness and performance of the entire flight control system. The simulation results show that the fuzzy gain scheduling technique is able to perform in real time to find near optimal control law in various flying conditions.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Uncontrolled Keywords: | Aerospace engineering, Control systems, Control theory, Eigenvalues and eigenfunctions, Flight control systems, Flight dynamics, Flight simulators, Linear systems, Root loci, Scheduling, Tracking (position) |
| Subjects: | T Technology > TL Motor vehicles. Aeronautics. Astronautics |
| Divisions: | Mechanical Engineering |
| ID Code: | 72974 |
| Deposited By: | Muhammad Atiff Mahussain |
| Deposited On: | 21 Nov 2017 08:17 |
| Last Modified: | 21 Nov 2017 08:17 |
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