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Machines, Volume 13, Issue 6 (June 2025) – 1 article

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18 pages, 4228 KiB  
Article
Transition Process Control of Tiltrotor Aircraft Based on Fractional-Order Model Reference Adaptive Control
by Junkai Liang, Hui Ye, Yaohua Shen and Dawei Wu
Machines 2025, 13(6), 439; https://doi.org/10.3390/machines13060439 (registering DOI) - 22 May 2025
Abstract
To address the critical challenge of controlling tiltrotor aircraft during transition mode, this paper proposes a fractional-order model reference adaptive control (FO-MRAC) method based on the unique modeling of the tiltrotor aircraft. A nonlinear model capturing the dynamic characteristics of the tiltrotor aircraft [...] Read more.
To address the critical challenge of controlling tiltrotor aircraft during transition mode, this paper proposes a fractional-order model reference adaptive control (FO-MRAC) method based on the unique modeling of the tiltrotor aircraft. A nonlinear model capturing the dynamic characteristics of the tiltrotor aircraft during the transition mode is developed based on an accurate analysis of the forces and moments acting on key components. This model is subsequently linearized to obtain a stable flight envelope. Considering the complexity of transition, the FO-MRAC method is designed based on the shift of the equilibrium point for superior parameter tuning and disturbance rejection. Then, the stability of the closed-loop system is analyzed using the Lyapunov stability theory. Finally, an experimental platform is constructed to verify the validity of the aerodynamic modeling and the designed control method. Full article
(This article belongs to the Section Automation and Control Systems)
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