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Open AccessArticle
Time Optimal Altitude-Hold Flight Mode Transition Strategy for a Class of Ducted Fan Tail Sitter UAV
by
Zihuan Cheng
Zihuan Cheng
and
Hailong Pei
Hailong Pei *
School of Automation, South China University of Technology, Guangzhou 510640, China
*
Author to whom correspondence should be addressed.
Aerospace 2024, 11(8), 654; https://doi.org/10.3390/aerospace11080654 (registering DOI)
Submission received: 21 June 2024
/
Revised: 3 August 2024
/
Accepted: 9 August 2024
/
Published: 11 August 2024
Abstract
For special tail sitter configurations such as the ducted fan tail sitter unmanned aerial vehicle (UAV), the widely used trajectory planning methodology based on differential flatness might not be applicable due to complex aerodynamic coupling effects. As a result, the flight mode transition remains a challenging task. In this paper, we address the time optimal altitude-hold flight mode transition issue for a class of ducted fan tail sitter UAV. The foundation of the framework is the dynamic transition corridor in which the limitation of jerk is particularly considered, aiming to thoroughly reflect the dynamic feature of aggressive maneuvers. Based on this, we propose a time optimal strategy to generate feasible altitude-hold transition trajectories. Simultaneous, by fully utilizing the manifestation of time optimal altitude-hold flight behavior revealed by the transition corridor, we try to tackle the time optimal altitude-hold transition by means of a novel model-free control scheme. Comparative simulations show that both of the transition strategies achieve satisfactory performance on time optimal altitude-hold transition in the absence of disturbance, while the model-free control scheme exhibits better robustness under external disturbance.
Share and Cite
MDPI and ACS Style
Cheng, Z.; Pei, H.
Time Optimal Altitude-Hold Flight Mode Transition Strategy for a Class of Ducted Fan Tail Sitter UAV. Aerospace 2024, 11, 654.
https://doi.org/10.3390/aerospace11080654
AMA Style
Cheng Z, Pei H.
Time Optimal Altitude-Hold Flight Mode Transition Strategy for a Class of Ducted Fan Tail Sitter UAV. Aerospace. 2024; 11(8):654.
https://doi.org/10.3390/aerospace11080654
Chicago/Turabian Style
Cheng, Zihuan, and Hailong Pei.
2024. "Time Optimal Altitude-Hold Flight Mode Transition Strategy for a Class of Ducted Fan Tail Sitter UAV" Aerospace 11, no. 8: 654.
https://doi.org/10.3390/aerospace11080654
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