Proceedings ArticleDOI
Transition Flight Dynamics of a Dual Tilt-Wing UAV *
TLDR
A non-linear mathematical model is developed that includes the UAV complete dynamics, which presents significant changes in aerodynamic characteristics, especially during the transition flight of a hybrid UAV of Dual Tilt-Wing type.Abstract:
A hybrid unmanned autonomous vehicle (UAV) combines the high-speed cruise capability of a fixed-wing airplane, with the hovering flight, vertical take-off and landing capabilities of a helicopter. The change between both flight modes refers to as a transition flight process. This paper presents the flight dynamics during the transition stage of a hybrid UAV of Dual Tilt-Wing type. A non-linear mathematical model is developed that includes the UAV complete dynamics, which presents significant changes in aerodynamic characteristics, especially during the transition flight. These changes are analyzed and characterized by flight tests and CFD simulations. The adaptation to the variation of aerodynamic characteristics caused by tilt angle changes of transition system is verified, so a PD controller for altitude is implemented.read more
Citations
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PID Gain Scheduling for 3D Trajectory Tracking of a Quadrotor with Rotating and Extendable Arms
TL;DR: In this paper, a control strategy based on Gains Scheduling using a conventional Proportional Integral Derivative (PID) controller is proposed, where its variable gains are well determined for each aerial morphology.
Proceedings ArticleDOI
Nonlinear P Type Controller Applied on Lateral Longitudinal Distances Control for Autonomous Formation Flight
Omer Abdo,Muhsin Hancer +1 more
TL;DR: In this article , a guidance-control system for a one leader-one-follower autonomous formation flight system flying in a single plane is presented. But, this type of flight is dangerous due to the small relative distances between agents, which raises the possibility of collusions between aircrafts.
Journal ArticleDOI
Aerodynamic analysis of a logistics UAV wing with compound ducted rotor
Y. Guan,Yong-Ping Li,Peng Zeng +2 more
TL;DR: In this article , a composite UAV wing with a composite ducted rotor, which combines fixed wing and rotary-wing, is proposed to solve the problems of short battery life and low transportation safety of logistics drones.
References
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Journal ArticleDOI
Design and construction of a novel quad tilt-wing UAV
Ertuğrul Çetinsoy,Serhat Dikyar,Cevdet Hançer,Kaan Taha Öner,Efe Sırımoğlu,Mustafa Unel,Mahmut Faruk Aksit +6 more
TL;DR: In this paper, an electric powered quad tilt-wing UAV that is capable of vertical takeoff and landing (VTOL) like a helicopter and long duration horizontal flight like an airplane is presented.
Proceedings ArticleDOI
A review on the platform design, dynamic modeling and control of hybrid UAVs
TL;DR: This article presents a review on the platform design, dynamic modeling and control of hybrid Unmanned Aerial Vehicles (UAVs), a newer type of UAV that integrates the beneficial features of both conventional ones.
Proceedings ArticleDOI
Quad Tilt Wing VTOL UAV: Aerodynamic Characteristics and Prototype Flight Test
TL;DR: The essential aerodynamic characteristics of the QTW derived from wind tunnel data are summarized in this paper, and a tandem wing concept which achieves both hovering and cruising stability has been applied to design the prototype UAV.
Journal ArticleDOI
Flight Controller Design and Demonstration of Quad-Tilt-Wing Unmanned Aerial Vehicle
Masayuki Sato,Koji Muraoka +1 more
TL;DR: In this paper, the authors proposed a gain-scheduled flight controller for a quad-tilt-wing UAV that has a tandem wing that tilts between vertical to horizontal positions.
Proceedings ArticleDOI
Robust LPV H ∞ gain-scheduled hover-to-cruise conversion for a tilt-wing rotorcraft in the presence of CG variations
TL;DR: This paper describes the development and analysis of gain-scheduled, multi-variable Hinfin control law for the conversion of a linear parameter varying (LPV) model of a high-speed autonomous rotorcraft vehicle (HARVee), an experimental tilt-wing aircraft.