Results 1 to 10 of about 3,121 (162)

Study of Modeling and Optimal Take-Off Scheme for a Novel Tilt-Rotor UAV [PDF]

open access: yesSensors, 2022
The optimal trajectory planning for a novel tilt-rotor unmanned aerial vehicle (UAV) in different take-off schemes was studied. A novel tilt-rotor UAV that possesses characteristics of both tilt-rotors and a blended wing body is introduced.
Zelong Yu, Jingjuan Zhang, Xueyun Wang
doaj   +2 more sources

Dynamic Electromagnetic Scattering Simulation of Tilt-Rotor Aircraft in Multiple Modes [PDF]

open access: yesSensors, 2023
To study the electromagnetic scattering of tilt-rotor aircraft during multi-mode continuous flight, a dynamic simulation approach is presented. A time-varying mesh method is established to characterize the dynamic rotation and tilting of tilt-rotor ...
Zhongyang Fei   +4 more
doaj   +2 more sources

Mathematical modeling and control of a tilt-rotor aircraft [PDF]

open access: yesAerospace Science and Technology, 2015
This paper presents a novel model of large-size tilt-rotor aircraft, which can operate as a helicopter as well as being capable of transition to fixed-wing flight. Aerodynamics of the dynamic large-size tilt-rotors based on blade element method is analyzed during mode transition.
, Lilong Cai
exaly   +4 more sources

PPO-Based Attitude Controller Design for a Tilt Rotor UAV in Transition Process

open access: yesDrones, 2023
The complex aerodynamic changes of the tilt-rotor UAV (TRUAV) in the transition process show strong nonlinearity, which brings a great impact on the stability of the vehicle attitude.
Rui Yang, Changping Du, Yao Zheng
exaly   +3 more sources

Control and flight test of a tilt-rotor unmanned aerial vehicle

open access: yesInternational Journal of Advanced Robotic Systems, 2017
Tilt-rotor unmanned aerial vehicles have attracted increasing attention due to their ability to perform vertical take-off and landing and their high-speed cruising abilities, thereby presenting broad application prospects.
Daibing Zhang, Lincheng Shen
exaly   +2 more sources

Aerodynamic Analysis of Rotor Spacing and Attitude Transition in Tilt-Powered Coaxial Rotor UAV [PDF]

open access: yesSensors
Complex aerodynamic characteristics and optimal control during the attitude transition of tilt-powered coaxial twin-rotor unmanned aerial vehicles (UAVs) represent key challenges in flight control design.
Wei Wu   +4 more
doaj   +2 more sources

Numerical simulation of the transition flight aerodynamics of cross-shaped quad-tiltrotor UAV [PDF]

open access: yesScientific Reports
In order to enhance the stability of the tilt transition process, a new configuration of Quad-Tiltrotor UAV was presented in this paper. Firstly, numerical simulation was used to calculate and analyze the aerodynamic interaction between the front rotor ...
Siliang Du, Yi Zha
doaj   +2 more sources

Design, Modeling, and Control of a Composite Tilt-Rotor Unmanned Aerial Vehicle

open access: yesDrones
Tilt-rotor unmanned aerial vehicles combine the advantages of multirotor and fixed-wing aircraft, offering features like rapid takeoff and landing, extended endurance, and wide flight conditions.
Zhuang Liang   +3 more
exaly   +3 more sources

Riemann’s theorem for quantum tilted rotors [PDF]

open access: yesPhysical Review C, 1992
8 pages, Phys.
Rosensteel, G., Goodman, A. L.
openaire   +3 more sources

The Investigation on L1 Adaptive Control of the Tilt-Rotor Aircraft

open access: yesInternational Journal of Aerospace Engineering, 2021
Considering the uncertainty of the flight dynamics model of the tilt-rotor aircraft in different flight modes, an L1 adaptive controller for full flight modes control system of tilt-rotor aircraft is designed.
Quanlong Chen   +5 more
doaj   +1 more source

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