Results 61 to 70 of about 3,121 (160)

Overall design and control analysis of a novel dual-axis tilt-rotor aircraft

Hangkong gongcheng jinzhan
The tilt-rotor aircraft combines the capabilities of vertical takeoff and landing with efficient high-speed cruising, making it suitable for short-haul low-altitude transportation.
DENG Li, LU Dongping, ZHANG Wei, WANG Nan, LEI Zonglin, YAN Junze, YANG Jianting   +6 more
doaj   +1 more source

Study on aerodynamic characteristics of tilting wing unmanned aerial vehicle in transition state

Hangkong gongcheng jinzhan
In response to the problem of the continuous tilting transition process of the configuration of unmanned aerial vehicle with complex and unsteady aerodynamic characteristics, the real blade is replaced with a virtual propeller disk model, the rotor flow ...
MA Kai, LIN Changliang, PAN Minglong, WANG Xiong, LU Yang   +4 more
doaj   +1 more source

Real-Time TECS Gain Tuning Using Steepest Descent Method for Post-Transition Stability in Unmanned Tilt-Rotor eVTOLs

Drones
Unmanned tilt-rotor electric Vertical Take-Off and Landing (eVTOL) aircraft face significant control challenges during the transition from hover to forward flight, particularly when using open-source autopilot systems that rely on open-loop tilt control ...
Choonghyun Lee, Ngoc Phi Nguyen, Sangjun Bae, Sung Kyung Hong   +3 more
doaj   +1 more source

Hierarchical gain scheduling based tilt angle guided robust control during mode transition for tilt-rotor unmanned aircraft vehicle

International Journal of Advanced Robotic Systems
Tilt-rotor unmanned aircraft vehicle has the potential to combine vertical take-off and landing capability with efficient, high-speed cruise flight. However, the mode transition process is risky owing to the internal continuous time change of aerodynamic
Hongyu Nie, Feng Gu, Yuqing He
doaj   +1 more source

An Over-Actuated Hexacopter Tilt-Rotor UAV Prototype for Agriculture of Precision: Modeling and Control. [PDF]

Sensors (Basel)
Pimentel GO, Santos MFD, Lima J, Mercorelli P, Fernandes FM.   +4 more
europepmc   +1 more source

Control Allocation of a Tilting Rotor Hexacopter

, 2017
The ”Voliro” system developed during a one-year student project at ETH Zurich, is a novel concept of a rotary-wing UAV, designed as a multicopter with a classical planar configuration, whereby the thrust motors can be tilted around their axes. This allows the system to decouple position and orientation as well as move omnidirectionally. This bachelor
openaire   +2 more sources

Rotor Attitude Estimation for Spherical Motors Using Geometry-Constrained Kalman Transformer Algorithm in Monocular Vision. [PDF]

Sensors (Basel)
Liu F, Tian B, Wen F, Yu L, Yu T, Li M.
europepmc   +1 more source

EasyVoid: A Handheld Coandă Effect Uroflowmeter for Accurate and Portable Measurement of Urinary Flow Dynamics. [PDF]

IEEE J Transl Eng Health Med
Chang R, Chen YC, Chen HW, Zeng RH, Prakash M.   +4 more
europepmc   +1 more source

Enhanced geometry control powered by AI for UAVS with a robotic arm for compensating for disturbances. [PDF]

Sci Rep
Oqda K, El-Gendy EM, Marie HS, Akalla M.
europepmc   +1 more source

Adaptive fractional-order non-singular terminal sliding mode control for omnidirectional quadrotors based on WRBF neural network. [PDF]

PLoS One
Ma R, Gu Q, Ding L, Li Y, Sun C, Wu H.
europepmc   +1 more source