Results 21 to 30 of about 3,220 (257)
Conversion control of a tilt tri-rotor unmanned aerial vehicle with modeling uncertainty
International Journal of Advanced Robotic Systems, 2021 The tilt-rotor unmanned aerial vehicle (TRUAV) has vertical take-off and landing and high-speed flight capabilities through conversion and reconversion modes, thereby presenting wide application prospects.
Chao Chen +4 more
doaj +1 more source
Flight Mechanics Modeling of the New Configuration Tilt-rotor
Hangkong gongcheng jinzhan, 2019 The flight mechanical model of tilt-rotor UAV is the basis of designing flight control rate and analyzing flight characteristics.Based on the engineering reality, the nonlinear flight mechanics model of a new configuration tilt-rotor UAV is set up ...
Zhang Lian +3 more
doaj +1 more source
A conical passive magnetic bearing with constant stiffness
Scientific Reports, 2022 A nested conical passive magnetic bearing is presented. The bearing consists of a nested conical rotor inside a conical stator, i.e. two coaxial tilted rings of permanent magnets, both with a rectangular cross section.
R. Bjørk, C. R. H. Bahl
doaj +1 more source
Influence of tilt angle and the number of guide vane blades towards the Savonius rotor performance
Energy Reports, 2021 Additional guide vane (GV) to the Savonius rotor is used to overcome the low rotor efficiency. This study is experimentally carried out to know the influence of guide vane in improving two blades Savonius rotor performance.
Waled Yahya +5 more
doaj +1 more source
Xibei Gongye Daxue XuebaoThe numerical calculation model for the aero-acoustic analysis of a tilt rotor was established by combining the free wake method and the FW-H (Ffowcs Williams-Hawkings) equation.
YUAN Mingchuan +4 more
doaj +1 more source
DronesThe distributed electric tilt-rotor Unmanned Aerial Vehicle (UAV) combines the vertical take-off and landing (VTOL) capability of helicopters with the high-speed cruise performance of fixed-wing aircraft, offering a transformative solution for Urban Air ...
He Zhu +4 more
doaj +1 more source
Four-Dimensional Gait Surfaces for a Tilt-Rotor—Two Color Map Theorem
Drones, 2022 This article presents the four-dimensional surfaces that guide the gait plan for a tilt-rotor. The previous gaits analyzed in the tilt-rotor research are inspired by animals; no theoretical base backs the robustness of these gaits.
Zhe Shen, Yudong Ma, Takeshi Tsuchiya
doaj +1 more source
Design and Implementation of a Novel Tilt-Rotor Tri-Copter UAV Configuration
Engineering ProceedingsHover-capable unmanned aerial vehicles (UAVs), including rotary-wing UAVs such as unmanned helicopters, multi-rotor drones, and tilt-rotor UAVs, are widely employed due to their hovering capabilities.
Zishi Shen, Fan Liu
doaj +1 more source
Aerodynamic Optimization Design of the Rotor Blade of a Tilt-rotor Aircraft
Hangkong gongcheng jinzhan, 2019 The aerodynamic design of tilt-rotor needs to synthetically consider the different requirements in helicopter mode and fixed-wing aircraft mode. The multi-objective genetic algorithm based on Kriging surrogate model is used to establish an optimization ...
Sun Kaijun +3 more
doaj +1 more source
Hurdle-Hop Simulation of Tilt-Rotor Aircraft Based on Optimal Control Theory
Xibei Gongye Daxue Xuebao, 2020 Aiming at simulating the hurdle-hop of tilt-rotor aircraft in forward flight near the ground, two models of numerical simulation and analysis based on optimal control theory were proposed.
doaj +1 more source