Results 11 to 20 of about 25,565 (312)
Hangkong gongcheng jinzhan, 2018 Tilt-rotor aircraft has both vertical take-off and high-speed cruise capability, and has been widely applied in many fields. It is of great significance to study the take-off performance design of the tilt-rotor aircraft in the short take-off mode.
Qi Wantao
doaj +1 more source
A Fuzzy Backstepping Attitude Control Based on an Extended State Observer for a Tilt-Rotor UAV
Aerospace, 2022 In order to overcome the influence of internal and external disturbances caused by rotor tilt motion and gust disturbance on the full flight mode control of a tilt-rotor unmanned aerial vehicle (UAV), a design method using fuzzy backstepping control ...
Suiyuan Shen, Jinfa Xu, Qingyuan Xia
doaj +1 more source
Flight Dynamics Modeling and Dynamic Stability Analysis of Tilt-Rotor Aircraft
International Journal of Aerospace Engineering, 2019 The tilt-rotor aircraft has often been proposed as a means to increase the maximum speed of the conventional helicopter. The tilt-rotor aircraft consists of three primary flight modes that are the helicopter flight mode in low forward speed flight ...
Ke Lu +3 more
doaj +1 more source
Modeling and Analysis of Micro-Spacecraft Attitude Sensing with Gyrowheel
Sensors, 2016 This paper proposes two kinds of approaches of angular rate sensing for micro-spacecraft with a gyrowheel (GW), which can combine attitude sensing with attitude control into one single device to achieve a compact micro-spacecraft design.
Xiaokun Liu +3 more
doaj +1 more source
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
Stability of a tilt-controlling axial gap self-bearing motor with single-stator
Mechanical Engineering Journal, 2017 This paper discusses the stability of a tilt-controlling axial gap self-bearing motor with a single stator. The motor consists of a stator and a disc rotor and is capable of controlling motor torque, axial position, and tilt angles.
Satoshi UENO, Ryo ISEKI, Changan JIANG
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
PPO-Based Attitude Controller Design for a Tilt Rotor UAV in Transition Process
Drones, 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 +5 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
Flight Mechanics and Control of Tilt Rotor/Tilt Wing Unmanned Aerial Vehicles: A Review [PDF]
AUT Journal of Modeling and Simulation, 2021 A literature review of the Tilt Rotor/Tilt Wing (TR/TW) Unmanned Aerial Vehicles (UAVs) is presented in this paper from the flight mechanics and control points of view. Firstly, the advantages as well as the challenges of the TR/TW UAVs are studied, from
Seyed Amin Bagherzadeh +2 more
doaj +1 more source