Results 61 to 70 of about 6,732 (195)
International Journal of Rotating Machinery, 2012 Most industrial rotors supported in active magnetic bearings (AMBs) are operated well below the first bending critical speed. Also, they are usually controlled using proportional, integral and derivative controllers, which are set up as modally uncoupled
Timothy Dimond +4 more
doaj +1 more source
Accuracy of Tilt Rotor Hover Performance Predictions [PDF]
The accuracy of various methods used to predict tilt rotor hover performance was established by comparing predictions with large-scale experimental data. A wide range of analytical approaches were examined.
Felker, Fort F.
core +1 more source
Thrust Vectoring Control of a Novel Tilt-Rotor UAV Based on Backstepping Sliding Model Method. [PDF]
Sensors (Basel), 2023 Yu Z, Zhang J, Wang X.
europepmc +1 more source
NASA/HAA Advanced Rotorcraft Technology and Tilt Rotor Workshop. Volume 7: Tilt Rotor Session [PDF]
The technical characteristics of the XV-15 aircraft were discussed. Program objectives, concept evaluation, tilt rotor experiments and civil market applications are presented.
core +1 more source
Establishment and Verification of the UAV Coupled Rotor Airflow Backward Tilt Angle Controller
DronesAt present, all the flight controllers of agricultural UAVs cannot accurately and quickly control the influencing factors of the UAV coupled rotor airflow backward tilt angle during the application process.
Han Wu +9 more
doaj +1 more source
A Dynamic RCS and Noise Prediction and Reduction Method of Coaxial Tilt-Rotor Aircraft Based on Phase Modulation. [PDF]
Sensors (Basel), 2022 Wang Z, Huang J, Yi M, Lu S.
europepmc +1 more source
Experimental and analytical studies in tilt-rotor aeroelasticity [PDF]
An overview of an experimental and analytical research program underway for studying the aeroelastic and dynamic characteristics of tilt-rotor VTOL aircraft is presented.
Kvaternik, R. G.
core +1 more source
IEEE AccessThis study addresses the challenge of excessive downwash generated by uncrewed aerial vehicles (UAVs) during pinpoint weeding in agriculture. We propose a novel UAV design incorporating adaptive rotors that can tilt during flight to reduce the downward ...
Kenki Miyahara +3 more
doaj +1 more source
Design, Analysis, and Testing of a Hybrid VTOL Tilt-Rotor UAV for Increased Endurance. [PDF]
Sensors (Basel), 2021 Panigrahi S, Krishna YSS, Thondiyath A.
europepmc +1 more source
Improvements to tilt rotor performance through passive blade twist control [PDF]
A passive blade twist control is presented in which the twist distribution of a tilt rotor blade is elastically changed as a function of rotor speed. The elastic twist deformation is used to achieve two different blade twist distributions corresponding ...
Nixon, Mark W.
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