Results 11 to 20 of about 3,121 (160)

Aerodynamic Optimization Design of the Rotor Blade of a Tilt-rotor Aircraft

open access: yesHangkong 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   +2 more sources

Asynchronous Tilt Transition Control of Quad Tilt Rotor UAV

open access: yesDrones
To address the challenges inherent in the transition flight control of QTR UAVs, this paper proposes an asynchronous tilt transition control framework that integrates NDIC with an ESO.
Xuebing Li   +4 more
doaj   +2 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

Study on modular design method of tiltable rotor system for quad tilt-rotor unmanned aircraft

open access: yesHangkong gongcheng jinzhan, 2023
The tilt-rotor unmanned aerial vehicle has the obvious trend of multi-rotor development, and modular design of tiltable rotor system is helpful to integrate assembly and can reduce design duplication.
SUN Xiaobin, XU Jinfa
doaj   +1 more source

Mathematical Modelling of Gimballed Tilt-Rotors for Real-Time Flight Simulation

open access: yesAerospace, 2020
This paper introduces a novel gimballed rotor mathematical model for real-time flight simulation of tilt-rotor aircraft and other vertical take-off and landing (VTOL) concepts, which improves the previous version of a multi-purpose rotor mathematical ...
Anna Abà   +3 more
doaj   +1 more source

Research on Design Method of Short Take-off Performance of Tilt-rotor Aircraft during Preliminary Design Stage

open access: yesHangkong 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

EXPERIMENTAL VALIDATION OF TILT-ROTOR AERODYNAMIC PREDICTIONS [PDF]

open access: yes, 2014
A comparison of experimental data with several numerical predictions of the aerodynamic loads on the ERICA model is presented. The calculations are carried out by several Partners of the NICETRIP consortium, with different codes, turbulence models and grids, with the objective of validating the predictive capability of the CFD tools.
J. Decours   +5 more
openaire   +4 more sources

Modeling and control of a tilt tri-rotor airplane [PDF]

open access: yes2012 American Control Conference (ACC), 2012
A helicopter offers the capability of hover, slow forward displacement, vertical take-off and landing while a conventional airplane has the performance of fast forward movement, long reach and superior endurance. The aim of this paper is to present the modelling and control of a tilt tri-rotor UAV's configuration that combines the advantages of both ...
Duc Anh Ta   +2 more
openaire   +1 more source

Flight Dynamics Modeling and Dynamic Stability Analysis of Tilt-Rotor Aircraft

open access: yesInternational 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

A Fuzzy Backstepping Attitude Control Based on an Extended State Observer for a Tilt-Rotor UAV

open access: yesAerospace, 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

Home - About - Disclaimer - Privacy