Results 141 to 150 of about 66,325 (272)

Euler solution of multiblade rotor flow [PDF]

A numerical method for solving the Euler equations for multiblade rotors has been developed and some preliminary results reported. The numerical scheme is a combination of several recent methods and algorithm improvements, adapted to the particular ...
Chen, C. L., Mccroskey, W. J., Ying, S. X.   +2 more
core   +1 more source

Experimental and numerical investigation on a trimaran airwake, geometry modification. [PDF]

Heliyon, 2023
Vakilabadi KA, Ghafari HR, Ghassemi H.
europepmc   +1 more source

Modeling and Robust Tracking Decoupling Control of a Coaxial Unmanned Helicopter Based on the Improved Alternating Direction Method of Multipliers. [PDF]

Comput Intell Neurosci, 2022
Xu A, Wang F, Chen M.
europepmc   +1 more source

Helicopter rotor wake geometry and its influence in forward flight. Volume 1: Generalized wake geometry and wake effect on rotor airloads and performance [PDF]

An analytic investigation to generalize wake geometry of a helicopter rotor in steady level forward flight and to demonstrate the influence of wake deformation in the prediction of rotor airloads and performance is described.
Egolf, T. A., Landgrebe, A. J.
core   +1 more source

Application of Artificial Neural Networks to a Model of a Helicopter Rotor Blade for Damage Identification in Realistic Load Conditions. [PDF]

Sensors (Basel)
Ballarin P, Sala G, Macchi M, Roda I, Baldi A, Airoldi A.   +5 more
europepmc   +1 more source

Correlation of SA349/2 helicopter flight-test data with a comprehensive rotorcraft model [PDF]

A comprehensive rotorcraft analysis model was used to predict blade aerodynamic and structural loads for comparison with flight test data. The data were obtained from an SA349/2 helicopter with an advanced geometry rotor.
codes., Yamauchi, Gloria K.
core   +1 more source

Research on Attitude Detection and Flight Experiment of Coaxial Twin-Rotor UAV. [PDF]

Sensors (Basel), 2022
You D, Hao Y, Xu J, Yang L.
europepmc   +1 more source

CFD-enabled sustainable design and manufacturing of cooling fan for unmanned helicopter. [PDF]

Sci Rep
Si L, Liu Z, Xiao N, Zhang Y, Liu Y, Deng S, Li Y, Yang H, Zhang X, Fu G, Choi JP.   +10 more
europepmc   +1 more source

Co-design Optimization of a Novel Multi-identity Drone Helicopter (MICOPTER). [PDF]

J Intell Robot Syst, 2022
Abedini A, Bataleblu AA, Roshanian J.
europepmc   +1 more source

Micro-Doppler radar deception and camouflage of airborne targets. [PDF]

Sci Rep
Kozlov V, Sheleg A, Vovchuk D, Melnitsky R, Glam A, Boag A, Ginzburg P.   +6 more
europepmc   +1 more source