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A Review of Modeling and Control Techniques for Unmanned Aerial Vehicles
Engineering Reports, Volume 7, Issue 6, June 2025.By systematically classifying UAV modeling techniques and comparing control methods, this paper addresses a notable gap in the current literature. Furthermore, it highlights emerging trends and challenges in UAV control systems, providing valuable insights to guide future research toward enhancing the stability, efficiency, and adaptability of ...
Elisabeth Andarge Gedefaw +2 more
wiley +1 more source
Thrust pulsation of coaxial main rotor, caused by the blades relative position
Научный вестник МГТУ ГА, 2020 The influence of reciprocal position of the upper rotor blades in respect to the lower rotor blades is characteristic for coaxial main rotor. It is established that the initial azimuth of the blade, for example, of the upper rotor’s which does not ...
B. S. Kritsky +3 more
doaj +1 more source
Gust Response Characteristics of Helicopter Rotor Blade [PDF]
Proceedings of the 2015 2nd International Conference on Machinery, Materials Engineering, Chemical Engineering and Biotechnology, 2016 The deformation of blades effected by gust would endanger the safety of wind turbine. Based on blades elastic deformation theory ,We established a model of blades rotation transient response ,studied the characteristics of blades transient response effected by gust, and confirmed the procedure of blades response to gust.
Guang-yao Yan +3 more
openaire +1 more source
Continuous Adjoint to Proudman's Formula for Aeroacoustic Shape Optimization
International Journal for Numerical Methods in Fluids, Volume 97, Issue 6, Page 966-984, June 2025.This paper presents a cost‐efficient framework for aeroacoustic shape optimization by developing the adjoint to Proudman's formula, coupled with the steady‐state RANS equations and the k‐ ω$$ \omega $$ SST turbulence model. The aeroacoustic model and the adjoint solver are initially validated/verified with experimental data/finite differences, before ...
M. Erfan Farhikhteh +2 more
wiley +1 more source
Wind Energy, Volume 28, Issue 6, June 2025.ABSTRACT Wind turbines operating in unsteady and complex environments often encounter asymmetric and unsteady vortex flows on the suction side of the blade, leading to airflow separation and dynamic stall. These issues significantly impact the aerodynamic performance and energy efficiency of wind turbines. Trailing edge flaps are an active flow control
S. U. N. ZhiXin +2 more
wiley +1 more source
The effectiveness of the EPNL procedure in quantifying helicopter blade slap and tail rotor noise heard on approach some distance from the flyover position is addressed.
Leverton, J. W. +2 more
core +1 more source
Estimation of rotor aerodynamics using blade element theory [PDF]
INCAS BulletinThis paper presents a detailed analysis of the Blade Element Theory (BET) as applied to the aerodynamic performance of propellers and rotor systems. BET, a low-fidelity but widely used method, models the rotor blade as a series of independent elements ...
Andra-Ana-Maria GHEORGHIU +4 more
doaj +1 more source
A Case of Penetrating Head Wound Due to Helicopter Rotor Blade Injury in a 34-Year-Old Naval Helicopter Pilot Who Returned to Active Service 5 Years Later. [PDF]
Am J Case Rep, 2021 Hsieh CC +6 more
europepmc +1 more source
Pneumatic boot for helicopter rotor deicing [PDF]
, 1981 Pneumatic deicer boots for helicopter rotor blades were tested. The tests were conducted in the 6 by 9 ft icing research tunnel on a stationary section of a UH-IH helicopter main rotor blade.
Blaha, B. J., Evanich, P. L.
core +1 more source
Influence of blade aerodynamic model on the prediction of helicopter high-frequency airloads [PDF]
, 2011 Brown’s vorticity transport model has been used to investigate the influence of the blade aerodynamic model on the accuracy with which the high-frequency airloads associated with helicopter blade–vortex interactions can be predicted.
Benoît B. +18 more
core +1 more source