Results 71 to 80 of about 15,084 (235)
Review on Icephobicity of Materials Surface Enhanced by Interface Action Force
Advanced Materials Interfaces, Volume 12, Issue 6, March 16, 2025.As ‘energy‐free’ passive anti‐icing strategies have not yet been effectively implemented, a comprehensive understanding of the mechanisms through which mechanical forces influence the evolution of solid‐liquid, solid‐liquid/ice interfaces, and solid‐ice interfaces, as well as the integration of mechanical forces with various types of active/passive ...
Lingfeng Zhao +5 more
wiley +1 more source
Recycled tire rubber as reinforcement for erosion‐resistant epoxy composites
Polymer Engineering &Science, Volume 65, Issue 3, Page 1386-1403, March 2025.Recycled tire rubber as reinforcement for erosion‐resistant epoxy composites. Abstract The aim of the study was to develop environmentally friendly, low‐cost, and highly erosion‐resistant composites using rubber particles recycled from waste tires as reinforcement.
Orkan Baran Korkusuz +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
Wind Energy, Volume 28, Issue 3, March 2025.ABSTRACT This study presents a data‐driven approach to extrapolate and predict Reynolds number effects on wind turbine airfoil polars. For this purpose, a database is created using experimentally obtained aerodynamic coefficients from open literature for airfoils with thickness‐to‐chord ratio (t/c) values in the range of 15% to 30% in order to be more ...
Ahmet Can Özgören, Oğuz Uzol
wiley +1 more source
The use of active controls to augment rotor/fuselage stability [PDF]
, 1985 The use of active blade pitch control to increase helicopter rotor/body damping is studied. Control is introduced through a conventional nonrotating swashplate. State variable feedback of rotor and body states is used.
Straub, F. K., Warmbrodt, W.
core +1 more source
Smart actuation for helicopter rotorblades [PDF]
, 2012 Successful rotorcrafts were only achieved when the differences between hovering flight conditions and a stable forward flight were understood. During hovering, the air speed on all helicopter blades is linearly distributed along each blade and is the ...
Akkerman, Remko +6 more
core +5 more sources
Simulation of tail boom vibrations using main rotor-fuselage Computational Fluid Dynamics (CFD) [PDF]
, 2017 In this work, fully-resolved rotor-fuselage interactional aerodynamics is used as the forcing term in a model based on the Euler-Bernoulli equation, aiming to simulate helicopter tail-boom vibration.
Barakos, George N. +4 more
core +2 more sources
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
Investigation of the Effect of Blade Sweep on Rotor Vibratory Loads [PDF]
The effect of helicopter rotor blade planform sweep on rotor vibratory hub, blade, and control system loads has been analytically investigated. The importance of sweep angle, sweep initiation radius, flap bending stiffness and torsion bending stiffness ...
Tarzanin, F. J., Jr., Vlaminck, R. R.
core +1 more source
Numerical modelling of the aerodynamic interference between helicopter and ground obstacles [PDF]
, 2017 Helicopters are frequently operating in confined areas where the complex flow fields that develop in windy conditions may result in dangerous situations.
Barakos, George N. +3 more
core +1 more source