Results 91 to 100 of about 22,232 (271)
Static and dynamic balancing of helicopter tail rotor blade using two-plane balancing method [PDF]
, 2014 Balancing is a rotating component is critical in any mechanism. Devoid of proper balancing, any vehicle-be it in air, land or sea, it will affect stability, control and safety. The same goes for rotor crafts. Imbalance of the helicopter tail rotor system
Abdul Awal, Ziad, Ammoo, Mohd. Shariff
core +3 more sources
Научный вестник МГТУ ГА, 2017 For single-rotor helicopters there are special flight modes, when tail rotor (TR) is under significant inductive influence of vortical wake of main rotor (MR).
Yu. M. Ignatkin +3 more
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Lipids, EarlyView.The experimental design and the exometabolomic findings obtained by 1H‐NMR analysis of conditioned media from subcutaneous (SAT) and epididymal adipose tissue (EAT) explants of control and obese mice supplemented with chia oil (1.5% (w/w)). Following 8 weeks of control or high‐fat diet and 5 weeks of chia oil supplementation, SAT and EAT explants were ...
Gilson Costa dos Santos Jr +5 more
wiley +1 more source
Research investigation of helicopter main rotor/tail rotor interaction noise [PDF]
, 1988 Acoustic measurements were obtained in a Langley 14 x 22 foot Subsonic Wind Tunnel to study the aeroacoustic interaction of 1/5th scale main rotor, tail rotor, and fuselage models.
Kohlhepp, F., Fitzgerald, J.
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Laser &Photonics Reviews, EarlyView.Optically confined gold nanorods exhibit cooperative light‐driven dynamics, forming mobile end‐to‐end dimers with orientation‐dependent propulsion. Using structured laser traps and an opto‐thermo‐hydrodynamic model, we uncover how optical binding, polarization‐induced torque, and near‐surface hydrodynamics govern their motion.
José A. Rodrigo, Tatiana Alieva
wiley +1 more source
Journal of Industrial Design and Engineering Graphics, 2011 The objective of this paper is to analyze the role of helicopter rotor, to classify them by type, and to imagine new types of helicopter rotors that can equip future helicopters.
IONESCU Cristian Andrei
doaj
A Straight-bladed Vertical Axis Wind Turbine with a Directed Guide Vane Row
Journal of Fluid Science and Technology, 2008 A straight-bladed vertical axis wind turbine with a directed guide vane row has been proposed in order to enhance its torque. The experimental study of the proposed wind turbine was carried out by a wind tunnel with an outlet diameter of 1.8m. The tested
Manabu TAKAO +4 more
doaj +1 more source
Polymer Composites, EarlyView.PSPP‐TRL mapping of CNT‐modified CFRP literature, with four recurring confusions resolved and five scale‐up problems quantified. ABSTRACT Carbon nanotube‐modified fiber composites are often presented as a route to stronger, tougher, and self‐sensing structural materials.
Sanan H. Khan
wiley +1 more source
Main Rotor - Tail Rotor Interactional Noise [PDF]
, 2019 In this paper, effects of main rotor – tail rotor interactions on noise characteristics are investigated for a typical 10 ton class helicopter. Evaluations are performed at hover and quartering flight conditions with top-forward, topforward with 10o of ...
Atalay, Mehmet Melih +3 more
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Polymer Composites, EarlyView.Overview of the holistic engineering lifecycle and core research pillars for wind turbine blades. ABSTRACT This paper reviews recent advancements across the lifecycle of wind turbine blades, focusing on three interconnected areas: advanced composites, structural optimization, and machine learning (ML) diagnostics. In materials, we highlight progress in
Kemal Hasirci +2 more
wiley +1 more source