Results 21 to 30 of about 12,334 (255)
Modelling of Flow Characteristics of Main Rotor with Elliptical Root Section in Hover Mode [PDF]
E3S Web of Conferences, 2023 The modelling of a helicopter main rotor flow field in hover regime is being considered. The aerodynamic and aeroacoustics characteristics of two rotor models with different blade root geometries are compared.
Kusyumov Sergey +4 more
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Application of pressure head theory to determine the aerodynamic characteristics of the helicopter main rotor [PDF]
E3S Web of Conferences, 2021 A method is proposed for calculating main aerodynamic characteristics of the main rotor of the Mi-26 helicopter: a lift, a reactive moment, a required power of the propulsion system, a speed of the inductive air flow, a throttle response coefficient, a ...
Reshenkin Andrey +3 more
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A novel permanent magnet flux switching machine with an outer-rotor configuration for in-wheel light traction applications [PDF]
, 2012 This paper proposes a novel permanent magnet flux switching (PMFS) machine with an outer-rotor configuration for in-wheel light traction applications.
Shen, Jian-Xin +4 more
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Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2016 The paper deals with the non-contact method of monitoring the integrity of the main rotor blades of a helicopter. The available methods of monitoring the integrity of the main rotor blades of the helicopter are labor-intensive to implement, their ...
A. I. Danilin, S. V. Zhukov, M. S. Popov
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Rotor Flux Controller for Induction Machines Considering Main Inductance Saturation [PDF]
Problems of the Regional Energetics, 2020 This paper discusses the problem of controlling electromechanical systems with maximum per-formance while maintaining accuracy and minimum power consumption.
Diachenko G.
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Variable-speed tail rotors for helicopters with variable-speed main rotors [PDF]
The Aeronautical Journal, 2017 ABSTRACTVariable tail rotor speed is investigated as a method for reducing tail rotor power, and improving helicopter performance. A helicopter model able to predict the main rotor and tail rotor powers is presented, and the flight test data of the UH-60A helicopter is used for validation. The predictions of the main and tail rotor powers are generally
Han, D., Barakos, G.N.
openaire +1 more source
Известия высших учебных заведений России: Радиоэлектроника, 2019 Introduction. The basis for solving the problem of aircraft recognition is the formation of radar portraits, reflecting the constructive features of aerial vehicles.
Sergey R. Heister, Thai T. Nguyn
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International Journal of Aerospace Engineering, 2020 The tail rotor of a helicopter operating under low-speed crosswind undergoes highly complex flow due to the interaction between the main rotor, fuselage, and tail rotor system.
Nahyeon Roh, Sejong Oh, Donghun Park
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Simulation of wind turbine wake interaction using the vorticity transport model [PDF]
, 2010 The aerodynamic interactions that can occur within a wind farm can result in the constituent turbines generating a lower power output than would be possible if each of the turbines were operated in isolation.
Fletcher, Timothy M. +5 more
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Control simulation model for X-ROTOR concept [PDF]
, 2022 A control model of the X-Rotor concept, suitable for prototyping controller designs, supporting controller analysis and design and assessing the effectiveness of controllers in meeting design objectives is presented.
Stock, Adam +2 more
core +1 more source