Aeroacoustics of a coaxial rotor in level flight [PDF]
, 2008 The aeroacoustic characteristics of a coaxial system with teetering rotors in level forward °ight are com- pared to those of an equivalent articulated single rotor with the same solidity.
Brown, R.E. +5 more
core +12 more sources
Modelling the aerodynamics of coaxial helicopters : from an isolated rotor to a complete aircraft [PDF]
, 2008 This paper provides an overview of recent research on the aerodynamics of coaxial rotors at the Rotorcraft Aeromechanics Laboratory of the Glasgow University Rotorcraft Laboratories.
Brown, R.E. +7 more
core +4 more sources
Interactional aerodynamics and acoustics of a hingeless coaxial helicopter with an auxiliary propeller in forward flight [PDF]
, 2008 The aerodynamic and acoustic characteristics of a generic hingeless coaxial helicopter with a tail-mounted propulsor and stabiliser have been simulated using Brown's Vorticity Transport Model.
Brown, R.E. +3 more
core +14 more sources
A comparison of coaxial and conventional rotor performance [PDF]
, 2010 The performance of a coaxial rotor in hover, in steady forward flight, and in level, coordinated turns is contrasted with that of an equivalent, conventional rotor with the same overall solidity, number of blades, and blade aerodynamic properties.
Brown, Richard E., Kim, Hyo Won
core +4 more sources
Effect of rotor stiffness and lift offset on the aeroacoustics of a coaxial rotor in level flight [PDF]
, 2009 The acoustic characteristics of a twin contra-rotating coaxial rotor configuration with significant flapwise stiffness are investigated in steady forward flight.
Brown, R.E. +5 more
core +4 more sources
Asynchronous generator replacement scheme with internal capacitive reactive power compensation
Machinery & Energetics, 2023 The relevance of using compensated induction machines in the generator mode of autonomous power supply systems is determined by their ability to provide a stable and reliable power supply even in the absence of an external grid.
R. Chuenko +3 more
doaj +1 more source
Aerodynamic Interactions Between the Propeller and Other Components in a Coaxial Compound Helicopter [PDF]
Journal of Applied Fluid MechanicsThe coaxial compound helicopter represents a promising configuration for enhancing maximum flight speed. This configuration features a pair of coaxial rigid rotors and a rear-located propeller.
Y. Cao, M. Wang
doaj +1 more source
Helicopter tail rotor thrust and main rotor wake coupling in crosswind flight [PDF]
, 2010 The tail rotor of a helicopter with a single main rotor configuration can experience a significant reduction in thrust when the aircraft operates in crosswind flight. Brown’s vorticity transport model has been used to simulate a main rotor and tail rotor
Fletcher, Timothy M., Brown, Richard
core +4 more sources
Научный вестник МГТУ ГА, 2018 The efficiency of the helicopter main rotor in the hover mode is very important, because this mode essentially determines the performance characteristics of the helicopter.
Y. M. Ignatkin +2 more
doaj +1 more source
Design analysis and construction of energy harvesting coaxial helicopter
Aviation, 2013 With the growing need for technology, the tendency for errors has increased many times, which often results in loss of human lives. Our main aim of this paper is to show the implementation of a coaxial rotor aerial vehicle that can be controlled by a ...
Anvinder Singh, Varun Sharma
doaj +1 more source