Eulerian simulation of the fluid dynamics of helicopter brownout [PDF]
, 2008 A computational model is presented that can be used to simulate the development of the dust cloud that can be entrained into the air when a helicopter is operated close to the ground in desert or dusty conditions.
Brown, R.E. +5 more
core +13 more sources
Interactional aerodynamics and acoustics of a hingeless coaxial helicopter with an auxiliary propeller in forward flight [PDF]
, 2008 The aerodynamics and acoustics of a generic coaxial helicopter with a stiff main rotor system and a tail- mounted propulsor are investigated using Brown's Vorticity Transport Model.
Brown, R.E. +7 more
core +10 more sources
Sensitivity of tail rotor noise to helicopter configuration in forward flight [PDF]
, 2009 Understanding the mechanisms that lead to the production of noise by tail rotors across a broad range of flight conditions and helicopter configurations remains an active area of research.
Fletcher, Timothy M. +5 more
core +4 more sources
Helicopter crashworthiness: a chronological review of research related to water impact from 1982 to 2006 [PDF]
, 2008 This paper discusses in detail the contributions made in the field of water impact from 1982 to 2006 and provides a summaryof the major theoretical, experimental, and numerical accomplishments, up to and including the latest present-day Europeanprograms ...
Hughes, Kevin, Campbell, James C.
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.
Kelly, Mary E. +3 more
core +5 more sources
Eulerian simulation of the fluid dynamics of helicopter brownout [PDF]
, 2009 A computational model is presented that can be used to simulate the development of the dust cloud that can be entrained into the air when a helicopter is operated close to the ground in desert or dusty conditions.
Brown, R.E., Phillips, C.
core +2 more sources
A New Algorithm on Automatic Trimming for Helicopter Rotor Aerodynamic Loads
Aerospace, 2023 In order to simulate the flight state of the helicopter effectively, it is necessary to trim the helicopter during the forward flight in a wind tunnel test.
Xinfan Yin +5 more
doaj +1 more source
Insulator fault feature extraction system of substation equipment based on machine vision
IET Networks, EarlyView., 2022 Abstract The artificial intelligence technology and intelligent automation are more and more widely used, the insulators play a supporting and insulating role in the operation of the grid. The use of machine vision inspection technology to detect insulator faults has become an inevitable trend of the times.
Keruo Jiang +4 more
wiley +1 more source
Modeling and Analysis of a Generic Internal Cargo Airdrop System for a Tandem Helicopter
Applied Sciences, 2021 This article describes the results of modeling and analysis of a generic internal cargo system using a discretization method of the vector mechanics.
Guozhi Li, Yihua Cao, Maosheng Wang
doaj +1 more source
Frontiers in Neurology, 2022 BackgroundThis modeling study aimed to determine if helicopters may optimize the transportation of patients with symptoms of large vessel stroke in “intermediate density” areas, such as Denmark, by bringing them directly to the comprehensive stroke ...
Anne Behrndtz +9 more
doaj +1 more source