Microstates in complex and dynamical environments: Unraveling situational awareness in critical helicopter landing maneuvers
Sign Up to like & getrecommendations! Published in 2021 at "Human Brain Mapping"
DOI: 10.1002/hbm.25426
Abstract: Understanding decision‐making in complex and dynamic environments is relevant for designing strategies targeting safety improvements and error rate reductions. However, studies evaluating brain dynamics in realistic situations are scarce in the literature. Given the evidence… read more here.
Keywords: microstates complex; helicopter; environments unraveling; dynamical environments ... See more keywords
The mediating role of resilience in the relationship between helicopter parenting and several indicators of mental health among emerging adults.
Sign Up to like & getrecommendations! Published in 2023 at "Journal of community psychology"
DOI: 10.1002/jcop.23009
Abstract: Helicopter parenting has received much attention in the last decade. The growing literature on this phenomenon illustrates the negative consequences of helicopter parenting. The detrimental effects of helicopter parenting on emerging adults may be especially… read more here.
Keywords: emerging adults; helicopter parenting; mental health; helicopter ... See more keywords
The Ingenuity Helicopter on the Perseverance Rover
Sign Up to like & getrecommendations! Published in 2021 at "Space Science Reviews"
DOI: 10.1007/s11214-021-00815-w
Abstract: The Ingenuity Helicopter will be deployed from the Perseverance Rover for a 30-sol experimental campaign shortly after the rover lands and is commissioned. We describe the helicopter and the associated Technology Demonstration experiment it will… read more here.
Keywords: science; ingenuity helicopter; perseverance rover; text text ... See more keywords
Aerodynamic performance optimization for the rotor design of a hovering agricultural unmanned helicopter
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Mechanical Science and Technology"
DOI: 10.1007/s12206-017-0820-y
Abstract: The importance of using Agriculture unmanned helicopters (AUHs), especially for spraying pesticides and fertilizers on any terrain type to ensure crop yields, has been recently acknowledged. Apart from flying these helicopters at a super-low altitude… read more here.
Keywords: helicopter; aerodynamic performance; rotor; rotor blade ... See more keywords
Numerical modelling of the aerodynamic interference between helicopter and ground obstacles
Sign Up to like & getrecommendations! Published in 2017 at "CEAS Aeronautical Journal"
DOI: 10.1007/s13272-017-0259-y
Abstract: AbstractHelicopters are frequently operating in confined areas where the complex flow fields that develop in windy conditions may result in dangerous situations. Tools to analyse the interaction between rotorcraft wakes and ground obstacles are therefore… read more here.
Keywords: modelling aerodynamic; ground; helicopter; interference ... See more keywords
Tactile cueing with active cyclic stick for helicopter obstacle avoidance: development and pilot acceptance
Sign Up to like & getrecommendations! Published in 2018 at "CEAS Aeronautical Journal"
DOI: 10.1007/s13272-017-0271-2
Abstract: As helicopters land and takeoff in obstructed areas and on unprepared landing sites, the risk of a collision with an obstacle is high. DLR has implemented a function to provide haptic feedback on the controls… read more here.
Keywords: obstacle avoidance; helicopter; obstacle; pilot ... See more keywords
Drivetrain influence on the lead–lag modes of hingeless helicopter rotors
Sign Up to like & getrecommendations! Published in 2019 at "CEAS Aeronautical Journal"
DOI: 10.1007/s13272-019-00395-0
Abstract: Structural couplings between the flexible main rotor and the flexible drivetrain of the Bo105 helicopter are investigated by numerical simulation. For this purpose, the rotor hub constraint $$\varOmega ={\text {const.}}$$ Ω = const. is dropped… read more here.
Keywords: rotor; drivetrain; lag modes; helicopter ... See more keywords
A numerical study of vibration-induced instrument reading capability degradation in helicopter pilots
Sign Up to like & getrecommendations! Published in 2021 at "CEAS Aeronautical Journal"
DOI: 10.1007/s13272-021-00516-8
Abstract: Rotorcraft suffer from relatively high vibratory levels, due to exposure to significant vibratory load levels originating from rotors. As a result, pilots are typically exposed to vibrations, which have non-negligible consequences. Among those, one important… read more here.
Keywords: vibration; model; helicopter; degradation ... See more keywords
A comparison between evacuation from the scene and interhospital transportation using a helicopter for subarachnoid hemorrhage
Sign Up to like & getrecommendations! Published in 2017 at "American Journal of Emergency Medicine"
DOI: 10.1016/j.ajem.2016.12.007
Abstract: Purpose: We investigated the changes in the vital signs and the final outcomes subarachnoid hemorrhage (SAH) patients who were evacuated from the scene using the doctor‐helicopter (Dr. Heli) service and those who only underwent interhospital… read more here.
Keywords: helicopter; scene; group; subarachnoid hemorrhage ... See more keywords
Helicopter rotor noise prediction using a convected FW-H equation in the frequency domain
Sign Up to like & getrecommendations! Published in 2018 at "Applied Acoustics"
DOI: 10.1016/j.apacoust.2018.04.040
Abstract: Abstract In this paper, high-speed impulsive noise radiated from helicopter rotors in hover and forward flight is computed by using a convected FW-H equation in the frequency domain with a rotating permeable data surface. Compared… read more here.
Keywords: noise prediction; helicopter; surface; data surface ... See more keywords
Fixed-time autonomous shipboard landing control of a helicopter with external disturbances
Sign Up to like & getrecommendations! Published in 2019 at "Aerospace Science and Technology"
DOI: 10.1016/j.ast.2018.07.032
Abstract: Abstract This paper presents a new fixed-time control algorithm to enable autonomous landing of a helicopter onto the ship's deck in the presence of parametric uncertainties and external disturbances. A nonsingular terminal sliding control is… read more here.
Keywords: shipboard landing; time; control; helicopter ... See more keywords