Results 81 to 90 of about 139,402 (244)

The Aerodynamic Characteristics of a Diamond Joined-Wing Morphing Aircraft

open access: yesInternational Journal of Aerospace Engineering, 2022
This paper presents a new-concept aircraft with a diamond joined-wing morphing configuration, which simultaneously adjusts the sweep angles of both the front wing and rear wings by a telescopic support rod. The compressible Navier-Stokes equations in the
Shuai Miao   +4 more
doaj   +1 more source

Coupled Transport/Hyperelastic Model for High Energy Density Nastic Materials [PDF]

open access: yes, 2006
A new development in aerospace technology involves the creation of aircraft that can undergo large changes in the shape of their wings and control surfaces.
Homison, Christopher Joseph
core  

A Numerical Study on Smart Material Selection for Flapped and Twisted Morphing Wing Configurations

open access: yesJournal of Aerospace Technology and Management, 2014
The developments of innovative adaptive structures on Unmanned Aerial Vehicles (UAVs), such as morphing wings, can potentially reduce system complexities by eliminating control surfaces and their auxiliary equipment. This technology has the potential of
Maurício Vicente Donadon   +1 more
doaj  

Biomechanics of smart wings in a bat robot: morphing wings using SMA actuators [PDF]

open access: yes, 2012
This paper presents the design of a bat-like micro aerial vehicle with actuated morphing wings. NiTi shape memory alloys (SMAs) acting as artificial biceps and triceps muscles are used for mimicking the morphing wing mechanism of the bat flight apparatus.
Barrientos Cruz, Antonio   +3 more
core   +2 more sources

Quantitative analysis of the morphing wing mechanism of raptors: Analysis methods, folding motions, and bionic design of Falco Peregrinus

open access: yesFundamental Research
Raptors can change the shape and area of their wings to an exceptional degree in a fast and efficient manner, surpassing other birds, insects, or bats.
Di Tang   +11 more
doaj   +1 more source

Lifting-Line Predictions for the Ideal Twist Effectiveness of Spanwise Continuous and Discrete Control Surfaces

open access: yesApplied Sciences
Modern materials and manufacturing technologies have allowed the construction of morphing wings that are able to continuously vary certain airfoil parameters such as twist, camber, or control surface deflection as a function of span. This work presents a
Zachary S. Montgomery   +2 more
doaj   +1 more source

Virtual Sensor for Failure Detection, Identification and Recovery in the Transition Phase of a Morphing Aircraft

open access: yesSensors, 2010
The Helicopter Adaptive Aircraft (HADA) is a morphing aircraft which is able to take-off as a helicopter and, when in forward flight, unfold the wings that are hidden under the fuselage, and transfer the power from the main rotor to a propeller, thus ...
Guillermo Heredia, Aníbal Ollero
doaj   +1 more source

Flight Testing of Novel Compliant Spines for Passive Wing Morphing on Ornithopters [PDF]

open access: yes, 2013
Unmanned Aerial Vehicles (UAVs) are proliferating in both the civil and military markets. Flapping wing UAVs, or ornithopters, have the potential to combine the agility and maneuverability of rotary wing aircraft with excellent performance in low ...
Altenbuchner, Cornelia   +7 more
core   +1 more source

Implementation of a hybrid electro-active actuated morphing wing in wind tunnel [PDF]

open access: yes, 2017
Amongst current aircraft research topics, morphing wing is of great interest for improving the aerodynamic performance. A morphing wing prototype has been designed for wind tunnel experiments.
Braza, Marianna   +4 more
core   +3 more sources

Study of efficient fluid-structure interaction analysis for morphing wing with corrugated structures

open access: yesNihon Kikai Gakkai ronbunshu, 2019
Morphing wings, which control the flight by changing their own shapes, have attracted much attention by their potential for improving aerodynamic performance. Corrugated structures, which have flexibility in the corrugation direction and high rigidity in
Kensuke SONEDA   +2 more
doaj   +1 more source

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