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Aircraft Wings and Morphing–Evolution of the Concepts

open access: yesEncyclopedia
This encyclopedia entry provides an updated appreciation of the evolution of morphing aircraft wings, organized as follows: first, lift concepts are briefly examined; second, patents related to lift enhancement are discussed, showcasing existing ...
Sérgio M. O. Tavares   +2 more
doaj   +1 more source

Trailing-edge dynamics of a morphing NACA0012 aileron at high Reynolds number by high-speed PIV [PDF]

open access: yes, 2015
Particle image velocimetry (piv) measurements are made at the trailing edge of a piezoelectric actuated aileron in order to investigate the physical effect on the flow via high-frequency low-amplitude actuation at high Reynolds numbers.
Braza, Marianna   +6 more
core   +3 more sources

Geometrically nonlinear electro-aeroelastic framework for morphing wing with piezoelectric actuators

open access: yesNihon Kikai Gakkai ronbunshu, 2019
In this paper, a flexible morphing wing with piezoelectric materials for morphing actuation is studied. The objectives of this paper are 1) to develop an integrated geometrically nonlinear electro-aeroelastic framework, which allows evaluating ...
Natsuki TSUSHIMA   +3 more
doaj   +1 more source

Numerical and experimental transition results evaluation for a morphing wing and aileron system [PDF]

open access: yes, 2018
A new wing-tip concept with morphing upper surface and interchangeable conventional and morphing ailerons was designed, manufactured, bench and wind tunnel tested.
Amendola, G   +15 more
core   +1 more source

Smart actuation for helicopter rotorblades [PDF]

open access: yes, 2012
Successful rotorcrafts were only achieved when the differences between hovering flight conditions and a stable forward flight were understood. During hovering, the air speed on all helicopter blades is linearly distributed along each blade and is the ...
Akkerman, Remko   +6 more
core   +5 more sources

Trailing-edge dynamics and morphing of a deformable flat plate at high Reynolds number by time-resolved PIV [PDF]

open access: yes, 2014
The present paper investigates the turbulent wake structure in the near-region past the trailing edge of a deformable inclined plate. The plate is actuated by shape memory alloys. Using these actuators a significant deformation (bending) can be achieved (
Braza, Marianna   +6 more
core   +2 more sources

The effect of twist morphing on aerodynamic performance of finite wing at low Reynolds number [PDF]

open access: yesEPJ Web of Conferences
This study experimentally investigates the effect of twist morphing on the aerodynamic characteristics of a finite wing at low Reynolds numbers (Re). As the base model, a NACA 0018 airfoil with an aspect ratio of 4 is used.
Gunes Yasemin B.   +4 more
doaj   +1 more source

Trailing Edge Noise Reduction Using Novel Surface Treatments [PDF]

open access: yes, 2016
A novel trailing edge noise control technique based on upstream manipulation of large coherent turbulent structures using two dimensional surface treatments has been proposed and tested. To demonstrate the capabilities of the proposed trailing edge noise
Afshari, Abbas   +3 more
core   +2 more sources

Optimization and Experimental Investigation of a Single-Actuation Compliant Morphing Trailing Edge for Multiple Aerodynamic Configurations

open access: yesActuators
This work presents a low-fidelity optimization method for a compliant morphing wing trailing-edge structure, developed to achieve multiple optimized aerodynamic shapes under combined aerodynamic and control loads using a single actuation pathway ...
Martynas Lendraitis   +1 more
doaj   +1 more source

Aerodynamic Shape Design and Validation of an Advanced High-Lift Device for a Regional Aircraft with Morphing Droop Nose

open access: yesInternational Journal of Aerospace Engineering, 2019
In the present work, the aerodynamic shape design of an advanced high-lift system for a natural laminar flow (NLF) wing, based on the combination of a morphing droop nose and a single slot trailing edge flap, is presented.
Alessandro De Gaspari, Frédéric Moens
doaj   +1 more source

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