Results 11 to 20 of about 724 (217)

Raptor wing morphing with flight speed [PDF]

open access: yesJournal of The Royal Society Interface, 2021
In gliding flight, birds morph their wings and tails to control their flight trajectory and speed. Using high-resolution videogrammetry, we reconstructed accurate and detailed three-dimensional geometries of gliding flights for three raptors (barn owl,Tyto alba; tawny owl,Strix aluco, and goshawk,Accipiter gentilis).
Jorn A. Cheney   +8 more
openaire   +5 more sources

Autonomous material composite morphing wing

open access: yesJournal of Composite Materials, 2023
Aeronautics research has continually sought to achieve the adaptability and morphing performance of avian wings, but in practice, wings of all scales continue to use the same hinged control-surface embodiment. Recent research into compliant and bio-inspired mechanisms for morphing wings and control surfaces has indicated promising results, though often
Daniel Morton   +3 more
openaire   +2 more sources

Design of a Morphing Wingtip [PDF]

open access: yesJournal of Aircraft, 2014
An initial design of a morphing wingtip for a regional jet aircraft is developed and evaluated. The adaptive wingtip concept is based upon a chiral-type internal structure, enabling controlled cant...
Chekkal, I.   +10 more
openaire   +5 more sources

Status and Challenges on Design and Implementation of Camber Morphing Mechanisms

open access: yesInternational Journal of Aerospace Engineering, 2021
This paper presents state-of-the-art technologies of camber morphing mechanisms from the perspectives of design and implementation. Wing morphing technologies are aimed at making the aircraft more energy or aerodynamically efficient during flight by ...
Tuba Majid, Bruce W. Jo
doaj   +1 more source

Conceptual Research on a Mono-Biplane Aerodynamics-Driven Morphing Aircraft

open access: yesAerospace, 2022
The operation of aircrafts with high aspect ratio wings is usually vulnerable to low-standard airports and bad weather. A new concept for a mono-biplane aerodynamics-driven morphing aircraft is proposed.
Tingyu Guo   +4 more
doaj   +1 more source

Wind Defiant Morphing Drones

open access: yesAdvanced Intelligent Systems, 2023
Intense winds are a challenge for vertical take‐off and landing drones with wings. In particular, in the hovering regime, wings are sensitive to wind currents that can be detrimental to their operational and energetic performances.
Charalampos Vourtsis   +4 more
doaj   +1 more source

Development of dielectric elastomeric actuators for morphing wings [PDF]

open access: yesINCAS Bulletin, 2021
In the last decades, wing morphing structures have aroused great interest due to their capability to improve the aerodynamic efficiency of modern aircraft.
Stefan URSU
doaj   +1 more source

Basal complex: a smart wing component for automatic shape morphing

open access: yesCommunications Biology, 2023
Insect wings are adaptive structures that automatically respond to flight forces, surpassing even cutting-edge engineering shape-morphing systems. A widely accepted but not yet explicitly tested hypothesis is that a 3D component in the wing’s proximal ...
Sepehr H. Eraghi   +8 more
doaj   +1 more source

Comparison of morphing trailing edges and conventional control surfaces for active flutter suppression

open access: yesHangkong gongcheng jinzhan, 2023
Aeroelastic modelling and stability analysis of wing with morphing trailing edge have attracted more and more attention. In order to explore the methods and characteristics between active flutter suppression of wings with morphing trailing edge and ...
YANG Yongjian   +3 more
doaj   +1 more source

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

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