Results 21 to 30 of about 6,315 (255)
AIP Advances, 2020 Birds in nature adjust the shape of their wings in time according to the change in wind resistance to achieve the purpose of increasing lift and reducing drag, thereby achieving higher flight efficiency.
Jie Qin +5 more
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Assessing the Impact of Membrane Deformations on Wing Sail Performance [PDF]
Journal of Sailing Technology, 2021 Abstract The aim of this research is to quantify the membrane deformations and their impact on performance for a ribbed wing sail. A 1m x 0.8m rectangular planform NACA0012 foil was designed to replicate a single section of a wing-sail.
Banks, Joseph +2 more
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Effect of twist, camber and spanwise bending on the aerodynamic performance of flapping wings
Journal of Biomechanical Science and Engineering, 2018 Insect wings change its shape dynamically through the interactions of the structure, and the aerodynamic and inertial forces when flapping, which can greatly affect its aerodynamic performances.
Toshiyuki NAKATA, Ryusuke NODA, Hao LIU
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Aerospace, 2023 A multi-dimensional morphing wing skeleton mechanism is proposed with double-sided triangular pyramid units, which can realize continuous variable span-wise bend, span-wise twist, and sweep.
Hui Yang +3 more
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International Journal of Aerospace Engineering, 2023 The variable-sweep wing is very attractive for cross-speed domain aircraft. The shear-sliding rigid-flexible coupled skin variable-sweep wing and its associated mechanism are designed and optimized.
Hong Xiao +5 more
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Modelling Aero-Structural Deformation of Flexible Membrane Kites
Energies, 2023 Airborne wind energy systems using flexible membrane wings have the advantages of a low weight, small packing volume, high mobility and rapid deployability.
Jelle A. W. Poland, Roland Schmehl
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Support and deformability in insect wings [PDF]
Journal of Zoology, 1981 Coupled investigations of insect wing movements and detailed wing morphology are in progress, and some functional principles underlying wing design are emerging. High speed cine and still photography and stroboscopy indicate that most wings undergo orderly deformation in flight.
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Deformed wing virus is not related to honey bees' aggressiveness [PDF]
Virology Journal, 2006 Abstract Guards of Cyprian honey bee colonies, Apis mellifera cypria, display a great defensive behaviour against hornets' attacks. The deformed wing virus (DWV) and the kakugo virus (KV) genomes are very similar, but unlike KV, the presence of DWV is not related to honey bees' aggressiveness. This discrepancy is further discussed.
Arnold Gérard +6 more
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Infection of a Lepidopteran Cell Line with Deformed Wing Virus [PDF]
Viruses, 2020 Many attempts to develop a reliable cell cultured-based system to study honey bee virus infections have encountered substantial difficulties. We investigated the ability of a cell line from a heterologous insect to sustain infection by a honey bee virus.
Tal Erez, Nor Chejanovsky
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Design and Shear Analysis of an Angled Morphing Wing Skin Module
Applied Sciences, 2022 Morphing wing skin can greatly improve the performance of aircraft by adjusting the shape of the wings according to different flight conditions. However, it is a challenge to maintain a smooth aerodynamic wing skin surface during the deformation process.
Jinrui Yu, Jiayao Ma
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