Results 51 to 60 of about 5,063 (265)
Applied SciencesIn the design of flapping-wing micro-size air vehicles capable of hovering, wings serve as the primary source of hovering power, making the analysis of aerodynamics and aerodynamic efficiency crucial.
Ruiqi Ye +4 more
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Effect of Wing Corrugation on the Aerodynamic Efficiency of Two-Dimensional Flapping Wings
Applied Sciences, 2020 Many previous studies have shown that wing corrugation of an insect wing is only structurally beneficial in enhancing the wing’s bending stiffness and does not much help to improve the aerodynamic performance of flapping wings.
Thanh Tien Dao +3 more
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Harnessing Phase Separation for the Development of High‐Performance Hydrogels
Advanced Science, EarlyView.ABSTRACT Hydrogels are indispensable for the development of next‐generation bioelectronics, soft robotics, and biomedical devices, where their mechanical properties determine performance and reliability. Among strategies to enhance hydrogel mechanics, phase separation enables controlled heterogeneity resulting in gel networks that are reinforced by ...
Yue Shao +3 more
wiley +1 more source
The Development of a PiezoelectricI Fan System for the Flapping Wing Micro-Air-Vehicle Application [PDF]
, 2008 A micro air vehicle (MAV) is a semiautonomous airborne vehicle which measures less than 15 cm in any dimension. It can be used to access situations too dangerous for direct human intervention, e.g., explosive devices planted in buildings and video ...
Chung, Hsien-Chun
core
A Preliminary Study of the Three-dimensional Aerodynamics of Flapping Wings
, 2013 A preliminary study of the aerodynamic characteristics of bird-scaled flapping wings is performed. Simulations of vortex behaviors and forces due to the reduced frequency of the three-dimensional flapping wings are investigated.
Niu, Yang-Yao; Liu, Shin-Han; Chang, Che-Cheng; Tseng, T. I. +1 more
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Effect of the wing shape on the thrust of flapping wing
Applied Mathematical Modelling, 2011 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
La Mantia, Marco, Dabnichki, Peter
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Advanced Science, EarlyView.Here, we establish a quantitative relationship between the electrostriction coefficient (Q33) of FRPs and their interplanar spacing (d): Q33 = 100(Δd/d0+1) × Q33(s). Using this model, we fabricated high‐performance soft robots, including a biomimetic crawler (with a speed of 27 cm/s) and a butterfly (with a thrust‐to‐weight ratio of 0.71).
Ba Qin +8 more
wiley +1 more source
Advanced Science, EarlyView.Fully programmable, in‐process 3D magnetization integrated with multi‐material printing enables soft magnetic systems with precise actuation and sensing. Discrete and continuous magnetization profiles drive bending, morphing, and locomotion, demonstrated through strain‐sensing elements, dragonfly‐inspired wings, octopus‐like tentacles, and a serpentine
Phillip Glass +5 more
wiley +1 more source
Influence of wing flexibility on the aerodynamic performance of a tethered flapping bumblebee
Theoretical and Applied Mechanics Letters, 2020 EDITOR'S RECOMMENDATION: The flight of insects has enlightened the flying dream of human beings for centuries. Wing flexibility is often used by insects to increase their flight efficiencies.
Hung Truong +3 more
doaj +1 more source
Unsteady aerodynamic forces of a flapping wing [PDF]
Journal of Experimental Biology, 2004 SUMMARYThe unsteady aerodynamic forces of a model fruit fly wing in flapping motion were investigated by numerically solving the Navier–Stokes equations. The flapping motion consisted of translation and rotation [the translation velocity (ut) varied according to the simple harmonic function (SHF), and the rotation was confined to a short period around ...
Jiang Hao, Wu, Mao, Sun
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