Results 171 to 180 of about 23,906 (216)

The Structural Design and Optimization of a Novel Independently Driven Bionic Ornithopter. [PDF]

Biomimetics (Basel)
Dai M, Wu R, Ye M, Gao K, Chen B, Tao X, Fan Z.   +6 more
europepmc   +1 more source

Bioinspired Design for Space Robots: Enhancing Exploration Capability and Intelligence. [PDF]

Biomimetics (Basel)
Chen G, Lei X, Li S, Lodewijks G, Zhang R, Zou M.   +5 more
europepmc   +1 more source

Aerial monitoring of turkey behavior using unmanned aerial vehicles and computer vision. [PDF]

Poult Sci
Calderone G, Molins M, Catania P, Boney J, Casella E.   +4 more
europepmc   +1 more source

Development of a Dragonfly-Inspired High Aerodynamic Force Flapping-Wing Mechanism Using Asymmetric Wing Flapping Motion. [PDF]

Biomimetics (Basel)
Liang J, Zheng M, Pan T, Su G, Deng Y, Cao M, Li Q.   +6 more
europepmc   +1 more source

Scaling and mechanical optimality of bristled wings in microinsects. [PDF]

Proc Natl Acad Sci U S A
Kolomenskiy D, Farisenkov SE, Petrov PN, Polilov AA.   +3 more
europepmc   +1 more source

Aerodynamics Analysis of Helicopter Rotor in Flight Test Using Strain Gauge Sensors. [PDF]

Sensors (Basel)
Jiao S, Zheng J.
europepmc   +1 more source

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Is Flapping Flight Aerodynamically Efficient?

32nd AIAA Applied Aerodynamics Conference, 2014
Flapping flight is much less efficient for some insects than previously thought. The induced power factor for flapping wings is discussed in terms of a number of non-ideal effects for hovering and for forward flight. These effects include losses due to non-uniform downwash, wake periodicity and effective disk area.
Nabawy, M.R.A., Crowther, W.J.
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Dragonfly Flight : II. Velocities, Accelerations and Kinematics of Flapping Flight

Journal of Experimental Biology, 1997
ABSTRACT The free flapping flight of the dragonfly Sympetrum sanguineum and the damselfly Calopteryx splendens was filmed in a large flight enclosure at 3000 frames s−1. The wingtip kinematics are described for these flights. Despite the two species being similar in size, the damselfly flew with wingbeat frequencies half those of the ...
JM, Wakeling, CP, Ellington
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Optimization of Flap-Bounding Flight

AIAA Atmospheric Flight Mechanics Conference, 2011
Flap-bounding flight which is a flight mode consisting of continually repeated cycles with flapping and non-flapping phases is treated as a periodic optimal control problem. Two modelings of flap-bounding flight are developed. One modeling is based on energy considerations.
Gottfried Sachs, Jakob Lenz, Florian Holzapfel   +2 more
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Flapping Flight

Aeronautical journal (London, England : 1897), 1915
A paper on “Flapping Flight of Aeroplanes ” by the present writer was communicated by the late Professor G. F. FitzGerald to the “ Proceedings ” of the Royal Society (Vol. 64, pp. 420-430) in 1899. At that date much that is now almost common knowledge concerning the mechanics of flight was little thought of, much less understood, practical aviation did
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