Results 191 to 200 of about 23,906 (216)

Data-driven control of flapping flight

ACM Transactions on Graphics, 2013
We present a physically based controller that simulates the flapping behavior of a bird in flight. We recorded the motion of a dove using marker-based optical motion capture and high-speed video cameras. The bird flight data thus acquired allow us to parameterize natural wingbeat cycles and provide the simulated bird with reference trajectories to ...
Ju, E Ju, Eunjung, Won, J Won, Jungdam, Lee, J Lee, Jehee, Choi, B Choi, Byungkuk, Noh, J Noh, Junyong, Choi, MG Choi, Min Gyu   +5 more
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Challenges for 100 Milligram Flapping Flight

2009
Creating insect-scale flapping flight at the 0.1 gram size has presented significant engineering challenges. A particular focus has been on creating miniature machines which generate similar wing stroke kinematics as flies or bees. Key challenges have been thorax mechanics, thorax dynamics, and obtaining high power-to-weight ratio actuators.
Ronald S. Fearing, Robert J. Wood
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Flapping and Rotary Wing Flight

2016
In the previous chapters, we saw the flight of airplanes and gliders requires that a downwash must be created by the fixed wing as it moves through the air. The aerodynamic lift thus created depends crucially upon the speed relative to the atmosphere (airspeed), as well as on the incidence angle (angle-of-attack) made by the flight direction with the ...
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The Flapping Flight of Birds. II

Journal of the Royal Aeronautical Society, 1927
In a paper in the number of this journal for November, 1925, it was shown that if a flying machine were fitted with wings of standard section and these were flapped in a rhythmical manner, the machine would be supported and propelled, its weight, dimensions and velocity being those of a typical bird; the degree of accuracy attempted in the analysis did
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The Polar Flap-Byrd's Flight Confirmed

Navigation, 1973
This article was written in defense of Byrd's claim of making the first flight over the pole. In a recent book entitled Oceans, Poles and Airmen, the author, Richard Montague, gained world-wide attention when he gathered information denouncing the flight as a fraud. He relied on Bernt Balchen (who accompanied Byrd on his South Pole trip) and G.
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POWERED FLIGHT FROM PASSIVELY FLAPPING WINGS

Journal of Experimental Biology, 2013
![][1] Flags flap in the wind. What if wings also did? A recent paper from Oscan Curet, Sharon Swartz and Kenneth Breuer at Brown University shows that an aeroelastic instability, similar to flag flapping, could have provided an impetus for some gliding animals to shift to ...
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Bat-Inspired Flapping Flight

22nd AIAA/ASME/AHS Adaptive Structures Conference, 2014
Po-Ting Chen, Shiv P. Joshi, Sharon Swartz, Kenneth Breuer, Gregory W. Reich   +4 more
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Forward flapping flight from flexible fins

Canadian Journal of Zoology, 1988
The mechanics and energetics of aquatic flight by the clearnose skate (Raja eglanteria) are examined with cinefilm and a new theoretical approach toward flight mechanics. Film analyses show that these animals move with a flapping, flexing wing that has a propulsive wave travelling rearward at twice the forward speed of the animal.
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Curvature of Wing and Flapping Flight

1932
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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FLAPPING FLIGHT

Ibis, 1951
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