Results 191 to 200 of about 5,748 (245)

Powered-gliding/climbing flight performed by bats for saving fuel. [PDF]

Biol Open
Sachs G.
europepmc   +1 more source

How bio-inspired is your design? A transparent reporting framework. [PDF]

Commun Eng
Harvey C.
europepmc   +1 more source

2.5-Dimensional Structure Approach for Miniaturizing Flapping-Wing Air Vehicles. [PDF]

Micromachines (Basel)
Ishihara D, Kimura M, Suetsugu R, Ueo J, Ohira N, Takagi M, Ishiba K, Shirakawa N, Nishinohara R, Kimura M.   +9 more
europepmc   +1 more source

Body oscillations couple with wing flapping to reduce aerodynamic power in wild silk moth flight. [PDF]

J R Soc Interface
Sikandar UB, Aiello BR, Sponberg S.
europepmc   +1 more source

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 ...
Jungdam Won, Jehee Lee, Junyong Noh
exaly   +4 more sources

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.; id_orcid 0000-0002-0613-9375   +1 more
openaire   +2 more sources

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
Maurice F. Fitzgerald
openaire   +2 more sources

Aerodynamic Mechanisms of Flapping Flight

, 2015
The growing need for mobile aerial platforms capable of performing reconnaissance tasks and gathering intelligence in hazardous and physically inaccessible areas has given rise to an increasing interest in the development of micro aerial vehicles (MAVs), in view of their potential capabilities of versatile and highly maneuverable flight.
Percin, M., Percin, M. (author)
openaire   +3 more sources

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The Flapping Flight of Birds

The Journal of the Royal Aeronautical Society, 1925
In connection with gliding flight enough measurements of “ lift ” and “ drag ” have been made to enable us to calculate the conditions for success of an aeroplane fitted with wings of standard sections; but no attempt has been made, as far as the present writer is aware, to ascertain what would happen if a flying machine were fitted with wings of ...
openaire   +2 more sources

Optimization of the flapping motion for the hovering flight

2011 IEEE International Conference on Robotics and Biomimetics, 2011
The kinematics of a flapping plate is determined by solving a path optimization problem for the hovering flight. The flapping motion of the flat plate is described by a combined sinusoidal plunging and pitching motion in the horizontal plane. The optimization process is carried out based on a well defined surrogate model which is made from the results ...
Jung-Sun Choi, Jae-Woong Kim, Do-Hyung Lee, Gyung-Jin Park   +3 more
openaire   +1 more source