Results 201 to 210 of about 25,283 (254)
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Sunlight-Driven Continuous Flapping-Wing Motion
ACS Applied Materials & Interfaces, 2020Light-driven actuators that directly convert light into mechanical work have attracted significant attention due to their wireless advantage and ability to be easily controlled. However, a fundamental impediment to their application is that the continuous motion of light-driven flexible actuators usually requires a periodically switching light source ...
Xu Dong +8 more
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Wing Analysis of Bionic Flapping-Wing Flying Robots
2023 IEEE International Conference on Systems, Man, and Cybernetics (SMC), 2023Flapping-wing flying robots, as a newly emerging research hotspot, have attracted more and more researchers' attention. Compared with traditional aircraft, flapping-wing flying robots have the characteristics of high flight efficiency, good concealment, and have a wide range of application prospects.
Zhang, Liang +4 more
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Aerodynamic sound generation of flapping wing
The Journal of the Acoustical Society of America, 2008The unsteady flow and acoustic characteristics of the flapping wing are numerically investigated for a two-dimensional model of Bombus terrestris bumblebee at hovering and forward flight conditions. The Reynolds number Re, based on the maximum translational velocity of the wing and the chord length, is 8800 and the Mach number M is 0.0485.
Youngmin, Bae, Young J, Moon
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Optimization Design of Flapping Mechanism and Wings for Flapping-Wing MAVs
2008In this paper, a lightweight flapping-wing MAV (micro air vehicle) was built which can successfully fly in the sky. However, this flying MAV often pitches toward left or right and crashes during flight. It is mainly caused by the incomplete symmetry of the wings' movement.
Lan Liu, Zongde Fang, Zhaoxia He
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A parametric study of flapping wing performance using a robotic flapping wing
2009 IEEE International Conference on Robotics and Automation, 2009Flapping wings have the potential to revolutionize the field of Micro Aerial Vehicles (MAVs), however the effect of flapping motion on the performance of such wings has not been studied in detail. This paper presents a parametric study of flapping wing propulsion, using two types of passive flapping wings and three flapping motions. Each combination of
D. Watman, T. Furukawa
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Science, 2012
Robot aircraft that fly like birds could open new vistas in maneuverability, if designers can forge a productive partnership with an old enemy: unsteady airflow.
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Robot aircraft that fly like birds could open new vistas in maneuverability, if designers can forge a productive partnership with an old enemy: unsteady airflow.
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Annals of Plastic Surgery, 2007
Single large-area or 2 small- to moderate-sized raw areas in the hand and forearm are difficult to cover with conventional groin or superficial inferior epigastric artery (SIEA) flaps. Though abdomen is a favorable donor site for a pedicled distant flap for soft tissue coverage of the hand and forearm, pedicle flaps based on paraumbilical perforators ...
B Jagannath, Kamath +2 more
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Single large-area or 2 small- to moderate-sized raw areas in the hand and forearm are difficult to cover with conventional groin or superficial inferior epigastric artery (SIEA) flaps. Though abdomen is a favorable donor site for a pedicled distant flap for soft tissue coverage of the hand and forearm, pedicle flaps based on paraumbilical perforators ...
B Jagannath, Kamath +2 more
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Flapping wing performance related to wing planform and wing kinematics
12th AIAA Aviation Technology, Integration, and Operations (ATIO) Conference and 14th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, 2012apping wing micro air vehicles (FWMAVs), the wing performance is of paramount importance. The wing performance is mainly determined by the wing planform and the wing-beat kinematics. Since the optimization of the wing planform and the wing-beat kinematics is complicated by the apping wing aerodynamics, most FWMAV designs tend to use standard wing ...
Hugo Peters +2 more
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Aerodynamical Improvement of Delta Wing and Flapping Wing
Volume 1A: Symposia, Part 2, 2015Recently, various studies of Micro Air Vehicle (MAV) and Unmanned Air Vehicle (UAV) have been reported from wide range points of view. The aim of this study are researching the aerodynamic improvement of delta wing and flapping wing in low Reynold’s number region to develop an applicative these air vehicle.
Tadateru Ishide +5 more
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2007
Flying animals flap wings to create lift and thrust as well as to perform remarkable maneuvers with rapid accelerations and decelerations. Insects, bats, and birds provide illuminating examples of utilizing unsteady aerodynamics to design future MAVs.
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Flying animals flap wings to create lift and thrust as well as to perform remarkable maneuvers with rapid accelerations and decelerations. Insects, bats, and birds provide illuminating examples of utilizing unsteady aerodynamics to design future MAVs.
openaire +1 more source