Results 221 to 230 of about 1,744,450 (275)
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Wing folding and the functional morphology of the wing base in Coleoptera
Zoology, 2001The wing unfolding of Pachnoda marginata was examined using digital video (50 half-fps) and high speed video sequences (1000 fps), and the skeleto-muscular apparatus of the metathorax was described. Left and right hind wing are able to promote independently of each other.
Rolf Georg Beutel, Fabian Haas
exaly +3 more sources
Development of the weight formula for a folding wing
Russian Aeronautics, 2012The classification of methods for carrier-based aircraft wing folding is presented. We determined the factors influencing the folding axis position and the mass increase of the wing being folded. We also suggested a technique of deriving the folding wing mass formula by an example of the wing rotation around the axis, which is parallel to the aircraft ...
M. V. Yarygina, Yu. I. Popov
exaly +2 more sources
Design of an active wing-folding biomimetic flapping-wing air vehicle
Engineering Research ExpressAbstract In nature, birds and bats dynamically alter their wing shapes to suit various flight environments and tasks. This paper focuses on the design and validation of a biomimetic flapping-wing aerial vehicle, named FlexiWing, which features a unique mechanism for active wing deformation.
Yongqiang Zhu +5 more
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Aerodynamic effects on an emulated hovering passerine with different wing-folding amplitudes
Bioinspiration & Biomimetics, 2021Bird flight involves complicated wing kinematics, especially during hovering flight. The detailed aerodynamic effects of wings with higher degrees of freedom (DOFs) remain to be further investigated.
Wei-Han Chen, S. Yeh
semanticscholar +1 more source
Design and Manufacture of the Wing Folding Mechanism for a Bioinspired Ornithopter
2021 Aerial Robotic Systems Physically Interacting with the Environment (AIRPHARO), 2021This paper presents a folding mechanism for ornithopter's wings. The mechanism has been implemented using rods and joints to replicate wing performance of animal flight.
Lorena Calvente, J. Acosta, A. Ollero
semanticscholar +1 more source
Mini Glider Design and Implementation with Wing-Folding Mechanism
Applied Sciences (Switzerland), 2018 This paper describes a mini unmanned glider’s design, simulation, and manufacturing with a novel wing-folding mechanism. The mini-glider is designed for CanSat competition, which has a theme of a Mars glider concept with atmosphere data acquisition.
Ali Anil Demirçali +2 more
exaly +2 more sources
Dynamics simulation of folding wing UAVs launched from a high-altitude balloon platform
Proceedings of the Institution of Mechanical Engineers. Part G, Journal of Aerospace Engineering, 2023It is a new application of the high-altitude balloon system to launch multiple small folding wing unmanned aerial vehicles (UAVs). Based on the design of the launching system, we conduct numerical simulations of the ejection process from the balloon ...
Hangyue Zhang, Yanchu Yang, Rong Cai
semanticscholar +1 more source
Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 2023
In this paper, the aeroelastic instability of folding wings by using the geometrically exact fully intrinsic beam equations is investigated. The important advantages of these equations in comparison with other structural beam equations are complete ...
Sayed Hossein Moravej Barzani +1 more
semanticscholar +1 more source
In this paper, the aeroelastic instability of folding wings by using the geometrically exact fully intrinsic beam equations is investigated. The important advantages of these equations in comparison with other structural beam equations are complete ...
Sayed Hossein Moravej Barzani +1 more
semanticscholar +1 more source
A Biologically-Inspired Flapping-Wing Air Vehicle With Active Folding-Wings
IEEE Robotics and Automation LettersFlapping-Wing Aerial Vehicles (FWAVs) offer unique advantages over traditional fixed-wing and rotary-wing aircraft, including superior maneuverability, energy efficiency, and the capability to navigate through cluttered environments.
Eun-Hyuck Lee +3 more
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A Novel Folding Wing Design and Locking Performance Analysis
2021 3rd International Symposium on Robotics & Intelligent Manufacturing Technology (ISRIMT), 2021Aiming at the problem that the wing size of shipborne and airborne aircraft is restricted by the launching platform, and to further improve the flight performance of the aircraft, a novel folding wing structure is designed. Considering various factors in
Peng Zhang +4 more
semanticscholar +1 more source