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Flutter Characteristics of a Modified Z-Shaped Folding Wing Using a New Non-Intrusive Model

open access: yesAerospace
Unmanned aerial vehicles (UAVs) with folding wings can serve in multiple mission profiles, usually accompanied by sudden changes in flight speed. These bring great challenges to the aeroelastic design of UAVs, especially in the calculation of flutter ...
Wuchao Qi
exaly   +4 more sources

The Functions of Phasic Wing-Tip Folding on Flapping-Wing Aerodynamics

open access: yesBiomimetics
Insects produce a variety of highly acrobatic maneuvers in flight owing to their ability to achieve various wing-stroke trajectories. Among them, beetles can quickly change their flight velocities and make agile turns.
Bing Li, Yao Li, Yiming Li
exaly   +4 more sources

Aerodynamic Analysis and Simulation for a Z-Shaped Folding Wing UAV

open access: yesAerospace
The potential of folding wing unmanned aerial vehicles (UAVs) in enhancing the adaptability of complex missions is substantial. Analyzing the aerodynamic characteristics of these UAVs is vital for optimizing the design of their folding wing configuration
Xiangying Guo
exaly   +4 more sources

Deployment Modes and Aerodynamic Analysis of UAV Orthogonal Biaxial Folding Wing

open access: yesAerospace, 2022
Considering the deployment characteristics of the folding wing, this paper proposed three deployment modes, synchronous deployment, fixed-axis–non-fixed-axis stepwise deployment, and non-fixed-axis–fixed-axis stepwise deployment, to obtain the optimal ...
Gang Wang   +7 more
doaj   +2 more sources

Resonance-Driven Passive Folding/Unfolding Flapping Wing Actuator

open access: yesApplied Sciences, 2020
The wings of flapping-wing micro aerial vehicles (MAVs) face the risk of breakage. To solve this issue, we propose the use of a biomimetic foldable wing.
Takashi Ozaki   +2 more
doaj   +2 more sources

Aerodynamic Characteristics of a Z-Shaped Folding Wing

open access: yesAerospace, 2023
Z-shaped folding wings have the potential to enhance the flight performance of an aircraft, contingent upon its mission requirements. However, the current scope of research on unmanned aerial vehicles (UAVs) with Z-shaped folding wings primarily focuses ...
Yongchang Huang   +2 more
doaj   +2 more sources

Research on the Motion Characteristics of Longitudinal Second Fold Wings [PDF]

open access: yesHangkong bingqi, 2023
Folding wings are flight device structural components that require small space for ammunition seeking, facilitating the storage and transportation of launch boxes (barrels), greatly saving ammunition storage and transportation space, and increasing the ...
Lü Tiegang, Zhang Xiaowen, Li Yongwei, Zhang Yu
doaj   +1 more source

Z-folding aircraft electromagnetic scattering analysis based on hybrid grid matrix transformation

open access: yesScientific Reports, 2022
To study the electromagnetic scattering characteristics of a morphing aircraft with Z-folding wings, a method of hybrid grid matrix transformation (HGMT) is presented.
Zeyang Zhou, Jun Huang
doaj   +1 more source

Micro-structures, nanomechanical properties and flight performance of three beetles with different folding ratios

open access: yesBeilstein Journal of Nanotechnology, 2022
When beetles are not in flight, their hind wings are folded and hidden under the elytra to reduce their size. This provided inspiration for the design of flapping-wing micro aerial vehicles (FWMAVs).
Jiyu Sun   +5 more
doaj   +1 more source

Design and Research of High-Speed Aircraft Folding Rudder Structure Based on High-Temperature Alloy [PDF]

open access: yesHangkong bingqi, 2022
In order to cope with the severe coupling effects of aerodynamic heat and aerodynamic load for a long time in the complex flight environment of high heat flow and large load for the folding rudder of high-speed aircraft, as well as the strong constraints
Chen Ke, Jin Ling, Xu Qian, Lei Bao, Wang Congwei, Liang Zudian
doaj   +1 more source

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