Results 11 to 20 of about 4,991 (249)
PLoS ONE, 2014 We revise two relatively rare ensign wasp genera, whose species are restricted to Sub-Saharan Africa: Afrevania and Trissevania. Afrevania longipetiolata sp. nov., Trissevania heatherae sp. nov., T. hugoi sp. nov., T. mrimaensis sp. nov. and T.
István Mikó +4 more
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Sizing of High Aspect Ratio Wings with Folding Wing Tips
AIAA SCITECH 2022 Forum, 2022 High-aspect-ratio wings are of particular interest to modern aircraft design due to the inherent reduction in induced drag that they provide. However, such wing configurations often come with problems such as increased structural weight and oversized wingspans for existing airport facilities. Unlike conventional folding wingtips, as used on the 777-X,
Gu, Huaiyuan +3 more
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Z-folding aircraft electromagnetic scattering analysis based on hybrid grid matrix transformation
Scientific 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
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Beilstein 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
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Design and Research of High-Speed Aircraft Folding Rudder Structure Based on High-Temperature Alloy [PDF]
Hangkong 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
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Resonance-Driven Passive Folding/Unfolding Flapping Wing Actuator
Applied 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
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Aerodynamic Characteristics of a Z-Shaped Folding Wing
Aerospace, 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
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Analysis of Motion Characteristics of Bionic Morphing Wing Based on Sarrus Linkages
Applied Sciences, 2022 The variant aircraft can flexibly change its shape to achieve the best sports performance under different flight environments and flight missions. Changing the shape of the wings is a major form of variant aircraft.
Zhong Yun +3 more
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A drone with insect-inspired folding wings
2016 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2016 Flying robots are increasingly adopted in search and rescue missions because of their capability to quickly collect and stream information from remote and dangerous areas. To further enhance their use, we are investigating the development of a new class of drones, foldable sensorized hubs that can quickly take off from rescuers' hands as soon as they ...
Dufour, Louis +3 more
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International Journal of Aerospace Engineering, 2022 A folding wing aircraft can autonomously change its configuration in flight to respond to different flying environments. Hinge moment during morphing process is an important basis for driving mechanism design and structural strength check, and its ...
Hao Xu +4 more
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