气候变化领域集成服务门户(CCPortal): How flight feathers stick together to form a continuous morphing wing

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DOI	10.1126/science.aaz3358
	How flight feathers stick together to form a continuous morphing wing
	Matloff L.Y.; Chang E.; Feo T.J.; Jeffries L.; Stowers A.K.; Thomson C.; Lentink D.
发表日期	2020
ISSN	0036-8075
起始页码	293
结束页码	297
卷号	367 期号:6475
英文摘要	Variable feather overlap enables birds to morph their wings, unlike aircraft. They accomplish this feat by means of elastic compliance of connective tissue, which passively redistributes the overlapping flight feathers when the skeleton moves to morph the wing planform. Distinctive microstructures form “directional Velcro,” such that when adjacent feathers slide apart during extension, thousands of lobate cilia on the underlapping feathers lock probabilistically with hooked rami of overlapping feathers to prevent gaps. These structures unlock automatically during flexion. Using a feathered biohybrid aerial robot, we demonstrate how both passive mechanisms make morphing wings robust to turbulence. We found that the hooked microstructures fasten feathers across bird species except silent fliers, whose feathers also lack the associated Velcro-like noise. These findings could inspire innovative directional fasteners and morphing aircraft. © 2020 American Association for the Advancement of Science. All rights reserved.
关键词	aircraft bird feather flight activity microstructure nature-society relations skeleton wing morphology aircraft article bird flight feather noise nonhuman robotics wing anatomy and histology animal Columbidae elastic tissue feather flying physiology ultrastructure wing Aves Animals Columbidae Elastic Tissue Feathers Flight, Animal Wings, Animal
语种	英语
来源机构	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133785
推荐引用方式 GB/T 7714	Matloff L.Y.,Chang E.,Feo T.J.,et al. How flight feathers stick together to form a continuous morphing wing[J]. Science,2020,367(6475).
APA	Matloff L.Y..,Chang E..,Feo T.J..,Jeffries L..,Stowers A.K..,...&Lentink D..(2020).How flight feathers stick together to form a continuous morphing wing.,367(6475).
MLA	Matloff L.Y.,et al."How flight feathers stick together to form a continuous morphing wing".367.6475(2020).