期刊
SCIENCE
卷 370, 期 6521, 页码 1214-1218出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.abd3285
关键词
-
资金
- 2020 KU Brain Pool Program of Konkuk University
- National Research Foundation of Korea (NRF) - Korea government (MSIT) [NRF-2018R1A4A1024191]
At rest, beetles fold and tuck their hindwings under the elytra. For flight, the hindwings are deployed through a series of unfolding configurations that are passively driven by flapping forces. The folds lock into place as the wing fully unfolds and thereafter operates as a flat membrane to generate the aerodynamic forces. We show that in the rhinoceros beetle (Allomyrina dichotoma), these origami-like folds serve a crucial shock-absorbing function during in-flight wing collisions. When the wing collides with an object, it collapses along the folds and springs back in place within a single stroke. Collisions are thus dampened, helping the beetle to promptly recover the flight. We implemented this mechanism on a beetle-inspired wing on a flapping-wing robot, thereby enabling it to fly safely after collisions.
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