Vibrational control: A hidden stabilization mechanism in insect flight.

Autor:	Taha HE; Department of Mechanical and Aerospace Engineering, University of California, Irvine, Irvine, CA 92617, USA. hetaha@uci.edu., Kiani M; Department of Mechanical and Aerospace Engineering, University of California, Irvine, Irvine, CA 92617, USA., Hedrick TL; Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA., Greeter JSM; Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.; Technology Deployment and Outreach, Pacific Northwest National Laboratory, Richland, WA 99352, USA.
Jazyk:	angličtina
Zdroj:	Science robotics [Sci Robot] 2020 Sep 30; Vol. 5 (46).
DOI:	10.1126/scirobotics.abb1502
Abstrakt:	It is generally accepted among biology and engineering communities that insects are unstable at hover. However, existing approaches that rely on direct averaging do not fully capture the dynamical features and stability characteristics of insect flight. Here, we reveal a passive stabilization mechanism that insects exploit through their natural wing oscillations: vibrational stabilization. This stabilization technique cannot be captured using the averaging approach commonly used in literature. In contrast, it is elucidated using a special type of calculus: the chronological calculus. Our result is supported through experiments on a real hawkmoth subjected to pitch disturbance from hovering. This finding could be particularly useful to biologists because the vibrational stabilization mechanism may also be exploited by many other creatures. Moreover, our results may inspire more optimal designs for bioinspired flying robots by relaxing the feedback control requirements of flight. (Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.)
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu