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Article: Uncover rock-climbing fish's secret of balancing tight adhesion and fast sliding for bioinspired robots

TitleUncover rock-climbing fish's secret of balancing tight adhesion and fast sliding for bioinspired robots
Authors
Keywordsbioinspired
crawling robots
rock-climbing fish
Stefan adhesion
underwater adhesion
underwater robots
Issue Date1-Aug-2023
PublisherOxford University Press
Citation
National Science Review, 2023, v. 10, n. 8 How to Cite?
Abstract

The underlying principle of the unique dynamic adaptive adhesion capability of a rock-climbing fish (Beaufortia kweichowensis) that can resist a pull-off force of 1000 times its weight while achieving simultaneous fast sliding (7.83 body lengths per second (BL/S)) remains a mystery in the literature. This adhesion-sliding ability has long been sought for underwater robots. However, strong surface adhesion and fast sliding appear to contradict each other due to the need for high surface contact stress. The skillfully balanced mechanism of the tight surface adhesion and fast sliding of the rock-climbing fish is disclosed in this work. The Stefan force (0.1 mN/mm2) generated by micro-setae on pectoral fins and ventral fins leads to a 70 N/m2 adhesion force by conforming the overall body of the fish to a surface to form a sealing chamber. The pull-off force is neutralized simultaneously due to the negative pressure caused by the volumetric change of the chamber. The rock-climbing fish's micro-setae hydrodynamic interaction and sealing suction cup work cohesively to contribute to low friction and high pull-off-force resistance and can therefore slide rapidly while clinging to the surface. Inspired by this unique mechanism, an underwater robot is developed with incorporated structures that mimic the functionality of the rock-climbing fish via a micro-setae array attached to a soft self-adaptive chamber, a setup which demonstrates superiority over conventional structures in terms of balancing tight underwater adhesion and fast sliding.


Persistent Identifierhttp://hdl.handle.net/10722/343546
ISSN
2023 Impact Factor: 16.3
2023 SCImago Journal Rankings: 2.934

 

DC FieldValueLanguage
dc.contributor.authorTan, Wenjun-
dc.contributor.authorZhang, Chuang-
dc.contributor.authorWang, Ruiqian-
dc.contributor.authorFu, Yuanyuan-
dc.contributor.authorChen, Qin-
dc.contributor.authorYang, Yongliang-
dc.contributor.authorWang, Wenxue-
dc.contributor.authorZhang, Mingjun-
dc.contributor.authorXi, Ning-
dc.contributor.authorLiu, Lianqing-
dc.date.accessioned2024-05-14T05:21:21Z-
dc.date.available2024-05-14T05:21:21Z-
dc.date.issued2023-08-01-
dc.identifier.citationNational Science Review, 2023, v. 10, n. 8-
dc.identifier.issn2095-5138-
dc.identifier.urihttp://hdl.handle.net/10722/343546-
dc.description.abstract<p>The underlying principle of the unique dynamic adaptive adhesion capability of a rock-climbing fish (<em>Beaufortia kweichowensis</em>) that can resist a pull-off force of 1000 times its weight while achieving simultaneous fast sliding (7.83 body lengths per second (BL/S)) remains a mystery in the literature. This adhesion-sliding ability has long been sought for underwater robots. However, strong surface adhesion and fast sliding appear to contradict each other due to the need for high surface contact stress. The skillfully balanced mechanism of the tight surface adhesion and fast sliding of the rock-climbing fish is disclosed in this work. The Stefan force (0.1 mN/mm<sup>2</sup>) generated by micro-setae on pectoral fins and ventral fins leads to a 70 N/m<sup>2</sup> adhesion force by conforming the overall body of the fish to a surface to form a sealing chamber. The pull-off force is neutralized simultaneously due to the negative pressure caused by the volumetric change of the chamber. The rock-climbing fish's micro-setae hydrodynamic interaction and sealing suction cup work cohesively to contribute to low friction and high pull-off-force resistance and can therefore slide rapidly while clinging to the surface. Inspired by this unique mechanism, an underwater robot is developed with incorporated structures that mimic the functionality of the rock-climbing fish via a micro-setae array attached to a soft self-adaptive chamber, a setup which demonstrates superiority over conventional structures in terms of balancing tight underwater adhesion and fast sliding.</p>-
dc.languageeng-
dc.publisherOxford University Press-
dc.relation.ispartofNational Science Review-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectbioinspired-
dc.subjectcrawling robots-
dc.subjectrock-climbing fish-
dc.subjectStefan adhesion-
dc.subjectunderwater adhesion-
dc.subjectunderwater robots-
dc.titleUncover rock-climbing fish's secret of balancing tight adhesion and fast sliding for bioinspired robots-
dc.typeArticle-
dc.identifier.doi10.1093/nsr/nwad183-
dc.identifier.scopuseid_2-s2.0-85168728981-
dc.identifier.volume10-
dc.identifier.issue8-
dc.identifier.eissn2053-714X-
dc.identifier.issnl2053-714X-

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