Uncover rock-climbing fish's secret of balancing tight adhesion and fast sliding for bioinspired robots
نویسندگان
چکیده
Abstract The underlying principle of the unique dynamic adaptive adhesion capability a rock-climbing fish (Beaufortia kweichowensis) that can resist pull-off force 1000 times its weight while achieving simultaneous fast sliding (7.83 body lengths per second) remains mystery in open literature. This adhesion-sliding ability has long been sought for underwater robots. However, strong surface and appear to contradict each other due need high contact stress. skillfully balanced mechanism tight-surface is disclosed this work. Stefan (0.1 mN/mm2) generated by micro-setae on pectoral fins ventral leads 70 N/m2 through conforming overall form sealing chamber. would be neutralized simultaneously negative pressure caused volumetric change fish's hydrodynamic interaction suction cup work cohesively contribute low friction resistance therefore slide rapidly clinging surface. Inspired mechanism, an robot developed with incorporated structures mimic functionality fabricating array attaching them soft self-adaptive chamber, which demonstrates similar superiorities over conventional ones terms balancing tightness sliding.
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ژورنال
عنوان ژورنال: National Science Review
سال: 2023
ISSN: ['2053-714X', '2095-5138']
DOI: https://doi.org/10.1093/nsr/nwad183