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Curvature-induced stiffening of a fish fin
https://oist.repo.nii.ac.jp/records/304
https://oist.repo.nii.ac.jp/records/3049ca24dc3-15ad-4257-bb19-6790096724b7
名前 / ファイル | ライセンス | アクション |
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Full-Text (699.3 kB)
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Creative Commons Attribution 4.0 International
(http://creativecommons.org/licenses/by/4.0/) |
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2018-03-06 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Curvature-induced stiffening of a fish fin | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者(英) |
Nguyen, Khoi
× Nguyen, Khoi× Yu, Ning× Bandi, Mahesh M.× Venkadesan, Madhusudhan× Mandre, Shreyas |
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書誌情報 |
en : Journal of The Royal Society Interface 巻 14, 号 130, 発行日 2017-05-31 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | How fish modulate their fin stiffness during locomotive manoeuvres remains unknown. We show that changing the fin's curvature modulates its stiffness. Modelling the fin as bendable bony rays held together by a membrane, we deduce that fin curvature is manifested as a misalignment of the principal bending axes between neighbouring rays. An external force causes neighbouring rays to bend and splay apart, and thus stretches the membrane. This coupling between bending the rays and stretching the membrane underlies the increase in stiffness. Using three-dimensional reconstruction of a mackerel (Scomber japonicus) pectoral fin for illustration, we calculate the range of stiffnesses this fin is expected to span by changing curvature. The three-dimensional reconstruction shows that, even in its geometrically flat state, a functional curvature is embedded within the fin microstructure owing to the morphology of individual rays. As the ability of a propulsive surface to transmit force to the surrounding fluid is limited by its stiffness, the fin curvature controls the coupling between the fish and its surrounding fluid. Thereby, our results provide mechanical underpinnings and morphological predictions for the hypothesis that the spanned range of fin stiffnesses correlates with the behaviour and the ecological niche of the fish. | |||||
出版者 | ||||||
出版者 | The Royal Society | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1742-5689 | |||||
PubMed番号 | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | PMID | |||||
関連識別子 | info:pmid/28566508 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1098/rsif.2017.0247 | |||||
権利 | ||||||
権利情報 | © 2017 The Author(s). | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://rsif.royalsocietypublishing.org/content/14/130/20170247 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |