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Hula-Hoop-Like Motion and Subcritical Bifurcation of the Rotation of an Elliptical Paper Disk Coated with Camphor
http://hdl.handle.net/10935/0002005916
http://hdl.handle.net/10935/00020059162b8df57c-f172-41f0-8b00-2b701138b6eb
| 名前 / ファイル | ライセンス | アクション |
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https://doi.org/10.7566/JPSJ.91.074002
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| アイテムタイプ | default_学術雑誌論文 / Journal Article(1) | |||||||
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| タイトル | ||||||||
| タイトル | Hula-Hoop-Like Motion and Subcritical Bifurcation of the Rotation of an Elliptical Paper Disk Coated with Camphor | |||||||
| 言語 | en | |||||||
| 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 | |||||||
| アクセス権 | ||||||||
| アクセス権 | metadata only access | |||||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||||
| 著者 |
下川 倫子
× 下川 倫子× Sakaguchi Hidetsugu
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| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | When an elliptical camphor-coated paper disk, with the center of mass fixed at the axis of rotation, is placed on the surface of water, it rotates spontaneously with a constant angular velocity. In experiments involving different water depths, we found that a subcritical bifurcation occurs; i.e., the camphor-coated disk remains at rest when the water depth is shallow, rotates when sufficiently deep, and exists in both the rotational and rest states at the intermediate depth. The camphor-coated disk exhibits a hula-hoop-like motion as it rotates. We propose a phenomenological model of this phenomenon that includes the effect of friction at the rotation axis. The model produces behaviors similar to the experimental results, such as the hula-hoop-like motion of the camphor-coated disk and the subcritical bifurcation. These results show that the friction is important for the emergence of both the subcritical bifurcation and the hula-hoop-like motion. | |||||||
| 言語 | en | |||||||
| 書誌情報 |
en : Journal of the Physical Society of Japan 巻 91, 号 7, 発行日 2022-07-15 |
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| 出版者 | ||||||||
| 出版者 | 日本物理学会 | |||||||
| 言語 | ja | |||||||
| ISSN | ||||||||
| 収録物識別子タイプ | EISSN | |||||||
| 収録物識別子 | 1347-4073 | |||||||
| DOI | ||||||||
| 識別子タイプ | DOI | |||||||
| 関連識別子 | 10.7566/JPSJ.91.074002 | |||||||
| 権利 | ||||||||
| 権利情報 | © The Physical Society of Japan | |||||||
| 言語 | en | |||||||
