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タイトル: Advantage of straight walk instability in turning maneuver of multilegged locomotion: a robotics approach.
著者: Aoi, Shinya  KAKEN_id
Tanaka, Takahiro
Fujiki, Soichiro
Funato, Tetsuro
Senda, Kei  kyouindb  KAKEN_id
Tsuchiya, Kazuo
著者名の別形: 青井, 伸也
田中, 隆浩
藤木, 聡一朗
舩戸, 徹郎
泉田, 啓
土屋, 和雄
発行日: 22-Jul-2016
出版者: Springer Nature
誌名: Scientific reports
巻: 6
論文番号: 30199
抄録: Multilegged locomotion improves the mobility of terrestrial animals and artifacts. Using many legs has advantages, such as the ability to avoid falling and to tolerate leg malfunction. However, many intrinsic degrees of freedom make the motion planning and control difficult, and many contact legs can impede the maneuverability during locomotion. The underlying mechanism for generating agile locomotion using many legs remains unclear from biological and engineering viewpoints. The present study used a centipede-like multilegged robot composed of six body segments and twelve legs. The body segments are passively connected through yaw joints with torsional springs. The dynamic stability of the robot walking in a straight line changes through a supercritical Hopf bifurcation due to the body axis flexibility. We focused on a quick turning task of the robot and quantitatively investigated the relationship between stability and maneuverability in multilegged locomotion by using a simple control strategy. Our experimental results show that the straight walk instability does help the turning maneuver. We discuss the importance and relevance of our findings for biological systems and propose a design principle for a simple control scheme to create maneuverable locomotion of multilegged robots.
記述: ムカデはなぜあれほど機敏に動けるのだろうか?-多足ロボットを用いた実験的検証-. 京都大学プレスリリース. 2016-07-22.
著作権等: © The Author(s) 2016. This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
URI: http://hdl.handle.net/2433/216072
DOI(出版社版): 10.1038/srep30199
PubMed ID: 27444746
関連リンク: https://www.kyoto-u.ac.jp/ja/research-news/2016-07-22
出現コレクション:学術雑誌掲載論文等

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