• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of lightweight artificial muscle with polymer threads and carbon nanotube yarn towards true human support

Research Project

Project/Area Number 19K21946
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 20:Mechanical dynamics, robotics, and related fields
Research InstitutionOkayama University

Principal Investigator

Hayashi Yasuhiko  岡山大学, 自然科学研究科, 教授 (50314084)

Co-Investigator(Kenkyū-buntansha) 松本 英俊  東京工業大学, 物質理工学院, 教授 (40345393)
西川 亘  岡山大学, 自然科学研究科, 助教 (80243492)
Project Period (FY) 2019-06-28 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2020: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2019: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords人工筋肉 / カーボンナノチューブ紡績糸 / ポリマー糸 / エントロピー弾性
Outline of Research at the Start

人間支援の要求が急速に高まっている医療・福祉分野で,「柔らかさ」と「曲げ」などへの適応性を限りなく追究した人型ロボットの実用化が期待されている.しかし,従来のモーターを使う「硬い」アクチュエータ機構の概念は全く利用できない.
新たな動力源としてポリマー材料の伸縮動作による人工筋肉が実現できれば,低消費電力で発生するジュール熱で動作し,柔軟,機械駆動装置を必要としないため静音で,大きく伸縮し,軽量で高い出力を同時に兼ね備えることが可能になる.やわらかなポリマーと電気・熱などの外部刺激をどのように複合化するかなど設計・作製について体系的に研究を進める.

Outline of Final Research Achievements

To realize an artificial muscle that stretches and contracts elastomeric yarns using Joule heat generated by applying an electric current to carbon nanotube (CNT) webs, the concept of a "stiff" actuator mechanism, which has been developed so far, cannot be used. The elastic modulus of the CNTs is larger than that of the elastomer, which prevents the elastomeric yarn from stretching and thus prevents the elastomeric yarn from stretching sufficiently. In order to solve this problem, we proposed a method of wrapping CNT webs around elastomeric yarns, and by optimizing the fabrication procedures, we were able to achieve higher force generation than that of bio-muscular or nylon 6,6 yarns.

Academic Significance and Societal Importance of the Research Achievements

本研究は,カーボンナノチューブ(CNT)ウエブをエラストマー糸に巻き付ける方法で複合化した人工筋肉の実現を目指している.大きな変位と高出力を実現する複合構造を検討し,ベンチマークとなる生体筋やナイロン6,6(ポリマー糸)に比べて大きな発生力を実現した.CNTウエブに電流を印加し発生するジュール熱で,細いエラストマー糸が伸長収縮動作する新たな動力源となり,柔軟,機械駆動装置や金属を使うこと無く大きく伸縮し,軽量で高い出力を同時実現できる.柔らかさと曲げなど適応性を限りなく追究した人型ロボットの要素技術の確立につながり,ロボットやパワーアシストスーツなどによる人間支援の要求に資する技術である.

Report

(3 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • Research Products

    (8 results)

All 2020 2019 Other

All Int'l Joint Research (2 results) Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (3 results) (of which Int'l Joint Research: 1 results) Remarks (1 results)

  • [Int'l Joint Research] University of Surrey(英国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Leibniz Institute/Technische University Dresden(ドイツ)

    • Related Report
      2019 Research-status Report
  • [Journal Article] Systematic Investigations of Annealing and Functionalization of Carbon Nanotube Yarns2020

    • Author(s)
      Scholz Maik、Hayashi Yasuhiko、Eckert Victoria、Khavrus Vyacheslav、Leonhardt Albrecht、B?chner Bernd、Mertig Michael、Hampel Silke
    • Journal Title

      Molecules

      Volume: 25 Issue: 5 Pages: 1144-1144

    • DOI

      10.3390/molecules25051144

    • NAID

      120006847418

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] One-minute Joule Annealing Enhances the Thermoelectric Properties of Carbon Nanotube Yarns via the Formation of Graphene at the Interface2019

    • Author(s)
      M. Hada, T. Hasegawa, H. Inoue, M. Takagi, K. Omoto, D. Chujo, S. Iemoto, T. Kuroda, T. Morimoto, T. Hayashi, T. Iijima, T. Tokunaga, N. Ikeda, K. Fujimori, C. Itoh, T. Nishikawa, Y. Yamashita, T. Kiwa, S. Koshihara, S. Maeda, Y. Hayashi
    • Journal Title

      ACS Applied Energy Materials

      Volume: 2 Issue: 10 Pages: 7700-7708

    • DOI

      10.1021/acsaem.9b01736

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 高配向化プロセスの導入によるCNT紡績糸の物性向上2020

    • Author(s)
      森光生,井上寛隆,中川智広,那須郷平,前谷光顕,林靖彦,山下善文,鈴木弘朗,西川亘
    • Organizer
      2020年度 応用物理・物理系学会 中国四国支部合同学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Dry-drawable few-walled carbon nanotube forest synthesized by chemical vapor deposition2019

    • Author(s)
      Hirotaka Inoue, Tomohiro Nakagawa, Masaki Hada, Takeshi Nishikawa, Yoshifumi Yamashita, Yasuhiko Hayashi
    • Organizer
      OptoX-NANO 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] ポストテンショニング処理によるカーボンナノチューブ紡績糸の高強度化2019

    • Author(s)
      井上寛隆,中川智広,西川亘,山下善文,林靖彦
    • Organizer
      2019年 第46回 炭素材料学会年会
    • Related Report
      2019 Research-status Report
  • [Remarks] https://hayashi-lab.org/

    • Related Report
      2019 Research-status Report

URL: 

Published: 2019-07-04   Modified: 2022-12-28  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi