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Development of a soft tongue mechanism by using a wire-pulling mechanism with embedded soft tubes for a utterance robot

Research Project

Project/Area Number 18K13717
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 20010:Mechanics and mechatronics-related
Research InstitutionTokyo Denki University

Principal Investigator

Endo Nobutsuna  東京電機大学, 未来科学部, 准教授 (30535844)

Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsソフトロボティクス / ソフトメカニクス / ワイヤ駆動機構 / 舌 / 発話ロボット / 柔軟センサ / 誘電エラストマ / ロボティクス / バイオメカニクス / 自動制御 / 音響学
Outline of Final Research Achievements

To construct a soft tongue mechanism for a mechanical utterance robot, I proposed a soft-tube embedded wire-driven method as a drive mechanism that has affinity with a soft object. I fabricated the actual mechanism, performed deformation modeling, durability evaluation tests, and evaluation tests of its motion performance and deformation model. The durability was greatly improved by the application of this method. It was confirmed that the actual mechanism could contract up to 50% and bend up to 90 degrees. The error between the deformation model and the actual device was mechanism to be approximately 10%, with a maximum error of 15%.
A dielectric elastomer sensor was developed for measuring deformation of a soft object. The sensor was fabricated using multiple dielectric layer materials, and its response speed and hysteresis were evaluated. I attached several of these sensors to a soft objects and confirmed that they can determine the bending direction of curved deformation.

Academic Significance and Societal Importance of the Research Achievements

本研究では,「柔軟物を駆動する機構をどのように構成するか」というロボット工学的・機構設計学的「問い」に対し,ヒト口腔サイズという極めて狭小なサイズ制約下においても適用可能な柔軟物駆動手法を提案しており,機械力学・制御工学・材料力学を総合するソフトロボティクス設計論の構築に寄与する.さらに本研究の成果は,発話再現だけではなく,咀嚼・嚥下・吸啜などの口腔周辺系の物理モデリングや,舌を失った人のための人工舌の補綴技術の構築に繋がる.

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (12 results)

All 2022 2021 2020 2019 2018

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (9 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Journal Article] Gradual Rhythm Change of a Drumming Robot Enhances the Pseudosense of Leading in Human?Robot Interactions2022

    • Author(s)
      Takahashi Hideyuki、Morita Tomoyo、Ban Midori、Sabu Hiroka、Endo Nobutsuna、Asada Minoru
    • Journal Title

      IEEE Access

      Volume: 10 Pages: 36813-36822

    • DOI

      10.1109/access.2022.3163722

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Deformation model and experimental evaluation of a contractable and bendable wire-pulling mechanism with embedded soft tubes for a robotic tongue2021

    • Author(s)
      Endo Nobutsuna
    • Journal Title

      ROBOMECH Journal

      Volume: 8 Issue: 1

    • DOI

      10.1186/s40648-021-00193-6

    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Flexible Pneumatic Bending Actuator for a Robotic Tongue2020

    • Author(s)
      Nobutsuna Endo, Yuta Kizaki, and Norihiro Kamamichi
    • Journal Title

      Journal of Robotics and Mechatronics

      Volume: 32 Issue: 5 Pages: 894-902

    • DOI

      10.20965/jrm.2020.p0894

    • NAID

      130007928032

    • ISSN
      0915-3942, 1883-8049
    • Year and Date
      2020-10-20
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Wire-Pulling Mechanism with Embedded Soft Tubes for Robot Tongue2020

    • Author(s)
      Nobutsuna Endo
    • Organizer
      23rd CISM IFToMM Symposium on Robot Design, Dynamics and Control (ROMANSY 2020)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Wire-pulling Mechanism with Embedded Soft Tubes for Robot Tongue2020

    • Author(s)
      Nobutsuna Endo
    • Organizer
      23rd CISM IFToMM Symposium on Robot Design, Dynamics and Control
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 舌機構のための柔軟空気圧湾曲アクチュエータ-変位と曲率の同時制御-2019

    • Author(s)
      木﨑裕太,遠藤信綱,釜道紀浩
    • Organizer
      第37回日本ロボット学会学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] Dielectric elastomer sensor for shape measurement of soft robots2018

    • Author(s)
      Kazuki Morita, Yuta Kizaki, Nobutsuna Endo, Norihiro Kamamichi
    • Organizer
      Japan-China Joint Workshop on Recent Advances on Active Soft Materials 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 誘電体エラストマーセンサにおける誘電層材料の比較検証2018

    • Author(s)
      森田和希,遠藤信綱,釜道紀浩
    • Organizer
      第36回日本ロボット学会学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] 舌機構のための柔軟空気圧湾曲アクチュエータ-応答特性の基礎検証-2018

    • Author(s)
      木﨑裕太,遠藤信綱,釜道紀浩
    • Organizer
      第36回日本ロボット学会学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] 舌機構のための柔軟空気圧湾曲アクチュエータ-材料の硬さによる特性変化の検証-2018

    • Author(s)
      木﨑裕太,遠藤信綱,釜道紀浩
    • Organizer
      第19回計測自動制御学会システムインテグレーション部門講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] ソフトロボットの形状測定のための誘電体エラストマーセンサ:センサ配置の基礎検証2018

    • Author(s)
      森田和希,遠藤信綱,釜道紀浩
    • Organizer
      第28回日本MRS年次大会
    • Related Report
      2018 Research-status Report
  • [Presentation] ソフトマテリアルを用いた機械式発話ロボット2018

    • Author(s)
      遠藤信綱
    • Organizer
      計測自動制御学会システムインテグレーション部門ソフトマテリアル応用部会主催講演会
    • Related Report
      2018 Research-status Report
    • Invited

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Published: 2018-04-23   Modified: 2023-01-30  

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