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Realization of a hyper-redundant manipulator with more than 100 actuators

Research Project

Project/Area Number 22K19815
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 61:Human informatics and related fields
Research InstitutionKyushu Institute of Technology

Principal Investigator

Ikemoto Shuhei  九州工業大学, 大学院生命体工学研究科, 准教授 (00588353)

Project Period (FY) 2022-06-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2023: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2022: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Keywordsテンセグリティロボット / ソフトロボット / 冗長性 / 超冗長 / テンセグリティ
Outline of Research at the Start

やわらかい材料を利用することの欠点に囚われることなく,やわらかさが生む利点を追求することで,ソフトロボティクスは新しい研究領域となった.本研究では,このプロセスを「冗長さ」への着目から同様に辿る.本研究では,100以上の独立なアクチュエータを備えた柔軟マニピュレータを実際に開発し,冗長自由度が極端に多いことで可能になる冗長性の利用方法の提案を目指す.具体的には,マニピュレータの開発のため,関節自由度とアクチュエータ数を段階的に増やすことができるスケーラブルな設計方法を提案し,冗長性を利用する方法として,タスク空間に直交する空間に具体的な意味を当てはめていく手法を提案する.

Outline of Final Research Achievements

This study proposed a design and control for a robot driven by as many actuators as possible. As the design method, specifically, we proposed a mechanical design that minimizes mechanical interference and friction even if the number of actuators is increased by using tensegrity. The validity was confirmed by developing a redundant manipulator driven by 40 pneumatic cylinders using this design. As the control method, we proposed a forward and inverse kinematics modeling method using an autoencoder type network. Applying this method to the developed redundant manipulator, we successfuly confirmed/demonstrated the validity of the design and control methods.

Academic Significance and Societal Importance of the Research Achievements

生物の身体はロボットよりもやわらかく,多くの関節自由度を持ち,さらに多くの筋肉で動される.このロボットと生物の間にある「柔軟性の差」と「冗長性の差」のうち,「柔軟性の差」については,ロボット全体を柔軟にするなどの挑戦が行われ,新しい分野として「ソフトロボティクス」が生まれた.一方,「冗長性の差」については,関節やアクチュエータを可能な限り多くするなどの挑戦がなかった.本研究は,冗長性の追求という新しい挑戦に取り組んだ.ロボットが汎用的になるほど,そのロボットは多くの自由度を備えなければならない.本研究は,その備えとして方法論を整備するものであり,萌芽的研究としての異議がある.

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (13 results)

All 2023 2022 Other

All Int'l Joint Research (2 results) Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (9 results) (of which Int'l Joint Research: 5 results)

  • [Int'l Joint Research] Arizona State University(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Arizona State University(米国)

    • Related Report
      2022 Research-status Report
  • [Journal Article] Development of Tensegrity Manipulator Driven by 40 Pneumatic Cylinders for Investigating Functionality in Hyper-Redundant Musculoskeletal Systems2023

    • Author(s)
      Yoshimitsu Yuhei、Ikemoto Shuhei
    • Journal Title

      Journal of Robotics and Mechatronics

      Volume: 35 Issue: 5 Pages: 1366-1373

    • DOI

      10.20965/jrm.2023.p1366

    • ISSN
      0915-3942, 1883-8049
    • Year and Date
      2023-10-20
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Posture control of tensegrity manipulator based on kinematic model using kernel ridge regression2022

    • Author(s)
      Yuhei Yoshimitu, Kenta Tsukamoto and Shuhei Ikemoto
    • Journal Title

      Artificial Life and Robotics

      Volume: 27 Issue: 4 Pages: 684-690

    • DOI

      10.1007/s10015-022-00789-0

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] $\aplpha$-MDF: An Attention-based Multimodal Differentiable Filter for Robot State Estimation2023

    • Author(s)
      Xiao Liu, Yifan Zhou, Shuhei Ikemoto, and Heni Ben Amor
    • Organizer
      Conference on Robot Learning
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Forward/Inverse Kinematics Modeling for Tensegrity Manipulator based on Goal-conditioned Variational Autoencoder2023

    • Author(s)
      Yuhei Yoshimitu, Takayuki Osa, and Shuhei Ikemoto
    • Organizer
      IEEE/RSJ International Conference on Intelligent Robots and Systems
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Learning Soft Robot Dynamics using Differentiable Kalman Filters and Spatio-Temporal Embeddings2023

    • Author(s)
      Xiao Liu, Shuhei Ikemoto, Yuhei Yoshimitsu, and Heni Ben Amor
    • Organizer
      IEEE/RSJ International Conference on Intelligent Robots and Systems
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Data-driven Posture Control for Tensegrity Manipulator based on Accelerometer Measurements2023

    • Author(s)
      Kazuki Wada, Yuhei Yoshimitsu, and Shuhei Ikemoto
    • Organizer
      International Symposium on Artificial Life and Robotics
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ストラットの姿勢を既知とするテンセグリティの形状推定手法2023

    • Author(s)
      村井和弥,池本周平
    • Organizer
      FANシンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] ストラットの姿勢情報に基づくテンセグリティの形状推定2023

    • Author(s)
      村井和弥,池本周平
    • Organizer
      ロボティクス・メカトロニクス講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 40本の空気圧シリンダで駆動されるテンセグリティマニピュレータの\\ 順・逆運動学モデル学習2023

    • Author(s)
      吉満悠平,池本周平
    • Organizer
      ロボティクス・メカトロニクス講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Development of Pneumatically Driven Tensegrity Manipulator without Mechanical Springs2022

    • Author(s)
      Yuhei Yoshimitsu and Shuhei Ikemoto
    • Organizer
      IEEE/RSJ International Conference on Intelligent Robots and Systems
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 40 個の空気圧アクチュエータで駆動する冗長テンセグリティロボットアーム2022

    • Author(s)
      吉満悠平,池本周平
    • Organizer
      ロボティクス・メカトロニクス講演会
    • Related Report
      2022 Research-status Report

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Published: 2022-07-05   Modified: 2025-01-30  

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