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2023 Fiscal Year Final Research Report

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

Research Project

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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
Keywordsテンセグリティロボット / ソフトロボット / 冗長性
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.

Free Research Field

ロボティクス

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.

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Published: 2025-01-30  

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