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A Bio-inspired Variable-Stiffness Method Based on Antagonism

  • Beihang University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Flexible manipulators need the variable-stiffness function to accomplish different tasks, which is also a challenge for the research of flexible manipulators. This paper proposed a novel bio-inspired variable stiffness method based on muscle antagonism. The variable-stiffness finger is actuated by two tendons to simulate the flexion/extension movement of the human finger. The finger's stiffness is changed by changing the tension on the extensor tendon and flexor tendon. We constructed a variable-stiffness finger prototype to research the variable stiffness performance. It turns out that the finger's stiffness increases with the increase of the tension on the extensor tendon, which verifies the effectiveness of the design. Furthermore, we also assembled a variable-stiffness manipulator to test the variable stiffness performance. The proposed variable-stiffness method indicates the potential application in robots and prosthetic hands.

Original languageEnglish
Title of host publication2021 4th International Conference on Robotics, Control and Automation Engineering, RCAE 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages372-375
Number of pages4
ISBN (Electronic)9781665427302
DOIs
StatePublished - 2021
Event4th International Conference on Robotics, Control and Automation Engineering, RCAE 2021 - Wuhan, China
Duration: 4 Nov 20216 Nov 2021

Publication series

Name2021 4th International Conference on Robotics, Control and Automation Engineering, RCAE 2021

Conference

Conference4th International Conference on Robotics, Control and Automation Engineering, RCAE 2021
Country/TerritoryChina
CityWuhan
Period4/11/216/11/21

Keywords

  • antagonism
  • continuum finger
  • tendon-driven
  • variable stiffness

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