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Design and Analysis of Disc-Spring-Based Cable-Driven Variable Stiffness Joints

  • Beihang University

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

Abstract

Variable stiffness mechanisms perform better compliance during forceful interactions with uncertain environments. This paper proposes a novel disc-spring-based cable-driven variable stiffness joint. Considering the elastic cable and variable stiffness device, stiffness model of a general cable-driven joint is established. Mechanical property of a disc spring is analyzed. A variable stiffness device is obtained by stacking disc springs with different modes. Influence of cable tensions on stiffness of a revolute joint and a Hooke joint is evaluated. Two cases, a RR serial chain and an UR serial chain, are studied to verify the feasibility of stiffness adjustment through regulating cable tensions. Structure of the proposed variable stiffness joint is simple and compact, which can be utilized in cable-driven mechanisms widely.

Original languageEnglish
Title of host publicationAdvances in Mechanism, Machine Science and Engineering in China - Proceedings of IFToMM CCMMS 2022
EditorsXinjun Liu
PublisherSpringer Science and Business Media Deutschland GmbH
Pages729-745
Number of pages17
ISBN (Print)9789811993978
DOIs
StatePublished - 2023
Event23rd IFToMM China International Conference on Mechanism and Machine Science and Engineering, IFToMM CCMMS 2022 - Yantai, China
Duration: 30 Jul 20221 Aug 2022

Publication series

NameLecture Notes in Mechanical Engineering
ISSN (Print)2195-4356
ISSN (Electronic)2195-4364

Conference

Conference23rd IFToMM China International Conference on Mechanism and Machine Science and Engineering, IFToMM CCMMS 2022
Country/TerritoryChina
CityYantai
Period30/07/221/08/22

Keywords

  • Cable-driven
  • Disc spring
  • Mechanism analysis
  • Variable stiffness

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