Design of constant-force compliant sarrus mechanism considering stiffness nonlinearity of compliant joints

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12 Scopus citations

Abstract

Constant-force compliant mechanisms could be useful in numerous applications. This paper presents a design of a constant-force compliant Sarrus mechanism utilizing cross-spring flexural pivots. As we all know, the stiffness of flexural pivots may exhibit significant nonlinearity when they undergo large deflection. Therefore, an empirical equation to capture the nonlinear stiffness of cross-spring flexural pivots is obtained. The empirical equation is then used to model CSMs. Based on the model, the design parameters of a constant-force CSM were obtained through a particle swarm optimizer.

Original languageEnglish
Title of host publicationMechanisms and Machine Science
EditorsXilun Ding, Xianwen Kong, Jian S. Dai, Jian S. Dai
PublisherKluwer Academic Publishers
Pages107-116
Number of pages10
ISBN (Print)9783319233260
DOIs
StatePublished - 2016
Externally publishedYes

Publication series

NameMechanisms and Machine Science
Volume36
ISSN (Print)2211-0984
ISSN (Electronic)2211-0992

Keywords

  • Compliant mechanism
  • Constant force
  • Sarrus mechanism

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