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Accuracy Analysis of a Redundantly Actuated Parallel Mechanism Considering Passive Joint Clearances

  • Jianzhong Ding*
  • , Shiming Zhou
  • , Haoran Yu
  • , Xueao Liu
  • , Chunjie Wang
  • *Corresponding author for this work
  • Beihang University
  • North China University of Technology

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

Abstract

This paper develops a geometric alternative to estimate the positioning and orientation errors of a 3-RSU-U parallel mechanism (PM). Clearances of the passive spherical and universal joints are considered. First, positioning error spaces of the revolute joint, spherical joint and universal joint are derived, respectively. Furthermore, error propagation and accumulation among the serial RSU limb are analyzed, following which, the positioning and orientation error modeling and estimation methods of the manipulator are discussed. The proposed geometric method is further illustrated and validated using a case study of analyzing the orientation errors of the 3-RSU-U PM given various rotation axes. Finally, we conclude the study with discussions.

Original languageEnglish
Title of host publicationAdvances in Mechanism and Machine Science - Proceedings of the 16th IFToMM World Congress 2023—Volume 1
EditorsMasafumi Okada
PublisherSpringer Science and Business Media B.V.
Pages333-345
Number of pages13
ISBN (Print)9783031457043
DOIs
StatePublished - 2023
Event16th International Federation of Theory of Machines and Mechanisms World Congress, IFToMM WC 2023 - Tokyo, Japan
Duration: 5 Nov 20239 Nov 2023

Publication series

NameMechanisms and Machine Science
Volume147
ISSN (Print)2211-0984
ISSN (Electronic)2211-0992

Conference

Conference16th International Federation of Theory of Machines and Mechanisms World Congress, IFToMM WC 2023
Country/TerritoryJapan
CityTokyo
Period5/11/239/11/23

Keywords

  • Accuracy analysis
  • Error modeling
  • Joint clearance
  • Parallel mechanism

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