A New Index for the Evaluation of Mechanism Workspace: Application to Six-DoF Architectures

Christopher Reinaldo, Terence Essomba*, Latifah Nurahmi

*Corresponding author for this work

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

Abstract

Robotic manipulators with more than three Degrees of Freedom (DoF) necessarily have both linear and angular workspaces. For a given set of coordinates in one workspace, there is a variable range of available coordinates in the other workspace. There is a set of linear coordinates from which most mechanisms will have their angular workspace decreasing while moving away from it. In some application, it is important for the mechanism to minimize the angular workspace deterioration while navigating along a trajectory for example. A new index is formulated to measure the workspace variation. It is tested on two different versions of a hybrid mechanism with six DoF made of planar and tripod mechanisms. The use of the workspace gradient allows comparing their ability to maintain a workspace while navigating in the other.

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.
Pages713-720
Number of pages8
ISBN (Print)9783031457043
DOIs
Publication statusPublished - 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

  • Hybrid mechanism
  • Planar mechanism
  • Tripod mechanism
  • Workspace analysis

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