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Kinematic analysis of overconstrained manipulators with partial subspaces using decomposition method

Published online by Cambridge University Press:  30 September 2021

Özgün Selvi Open the ORCID record for Özgün Selvi [Opens in a new window]
Özgün Selvi*
Affiliation:
Mechanical Engineering Department, Çankaya University, Ankara, Turkey
*
E-mail: ozgunselvi@cankaya.edu.tr
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Summary

Overconstrained manipulators in lower subspaces with unique motions can be created and analyzed. However, far too little attention has been paid to creating a generic method for overconstrained manipulators kinematic analysis. This study aimed to evaluate a generic methodology for kinematic analysis of overconstrained parallel manipulators with partial subspaces (OPM-PS) using decomposition to parallel manipulators (PMs) in lower subspaces. The theoretical dimensions of the method are depicted, and the use of partial subspace for overconstrained manipulators is portrayed. The methodology for the decomposition method is described and exemplified by designing and evaluating the method to two overconstrained manipulators with 5 degrees of freedom (DoF) and 3 DoF. The inverse kinematic analysis is detailed with position analysis and Jacobian along with the inverse velocity analysis. The workspace analysis for the manipulators using the methodology is elaborated with numerical results. The results of the study show that OPM-PS can be decomposed into PMs with lower subspace numbers. As imaginary joints are being utilized in the proposed methodology, it will create additional data to consider in the design process of the manipulators. Thus, it becomes more beneficial in design scenarios that include workspace as an objective.

Keywords

overconstraineddecomposition methodparallel manipulator
Type
Research Article
Information
Robotica , Volume 40 , Issue 6 , June 2022 , pp. 1783 - 1798
Copyright
© The Author(s), 2021. Published by Cambridge University Press

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