Stiffness Model of a 3-DOF Parallel Manipulator with Two Additional Legs

This paper investigates the stiffness modelling of a 3-DOF parallel manipulator with two additional legs. The stiffness model in six directions of the 3-DOF parallel manipulator with two additional legs is derived by performing condensation of DOFs for the joint connection and treatment of the fixed...

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Main Authors: Guang Yu, Jun Wu, Liping Wang
Format: Article
Language:English
Published: SAGE Publishing 2014-10-01
Series:International Journal of Advanced Robotic Systems
Online Access:https://doi.org/10.5772/59306
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author Guang Yu
Jun Wu
Liping Wang
author_facet Guang Yu
Jun Wu
Liping Wang
author_sort Guang Yu
collection DOAJ
description This paper investigates the stiffness modelling of a 3-DOF parallel manipulator with two additional legs. The stiffness model in six directions of the 3-DOF parallel manipulator with two additional legs is derived by performing condensation of DOFs for the joint connection and treatment of the fixed-end connections. Moreover, this modelling method is used to derive the stiffness model of the manipulator with zero/one additional legs. Two performance indices are given to compare the stiffness of the parallel manipulators with two additional legs with those of the manipulators with zero/one additional legs. The method not only can be used to derive the stiffness model of a redundant parallel manipulator, but also to model the stiffness of non-redundant parallel manipulators.
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spelling doaj.art-d5d61ca4b8e342fdb2f51aaa19de83c72022-12-22T00:49:58ZengSAGE PublishingInternational Journal of Advanced Robotic Systems1729-88142014-10-011110.5772/5930610.5772_59306Stiffness Model of a 3-DOF Parallel Manipulator with Two Additional LegsGuang Yu0Jun Wu1Liping Wang2 Beijing Key Lab of Precision/Ultra-precision Manufacturing Equipment and Control, Beijing, China Beijing Key Lab of Precision/Ultra-precision Manufacturing Equipment and Control, Beijing, China Beijing Key Lab of Precision/Ultra-precision Manufacturing Equipment and Control, Beijing, ChinaThis paper investigates the stiffness modelling of a 3-DOF parallel manipulator with two additional legs. The stiffness model in six directions of the 3-DOF parallel manipulator with two additional legs is derived by performing condensation of DOFs for the joint connection and treatment of the fixed-end connections. Moreover, this modelling method is used to derive the stiffness model of the manipulator with zero/one additional legs. Two performance indices are given to compare the stiffness of the parallel manipulators with two additional legs with those of the manipulators with zero/one additional legs. The method not only can be used to derive the stiffness model of a redundant parallel manipulator, but also to model the stiffness of non-redundant parallel manipulators.https://doi.org/10.5772/59306
spellingShingle Guang Yu
Jun Wu
Liping Wang
Stiffness Model of a 3-DOF Parallel Manipulator with Two Additional Legs
International Journal of Advanced Robotic Systems
title Stiffness Model of a 3-DOF Parallel Manipulator with Two Additional Legs
title_full Stiffness Model of a 3-DOF Parallel Manipulator with Two Additional Legs
title_fullStr Stiffness Model of a 3-DOF Parallel Manipulator with Two Additional Legs
title_full_unstemmed Stiffness Model of a 3-DOF Parallel Manipulator with Two Additional Legs
title_short Stiffness Model of a 3-DOF Parallel Manipulator with Two Additional Legs
title_sort stiffness model of a 3 dof parallel manipulator with two additional legs
url https://doi.org/10.5772/59306
work_keys_str_mv AT guangyu stiffnessmodelofa3dofparallelmanipulatorwithtwoadditionallegs
AT junwu stiffnessmodelofa3dofparallelmanipulatorwithtwoadditionallegs
AT lipingwang stiffnessmodelofa3dofparallelmanipulatorwithtwoadditionallegs