Design and stiffness analysis of a class of 2-DoF tendon driven parallel kinematics mechanism

2-DoF Rotational mechanism is increasingly utilized in a large range of industrial applications. However, the structures of most of the existing mechanisms are very complex, which is a significant challenge for building them, due to the tight tolerance and assembly difficulties. In this paper, a cla...

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Main Authors: Ma, Nan, Yu, Jingjun, Dong, Xin, Axinte, Dragos
Format: Article
Language:English
Published: Elsevier 2018
Subjects:
Online Access:https://eprints.nottingham.ac.uk/53503/
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author Ma, Nan
Yu, Jingjun
Dong, Xin
Axinte, Dragos
author_facet Ma, Nan
Yu, Jingjun
Dong, Xin
Axinte, Dragos
author_sort Ma, Nan
building Nottingham Research Data Repository
collection Online Access
description 2-DoF Rotational mechanism is increasingly utilized in a large range of industrial applications. However, the structures of most of the existing mechanisms are very complex, which is a significant challenge for building them, due to the tight tolerance and assembly difficulties. In this paper, a class of 2-DoF tendon driven parallel kinematics mechanisms (TDPKM) are introduced, which can be structured with low manufacturing and assembly difficulties and is able to actively adjust the system stiffness. Since the unique class of mechanisms is developed, the kinematic model is established to derive the stiffness model, which considers the tendon, structural and central joint stiffness. Finally, a set of experiments of the deviation measurement under different payloads within the workspace are implemented and compared with the theoretical calculations presented in this paper. The overall deviation error between the experimental test and theoretical calculation are between 0.9% and 4.7% in the whole workspace.
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spelling nottingham-535032019-08-18T04:30:15Z https://eprints.nottingham.ac.uk/53503/ Design and stiffness analysis of a class of 2-DoF tendon driven parallel kinematics mechanism Ma, Nan Yu, Jingjun Dong, Xin Axinte, Dragos 2-DoF Rotational mechanism is increasingly utilized in a large range of industrial applications. However, the structures of most of the existing mechanisms are very complex, which is a significant challenge for building them, due to the tight tolerance and assembly difficulties. In this paper, a class of 2-DoF tendon driven parallel kinematics mechanisms (TDPKM) are introduced, which can be structured with low manufacturing and assembly difficulties and is able to actively adjust the system stiffness. Since the unique class of mechanisms is developed, the kinematic model is established to derive the stiffness model, which considers the tendon, structural and central joint stiffness. Finally, a set of experiments of the deviation measurement under different payloads within the workspace are implemented and compared with the theoretical calculations presented in this paper. The overall deviation error between the experimental test and theoretical calculation are between 0.9% and 4.7% in the whole workspace. Elsevier 2018-11-30 Article PeerReviewed application/pdf en https://eprints.nottingham.ac.uk/53503/1/Design%20and%20Stiffness%20analysis%20of%20a%20class%20of%202-DoF%20tendon%20driven%20parallel.._.pdf Ma, Nan, Yu, Jingjun, Dong, Xin and Axinte, Dragos (2018) Design and stiffness analysis of a class of 2-DoF tendon driven parallel kinematics mechanism. Mechanism and Machine Theory, 129 . pp. 202-217. ISSN 1873-3999 Tendon-driven; Parallel kinematics mechanism; Stiffness model; Deviation https://www.sciencedirect.com/science/article/pii/S0094114X18300338?via%3Dihub doi:10.1016/j.mechmachtheory.2018.07.023 doi:10.1016/j.mechmachtheory.2018.07.023
spellingShingle Tendon-driven; Parallel kinematics mechanism; Stiffness model; Deviation
Ma, Nan
Yu, Jingjun
Dong, Xin
Axinte, Dragos
Design and stiffness analysis of a class of 2-DoF tendon driven parallel kinematics mechanism
title Design and stiffness analysis of a class of 2-DoF tendon driven parallel kinematics mechanism
title_full Design and stiffness analysis of a class of 2-DoF tendon driven parallel kinematics mechanism
title_fullStr Design and stiffness analysis of a class of 2-DoF tendon driven parallel kinematics mechanism
title_full_unstemmed Design and stiffness analysis of a class of 2-DoF tendon driven parallel kinematics mechanism
title_short Design and stiffness analysis of a class of 2-DoF tendon driven parallel kinematics mechanism
title_sort design and stiffness analysis of a class of 2-dof tendon driven parallel kinematics mechanism
topic Tendon-driven; Parallel kinematics mechanism; Stiffness model; Deviation
url https://eprints.nottingham.ac.uk/53503/
https://eprints.nottingham.ac.uk/53503/
https://eprints.nottingham.ac.uk/53503/