Improving the kinematic accuracy of a collaborative continuum robot by using flexure-hinges

Within various unstructured industrial environments, there is often the requirement to conduct remote engineering tasks, such as sampling the structure for analysis prior to decommissioning. Most existing tools are simply not dexterous enough to fulfil this task, and thus new technology is required....

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Main Authors: N. Ma, D. Cheneler, S.D. Monk
Format: Article
Language:English
Published: Elsevier 2024-02-01
Series:Heliyon
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2405844024021753
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author N. Ma
D. Cheneler
S.D. Monk
author_facet N. Ma
D. Cheneler
S.D. Monk
author_sort N. Ma
collection DOAJ
description Within various unstructured industrial environments, there is often the requirement to conduct remote engineering tasks, such as sampling the structure for analysis prior to decommissioning. Most existing tools are simply not dexterous enough to fulfil this task, and thus new technology is required. We describe here a simple, lightweight, and water-resistant collaborative dual-arm continuum robot system which can aid in this task. To improve the kinematic accuracy of the system, a class of flexible hinges have been combined with a conventional continuum robot configuration. The thickness and width of said flexible hinges can be adjusted to adapt to various tasks. Kinematic and stiffness models have further been developed, incorporating the influence of these flexible hinges. A set of experiments have been conducted to validate the proposed model and demonstrate the advantages of the platform. It was found that the kinematic accuracy of the continuum robot can be improved by a factor of around 10 with the aid of said hinges.
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spelling doaj.art-9b55e558b45449cbb98d2bd2280e33522024-03-09T09:27:21ZengElsevierHeliyon2405-84402024-02-01104e26144Improving the kinematic accuracy of a collaborative continuum robot by using flexure-hingesN. Ma0D. Cheneler1S.D. Monk2Department of Engineering, Lancaster University, Lancaster, United KingdomDepartment of Engineering, Lancaster University, Lancaster, United KingdomCorresponding author.; Department of Engineering, Lancaster University, Lancaster, United KingdomWithin various unstructured industrial environments, there is often the requirement to conduct remote engineering tasks, such as sampling the structure for analysis prior to decommissioning. Most existing tools are simply not dexterous enough to fulfil this task, and thus new technology is required. We describe here a simple, lightweight, and water-resistant collaborative dual-arm continuum robot system which can aid in this task. To improve the kinematic accuracy of the system, a class of flexible hinges have been combined with a conventional continuum robot configuration. The thickness and width of said flexible hinges can be adjusted to adapt to various tasks. Kinematic and stiffness models have further been developed, incorporating the influence of these flexible hinges. A set of experiments have been conducted to validate the proposed model and demonstrate the advantages of the platform. It was found that the kinematic accuracy of the continuum robot can be improved by a factor of around 10 with the aid of said hinges.http://www.sciencedirect.com/science/article/pii/S2405844024021753Continuum robotDual-arm cooperationUnderwater sample retrievalParallel mechanism
spellingShingle N. Ma
D. Cheneler
S.D. Monk
Improving the kinematic accuracy of a collaborative continuum robot by using flexure-hinges
Heliyon
Continuum robot
Dual-arm cooperation
Underwater sample retrieval
Parallel mechanism
title Improving the kinematic accuracy of a collaborative continuum robot by using flexure-hinges
title_full Improving the kinematic accuracy of a collaborative continuum robot by using flexure-hinges
title_fullStr Improving the kinematic accuracy of a collaborative continuum robot by using flexure-hinges
title_full_unstemmed Improving the kinematic accuracy of a collaborative continuum robot by using flexure-hinges
title_short Improving the kinematic accuracy of a collaborative continuum robot by using flexure-hinges
title_sort improving the kinematic accuracy of a collaborative continuum robot by using flexure hinges
topic Continuum robot
Dual-arm cooperation
Underwater sample retrieval
Parallel mechanism
url http://www.sciencedirect.com/science/article/pii/S2405844024021753
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