Development of a Shape Memory Alloy (SMA) based assistive hand

In Malaysia, every year approximately 40000 people suffer from stroke and many of them become immobilized as an after effect. Rehabilitation robotics to assist disabled people has drawn significant attention by the researchers recently. This project also aims to contribute to this field. This pap...

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Main Authors:	Ba Hamid , Alala M., Makhdoomi, Mohatashem R., Saleh, Tanveer, Bhuiyan , Moinul
Format:	Article
Language:	English
Published:	Trans Tech Publications, Switzerland 2015
Subjects:	TJ181 Mechanical movements
Online Access:	http://irep.iium.edu.my/43002/ http://irep.iium.edu.my/43002/ http://irep.iium.edu.my/43002/ http://irep.iium.edu.my/43002/1/43002_-_Development_of_a_Shape_Memory_Alloy_%28SMA%29_based_assistive_hand.pdf

id	iium-43002
recordtype	eprints
spelling	iium-430022016-05-20T02:51:40Z http://irep.iium.edu.my/43002/ Development of a Shape Memory Alloy (SMA) based assistive hand Ba Hamid , Alala M. Makhdoomi, Mohatashem R. Saleh, Tanveer Bhuiyan , Moinul TJ181 Mechanical movements In Malaysia, every year approximately 40000 people suffer from stroke and many of them become immobilized as an after effect. Rehabilitation robotics to assist disabled people has drawn significant attention by the researchers recently. This project also aims to contribute to this field. This paper presents a Shape Memory Alloy (SMA) actuated wearable assistive robotic hand for grasping. The proposed design is compact and sufficiently light to be used as an assistive hand. It is a joint less structure, has the potential because the human skeleton and joint replace the robot’s conventional structure. This design has been implemented on index and thumb fingers to enable grasping. Shape memory alloy springs and bias force mechanism are used for purpose of hand’s flexion and extension. This paper describes the mechatronic design of the wearable hand, experimental study of actuation unit and sensory system. Open loop experiments are conducted to understand the hand characterization and grip force provided by index finger. Current, temperature, extension and contraction of shape memory alloy springs are reported. This mechanism requires approximately 2A current for the SMA to actuate which provides maximum of 1.6N of gripping force. Conducted experiments show promising results that encourage further developments. Trans Tech Publications, Switzerland 2015 Article PeerReviewed application/pdf en http://irep.iium.edu.my/43002/1/43002_-_Development_of_a_Shape_Memory_Alloy_%28SMA%29_based_assistive_hand.pdf Ba Hamid , Alala M. and Makhdoomi, Mohatashem R. and Saleh, Tanveer and Bhuiyan , Moinul (2015) Development of a Shape Memory Alloy (SMA) based assistive hand. Advanced Materials Research, 1115. pp. 454-457. ISSN 1022-6680 http://www.ttp.net/978-3-03835-493-2/10.html doi:10.4028/www.scientific.net/AMR.1115.454
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TJ181 Mechanical movements
spellingShingle	TJ181 Mechanical movements Ba Hamid , Alala M. Makhdoomi, Mohatashem R. Saleh, Tanveer Bhuiyan , Moinul Development of a Shape Memory Alloy (SMA) based assistive hand
description	In Malaysia, every year approximately 40000 people suffer from stroke and many of them become immobilized as an after effect. Rehabilitation robotics to assist disabled people has drawn significant attention by the researchers recently. This project also aims to contribute to this field. This paper presents a Shape Memory Alloy (SMA) actuated wearable assistive robotic hand for grasping. The proposed design is compact and sufficiently light to be used as an assistive hand. It is a joint less structure, has the potential because the human skeleton and joint replace the robot’s conventional structure. This design has been implemented on index and thumb fingers to enable grasping. Shape memory alloy springs and bias force mechanism are used for purpose of hand’s flexion and extension. This paper describes the mechatronic design of the wearable hand, experimental study of actuation unit and sensory system. Open loop experiments are conducted to understand the hand characterization and grip force provided by index finger. Current, temperature, extension and contraction of shape memory alloy springs are reported. This mechanism requires approximately 2A current for the SMA to actuate which provides maximum of 1.6N of gripping force. Conducted experiments show promising results that encourage further developments.
format	Article
author	Ba Hamid , Alala M. Makhdoomi, Mohatashem R. Saleh, Tanveer Bhuiyan , Moinul
author_facet	Ba Hamid , Alala M. Makhdoomi, Mohatashem R. Saleh, Tanveer Bhuiyan , Moinul
author_sort	Ba Hamid , Alala M.
title	Development of a Shape Memory Alloy (SMA) based assistive hand
title_short	Development of a Shape Memory Alloy (SMA) based assistive hand
title_full	Development of a Shape Memory Alloy (SMA) based assistive hand
title_fullStr	Development of a Shape Memory Alloy (SMA) based assistive hand
title_full_unstemmed	Development of a Shape Memory Alloy (SMA) based assistive hand
title_sort	development of a shape memory alloy (sma) based assistive hand
publisher	Trans Tech Publications, Switzerland
publishDate	2015
url	http://irep.iium.edu.my/43002/ http://irep.iium.edu.my/43002/ http://irep.iium.edu.my/43002/ http://irep.iium.edu.my/43002/1/43002_-_Development_of_a_Shape_Memory_Alloy_%28SMA%29_based_assistive_hand.pdf
first_indexed	2023-09-18T21:01:16Z
last_indexed	2023-09-18T21:01:16Z
_version_	1777410639118991360

Development of a Shape Memory Alloy (SMA) based assistive hand

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