Development of a telescopic boom lift for nursing care: design and optimization using a multibody dynamics approach

Recently, several types of nursing care equipment to aid the lifting and transfer of aged persons have been developed. Especially, rotational boom-type care lifts are used widely because of their simplicity and usefulness. However, such lifts sometimes provide a feeling of uneasiness because during...

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Autores principales:	Makoto IWAMURA, Yoshiko YAMAGUCHI, Ittou TANAKA, Hiroyuki FUJISHIMA
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2017
Materias:	nursing care lift transfer aid system multibody dynamics optimal design telescopic boom Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/de6b998fca5640b48e080d8f4b064e7d
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spelling	oai:doaj.org-article:de6b998fca5640b48e080d8f4b064e7d2021-11-26T07:06:29ZDevelopment of a telescopic boom lift for nursing care: design and optimization using a multibody dynamics approach2187-974510.1299/mej.17-00028https://doaj.org/article/de6b998fca5640b48e080d8f4b064e7d2017-05-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/4/4/4_17-00028/_pdf/-char/enhttps://doaj.org/toc/2187-9745Recently, several types of nursing care equipment to aid the lifting and transfer of aged persons have been developed. Especially, rotational boom-type care lifts are used widely because of their simplicity and usefulness. However, such lifts sometimes provide a feeling of uneasiness because during lift-up, the center of the human body moves backward relative to the position of the heel. Hence, in this paper, we first propose a telescopic boom-type care lift to approximate the trajectory of the lift-up motion of a human standing up naturally. By using a multibody dynamics approach, we show that the proposed mechanism can achieve nearly natural standing-up motion and requires a smaller force for lift-up than that required by the conventional-type lift. Next, we develop a prototype telescopic boom-type care lift and verify experimentally that the proposed lift can reduce mental and physical burden compared with the conventional lift. To compare mental burden, we conduct a sensory evaluation by administering a questionnaire. To compare physical burden, we estimate muscle activation based on users' electromyographic signals. These results show the effectiveness of the proposed telescopic boom-type lift. Finally, we consider the optimal design of the proposed care lift structure. We propose an algorithm to seek optimal design parameters that minimize the error between the tip trajectory of the lift and the human chest trajectory measured using a motion capture system.Makoto IWAMURAYoshiko YAMAGUCHIIttou TANAKAHiroyuki FUJISHIMAThe Japan Society of Mechanical Engineersarticlenursing care lifttransfer aid systemmultibody dynamicsoptimal designtelescopic boomMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 4, Iss 4, Pp 17-00028-17-00028 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	nursing care lift transfer aid system multibody dynamics optimal design telescopic boom Mechanical engineering and machinery TJ1-1570
spellingShingle	nursing care lift transfer aid system multibody dynamics optimal design telescopic boom Mechanical engineering and machinery TJ1-1570 Makoto IWAMURA Yoshiko YAMAGUCHI Ittou TANAKA Hiroyuki FUJISHIMA Development of a telescopic boom lift for nursing care: design and optimization using a multibody dynamics approach
description	Recently, several types of nursing care equipment to aid the lifting and transfer of aged persons have been developed. Especially, rotational boom-type care lifts are used widely because of their simplicity and usefulness. However, such lifts sometimes provide a feeling of uneasiness because during lift-up, the center of the human body moves backward relative to the position of the heel. Hence, in this paper, we first propose a telescopic boom-type care lift to approximate the trajectory of the lift-up motion of a human standing up naturally. By using a multibody dynamics approach, we show that the proposed mechanism can achieve nearly natural standing-up motion and requires a smaller force for lift-up than that required by the conventional-type lift. Next, we develop a prototype telescopic boom-type care lift and verify experimentally that the proposed lift can reduce mental and physical burden compared with the conventional lift. To compare mental burden, we conduct a sensory evaluation by administering a questionnaire. To compare physical burden, we estimate muscle activation based on users' electromyographic signals. These results show the effectiveness of the proposed telescopic boom-type lift. Finally, we consider the optimal design of the proposed care lift structure. We propose an algorithm to seek optimal design parameters that minimize the error between the tip trajectory of the lift and the human chest trajectory measured using a motion capture system.
format	article
author	Makoto IWAMURA Yoshiko YAMAGUCHI Ittou TANAKA Hiroyuki FUJISHIMA
author_facet	Makoto IWAMURA Yoshiko YAMAGUCHI Ittou TANAKA Hiroyuki FUJISHIMA
author_sort	Makoto IWAMURA
title	Development of a telescopic boom lift for nursing care: design and optimization using a multibody dynamics approach
title_short	Development of a telescopic boom lift for nursing care: design and optimization using a multibody dynamics approach
title_full	Development of a telescopic boom lift for nursing care: design and optimization using a multibody dynamics approach
title_fullStr	Development of a telescopic boom lift for nursing care: design and optimization using a multibody dynamics approach
title_full_unstemmed	Development of a telescopic boom lift for nursing care: design and optimization using a multibody dynamics approach
title_sort	development of a telescopic boom lift for nursing care: design and optimization using a multibody dynamics approach
publisher	The Japan Society of Mechanical Engineers
publishDate	2017
url	https://doaj.org/article/de6b998fca5640b48e080d8f4b064e7d
work_keys_str_mv	AT makotoiwamura developmentofatelescopicboomliftfornursingcaredesignandoptimizationusingamultibodydynamicsapproach AT yoshikoyamaguchi developmentofatelescopicboomliftfornursingcaredesignandoptimizationusingamultibodydynamicsapproach AT ittoutanaka developmentofatelescopicboomliftfornursingcaredesignandoptimizationusingamultibodydynamicsapproach AT hiroyukifujishima developmentofatelescopicboomliftfornursingcaredesignandoptimizationusingamultibodydynamicsapproach
_version_	1718409748566507520

Development of a telescopic boom lift for nursing care: design and optimization using a multibody dynamics approach

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