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Simulation and Ergonomic Evaluation of Welders’ Standing Posture Using Jack Software

Ergonomics research strives to make workers’ labor more efficient, safer, and more comfortable. Therefore, six digital humans and welding torch model were built and evaluated based on the Jack software in order to improve the ergonomics of welders’ standing postures. Three sets of standing welding a...

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Detalles Bibliográficos
Autores principales: Zhang, Yongbao, Wu, Xiang, Gao, Jingqi, Chen, Jianwu, Xv, Xun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6888345/
https://www.ncbi.nlm.nih.gov/pubmed/31703474
http://dx.doi.org/10.3390/ijerph16224354
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author Zhang, Yongbao
Wu, Xiang
Gao, Jingqi
Chen, Jianwu
Xv, Xun
author_facet Zhang, Yongbao
Wu, Xiang
Gao, Jingqi
Chen, Jianwu
Xv, Xun
author_sort Zhang, Yongbao
collection PubMed
description Ergonomics research strives to make workers’ labor more efficient, safer, and more comfortable. Therefore, six digital humans and welding torch model were built and evaluated based on the Jack software in order to improve the ergonomics of welders’ standing postures. Three sets of standing welding actions were designed: walking, raising arm, and contracting arm. Through the Lower Back Analysis, Ovako Working Posture Analysis, Comfort Assessment, and Rapid Upper Limb Assessment, this paper evaluated the optimum range of the weight of the welding torch, the upper limb posture, and the neck posture of the welder. Firstly, the results show that Chinese welders should not use a welding torch with a weight of more than 6 kg when standing up. Secondly, for adult males in the 5th, 50th, 95th percentile of body size, the best operating distance is 321 mm, 371 mm, and 421 mm, respectively, and the best operating height is 1050 mm, 1100 mm, and 1150 mm, respectively; for females in the same percentiles, the optimal operating distance is 271 mm, 321 mm, and 371 mm, respectively, and the optimal operating height is 1000 mm, 1050 mm, and 1100 mm, respectively. Moreover, the horizontal and vertical rotation angle of the welder’s neck should not exceed 15° and 8.7°. The adjustment strategy not only has a positive effect on improving welders’ operational posture and preventing fatigue and injury to the welder, but it also develops research ideas for promoting safety from the perspective of ergonomics.
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spelling pubmed-68883452019-12-09 Simulation and Ergonomic Evaluation of Welders’ Standing Posture Using Jack Software Zhang, Yongbao Wu, Xiang Gao, Jingqi Chen, Jianwu Xv, Xun Int J Environ Res Public Health Article Ergonomics research strives to make workers’ labor more efficient, safer, and more comfortable. Therefore, six digital humans and welding torch model were built and evaluated based on the Jack software in order to improve the ergonomics of welders’ standing postures. Three sets of standing welding actions were designed: walking, raising arm, and contracting arm. Through the Lower Back Analysis, Ovako Working Posture Analysis, Comfort Assessment, and Rapid Upper Limb Assessment, this paper evaluated the optimum range of the weight of the welding torch, the upper limb posture, and the neck posture of the welder. Firstly, the results show that Chinese welders should not use a welding torch with a weight of more than 6 kg when standing up. Secondly, for adult males in the 5th, 50th, 95th percentile of body size, the best operating distance is 321 mm, 371 mm, and 421 mm, respectively, and the best operating height is 1050 mm, 1100 mm, and 1150 mm, respectively; for females in the same percentiles, the optimal operating distance is 271 mm, 321 mm, and 371 mm, respectively, and the optimal operating height is 1000 mm, 1050 mm, and 1100 mm, respectively. Moreover, the horizontal and vertical rotation angle of the welder’s neck should not exceed 15° and 8.7°. The adjustment strategy not only has a positive effect on improving welders’ operational posture and preventing fatigue and injury to the welder, but it also develops research ideas for promoting safety from the perspective of ergonomics. MDPI 2019-11-07 2019-11 /pmc/articles/PMC6888345/ /pubmed/31703474 http://dx.doi.org/10.3390/ijerph16224354 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhang, Yongbao
Wu, Xiang
Gao, Jingqi
Chen, Jianwu
Xv, Xun
Simulation and Ergonomic Evaluation of Welders’ Standing Posture Using Jack Software
title Simulation and Ergonomic Evaluation of Welders’ Standing Posture Using Jack Software
title_full Simulation and Ergonomic Evaluation of Welders’ Standing Posture Using Jack Software
title_fullStr Simulation and Ergonomic Evaluation of Welders’ Standing Posture Using Jack Software
title_full_unstemmed Simulation and Ergonomic Evaluation of Welders’ Standing Posture Using Jack Software
title_short Simulation and Ergonomic Evaluation of Welders’ Standing Posture Using Jack Software
title_sort simulation and ergonomic evaluation of welders’ standing posture using jack software
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6888345/
https://www.ncbi.nlm.nih.gov/pubmed/31703474
http://dx.doi.org/10.3390/ijerph16224354
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