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2020 | OriginalPaper | Chapter

Application of RULA to Research the Ergonomics Risk of Hand-Held Grinding Operation

Authors : Yanqiu Sun, Zhenlong Lu, Jianwu Chen, Bin Yang, Weijiang Liu, Zidai Xia

Published in: Man-Machine-Environment System Engineering

Publisher: Springer Singapore

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Abstract

Objective—To study the risk of work-related musculoskeletal disorders (WMSDs) of four working positions of hand-held grinding in the mechanical manufacturing industry. Methods—Application of rapid upper limb assessment (RULA), the bad postures of arm and wrist, neck, trunk and leg are scored, respectively; the total score is obtained by combining with the corresponding muscle use score and force/load score, then assess the risk grade according to the total score. Results—The bad posture of upper arm, wrist, neck and trunk is more obvious; the lower arm is followed; the bad posture of legs is not obvious; muscle use and force/load are not obvious. Conclusion—The results show that there are middle and high grades WMSDs ergonomic risks in the working process of four kinds of hand-held grinding postures, which need further study and take corresponding ergonomic improvement measures.

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Metadata
Title
Application of RULA to Research the Ergonomics Risk of Hand-Held Grinding Operation
Authors
Yanqiu Sun
Zhenlong Lu
Jianwu Chen
Bin Yang
Weijiang Liu
Zidai Xia
Copyright Year
2020
Publisher
Springer Singapore
DOI
https://doi.org/10.1007/978-981-15-6978-4_95