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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Acknowledgements
This work was supported by the National Key R&D Program of China (2016YFC0801700), the basic research funding of China Academy of Safety Science and Technology (2019JBKY04, 2019JBKY11, 2017JBKY02).
Compliance with Ethical Standards
The study was approved by the Logistics Department for the Civilian Ethics Committee of China Academy of Safety Science and Technology.
All subjects who participated in the experiment were provided with and signed an informed consent form.
All relevant ethical safeguards have been met with regard to subject protection.
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Sun, Y., Lu, Z., Chen, J., Yang, B., Liu, W., Xia, Z. (2020). Application of RULA to Research the Ergonomics Risk of Hand-Held Grinding Operation. In: Long, S., Dhillon, B.S. (eds) Man-Machine-Environment System Engineering. MMESE 2020. Lecture Notes in Electrical Engineering, vol 645. Springer, Singapore. https://doi.org/10.1007/978-981-15-6978-4_95
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DOI: https://doi.org/10.1007/978-981-15-6978-4_95
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