Shoulder loading while performing automotive parts assembly tasks: A field study
Shoulder loading while performing automotive parts assembly tasks: A field study
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执行汽车零部件装配任务时的肩部负载：现场研究
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
J. Callaghan
中科院分区：
文献类型：
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作者：
A. J. McClellan;W. Albert;S. Fischer;F. A. Seaman;J. Callaghan
本研究的目的是完成一系列汽车零部件装配作业的深入任务分析，并量化工人承受的机械肩部负载范围。从汽车零部件装配厂内选出了 9 个工作岗位，26 名参与者（12 名男性，14 名女性）在执行常规装配线工作时被拍摄。工作人员大部分时间都保持肩部中立姿势，大约 1/3 的时间处于轻微的肩部屈曲或外展姿势。累积肩部屈曲力矩范围为 76-160 kNm*s，累积肩部外展力矩范围为 42-119 kNm*s。峰值肩部屈曲力矩范围为 26-124 Nm，峰值肩部外展力矩范围为 30-93 Nm。分析显示，工作之间以及完成同一工作的工人之间的肩部负荷存在很大差异。这项研究证明了测量每项工作的各种姿势和机械要求的重要性，以充分解决可能影响伤害发展的工作的各个方面。这是第一项记录汽车零部件装配工作期间整个班次累积肩力矩的研究。这种定量评估可以深入了解工人当前正在经历的负荷范围，并展示完成同一任务的工人之间的差异。
The purpose of this study was to complete in depth task analyses for a series of automobile parts assembly jobs and quantify the range of mechanical shoulder loading sustained by the workers. Nine jobs were selected from within an automobile parts assembly plant and 26 participants (12 males, 14 females) were filmed while they performed regular assembly line duties. Workers spent the majority of their time in neutral shoulder postures, and about 1/3 of the shift in mild shoulder flexion or abduction. Cumulative shoulder flexion moments ranged from 76-160 kNm*s while cumulative shoulder abduction moments ranged from 42-119 kNm*s. Peak shoulder flexion moments ranged from 26-124 Nm and peak shoulder abduction moments ranged from 30-93 Nm. The analysis revealed a wide range of shoulder loading between jobs, and workers completing the same job. This study demonstrates the importance of measuring a variety of postural and mechanical demands for every job to adequately address all aspects of the work that might influence the development of injury. This is the first study to document entire shift cumulative shoulder moments during automotive parts assembly work. This quantitative assessment provides insight into the range of loading that workers are currently experiencing, and demonstrates the variability between workers completing the same task.