Health Effects Laboratory Division, National Institute for Occupational Safety and Health (NIOSH), Morgantown, WV, 26505, USA.
Health Effects Laboratory Division, National Institute for Occupational Safety and Health (NIOSH), Morgantown, WV, 26505, USA.
Appl Ergon. 2021 Sep;95:103454. doi: 10.1016/j.apergo.2021.103454. Epub 2021 May 12.
Prolonged and intensive vibration exposures during the grinding of handheld workpieces may cause hand-arm vibration syndrome. The objectives of this study are to develop an on-the-hand method for evaluating vibration-reducing (VR) gloves, and to determine whether VR gloves can significantly reduce the vibration exposures. A worker holding and pressing a typical workpiece (golf club head) against a grinding wheel or belt in order to shape the workpiece was simulated, and the input vibration and those on the workpiece and hand-arm system were measured. Ten human subjects participated in the experiment. The results demonstrate that VR gloves significantly reduced the vibrations at the palm, hand dorsum, and wrist. The grinding interface condition and hand feed force did not substantially affect glove effectiveness. The use of gloves slightly increased the workpiece resonant response, but the resonant response did not significantly affect glove effectiveness. This study concluded that the use of VR gloves can help control vibration exposures of workers performing grinding of handheld workpieces.
在手持工件的磨削过程中，如果长时间、高强度地接触振动，可能会引发手臂振动综合征。本研究旨在开发一种针对手部的评估减振手套的方法，并确定减振手套是否能显著降低振动暴露水平。研究模拟了工人握持并按压典型工件（高尔夫球头），使其与砂轮或砂带接触以进行加工的过程，测量了输入振动以及工件和手臂系统的振动。共有 10 名受试者参与了实验。结果表明，减振手套显著降低了手掌、手背和手腕处的振动。磨削界面条件和手部进给力对手套的有效性没有显著影响。使用手套会略微增加工件的共振响应，但共振响应对手套的有效性没有显著影响。本研究得出结论，使用减振手套有助于控制从事手持工件磨削作业的工人的振动暴露水平。
