Biodynamic Response of Human Fingers in a Power Grip Subjected to a Random Vibration

Author:

Dong R. G.1,Welcome D. E.1,McDowell T. W.1,Wu J. Z.1

Affiliation:

1. Engineering & Control Technology Branch, National Institute for Occupational Safety and Health, 1095 Willowdale Road, Morgantown, West Virginia 26505, USA

Abstract

Background. Knowledge of the biodynamic response (BR) of the human hand-arm system is an important part of the foundation for the measurement and assessment of hand-transmitted vibration exposure. This study investigated the BR of human fingers in a power grip subjected to a random vibration. Method. Ten male subjects were used in the experiment. Each subject applied three coupling actions to a simulated tool handle at three different finger grip force levels. Results and Conclusions. The BR is practically independent of the hand coupling actions for frequencies at or above 100 Hz. Above 50 Hz, the BR is correlated to finger and hand sizes. Increasing the finger coupling force significantly increases the BR. Therefore, hand forces should be measured and used when assessing hand-transmitted vibration exposure. The results also show that under a constant-velocity vibration, the finger vibration power absorption at frequencies above 200 Hz is approximately twice that at frequencies below 100 Hz. This suggests that the frequency weighting specified in the current ISO 5349-1 (2001) may underestimate the high frequency effect on vibration-induced finger disorders.

Publisher

ASME International

Subject

Physiology (medical),Biomedical Engineering

Reference36 articles.

1. ISO 10068, 1998: Mechanical Vibration and Shock—Free, Mechanical Impedance of the Human Hand-Arm System at the Driving Point. International Organization for Standardization, Geneva, Switzerland.

2. Cundiff, J. S. , 1976, “Energy Dissipation in Human Hand-Arm Exposed to Random Vibration,” J. Acoust. Soc. Am., 59, pp. 212–214.

3. Lidstro¨m, I. M., 1977, “Vibration Injury in Rock Drillers, Chiselers, and Grinders. Some Views on the Relationship Between the Quantity of Energy Absorbed and the Risk of Occurrence of Vibration Injury,” Proceedings of the International Conference on Hand-Arm Vibration, Cincinnati, OH, pp. 77–83.

4. Pelmear, P. L., and Wasserman, D. E., 1998, Hand-Arm Vibration—a Comprehensive Guide for Occupational Health Professionals. OEM Press, Beverly Farms, MA.

5. Gemne, G., and Taylor, W., 1983, “Foreword: Hand-Arm Vibration and the Central Autonomic Nervous System,” Journal of Low Frequency Noise and Vibration, Special volume, pp. 1–12.

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3