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Measurement of the Hand Transmitted Vibration of the Human Hand Arm System During Operation of a Hand Tractor
Published on: June 16, 2021
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Identification of effective engineering methods for controlling handheld workpiece vibration in grinding processes.
Ren G Dong1, Daniel E Welcome1, Xueyan S Xu1
1Physical Effects Research Branch, Health Effects Laboratory Division National Institute for Occupational Safety and Health, Morgantown, WV, 26505, USA.
International Journal of Industrial Ergonomics
|September 23, 2021
Summary
This study models handheld workpiece vibration during grinding to identify effective engineering controls. Combining methods can reduce worker exposure to hand-arm vibration syndrome risks.
Area of Science:
- Occupational Health and Safety
- Mechanical Engineering
- Ergonomics
Background:
- Hand-arm vibration syndrome (HAVS) is a significant risk for workers in grinding operations.
- Effective engineering controls for handheld workpiece vibration are crucial but not well-established.
Purpose of the Study:
- To develop and evaluate a methodology for analyzing engineering controls for handheld workpiece vibration.
- To identify effective methods for reducing worker exposure to vibration during grinding.
Main Methods:
- Developed a comprehensive model of the grinding machine-workpiece-hand-arm system.
- Simulated workpiece vibration responses in the 6.3-1600 Hz frequency range.
- Validated the methodology with experimental data.
Main Results:
- The developed methodology is suitable for analyzing and evaluating vibration control strategies.
- Workpiece vibration is influenced by direct machine transmission and indirect transmission pathways.
- Combined engineering interventions show potential for significant vibration reduction.
Conclusions:
- The study provides a validated methodology for assessing vibration control in grinding.
- Findings offer guidance for selecting and developing technologies to mitigate HAVS risks.
- Effective control of handheld workpiece vibration is achievable through combined engineering approaches.
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