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http://dx.doi.org/10.14346/JKOSOS.2012.27.5.179

Measurement Criteria for Drag-Sled Type Slip Resistance Tester Based on Human Gait and Slip  

Park, Jae-Suk (Occupational Safety and Health Research Institute, KOSHA)
Kwon, Hyuck-Myun (Occupational Safety and Health Research Institute, KOSHA)
Oh, Whan-Sup (Department of Mechanical Engineering, Kyunghee University)
Publication Information
Journal of the Korean Society of Safety / v.27, no.5, 2012 , pp. 179-184 More about this Journal
Abstract
This study was performed to find out the measurement criteria of slip resistance from analysis of human gait and slips. Many kinds of slip resistance testers were developed based on mechanical friction testers. But, there are, as yet, no unambiguous slip resistance measurement methodologies and generally accepted safety criteria or safety thresholds for estimating slipping hazard exposures. Also, there are variety of measuring conditions between those testers. The measurement criteria should be tested within the range of human slipping conditions observed in biomechanical studies. It's results should clearly consider whether the devices reflect the human slipping conditions. In this study a dragsled type friction tester, which was constructed in accordance with ISO 15133 basically, was used. Test conditions were set in order to determine the range of measurement criteria. It is shown that drag velocity should be more than 1 m/s, acceleration be more than 10 $m/s^2$, contact time be less than 0.1sec, and contact pressure be within 350~400 kPa.
Keywords
slip risk; slip resistance; coefficient of friction; slip; measurement criteria;
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