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인간의 보행 및 미끄러짐 특성에 기반한 끌기형 미끄러짐 저항 측정 조건
박재석 ( Jae Suk Park ),권혁면 ( Hyuk Myun Kwon ),오환섭 ( Whan Sup Oh ) 한국안전학회(구 한국산업안전학회) 2012 한국안전학회지 Vol.27 No.5
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/s2, contact time be less than 0.1sec, and contact pressure be within 350~400kPa.