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Träfflista för sökning "WFRF:(Gao Chuansi) ;pers:(Hirvonen Mikko)"

Sökning: WFRF:(Gao Chuansi) > Hirvonen Mikko

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1.
  • Gao, Chuansi, et al. (författare)
  • Slip resistant properties of footwear on ice
  • 2004
  • Ingår i: Ergonomics. - : Informa UK Limited. - 0014-0139 .- 1366-5847. ; 47:6, s. 710-716
  • Tidskriftsartikel (refereegranskat)abstract
    • Current research on slipperiness of footwear has mainly focused on floors and lubricated floors. Slips and falls on icy and snowy surfaces involve not only outdoor workers, but also pedestrians and the general public; and occur in cold regions and in winter season in many parts of the world. However, in comparison with the size of the problem, research on slips and falls on icy and snowy surfaces has been scarce. The objective of this paper is to explore the slip resistant properties of footwear (soling materials, roughness and hardness) on ice. The coefficients of kinetic friction of four different soling materials (synthetic rubber, nitrile rubber, natural rubber and polyurethane) were measured on ice (-12°C). The outsole roughness and hardness were also measured. Results showed that the polyurethane soling did not perform better than synthetic rubber, nitrile rubber and natural rubber on pure hard ice (-12°C). Soling roughness was positively correlated with the coefficient of kinetic friction. The most slip resistant soling material (polyurethane) on floors and lubricated floors may not provide sufficient slip resistance on ice.
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2.
  • Gao, Chuansi, et al. (författare)
  • The effect of footwear sole abrasion on the coefficient of friction on melting and hard ice
  • 2002
  • Ingår i: Proceedings of the XVI Annual International Occupational Ergonomics and Safety Conference, Toronto, Ontario, Canada, 10-13 June 2002.. - : International Society for Occupational Ergonomics and Safety.
  • Konferensbidrag (refereegranskat)abstract
    • Footwear sole wear by natural use or artificial abrasion either increases or decreases slip resistance on floors or lubricated floors. The objectives of this paper were to study the effect of footwear sole abrasive wear on slip resistance on ice with respect to temperature, and to compare with the slip resistance on lubricated steel plate
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3.
  • Gao, Chuansi, et al. (författare)
  • The effect of footwear sole abrasion on the coefficient of friction on melting and hard ice
  • 2003
  • Ingår i: International Journal of Industrial Ergonomics. - 0169-8141 .- 1872-8219. ; 31:5, s. 323-330
  • Tidskriftsartikel (refereegranskat)abstract
    • Footwear sole wear by natural use or artificial abrasion either increases or decreases slip resistance on floors with and without lubricant. The objectives of this paper were to study the effect of footwear sole abrasive wear on slip resistance on ice with respect to temperature, and to compare the slip resistance of abraded soles on melting and hard ice with that on lubricated steel plate. The kinetic coefficient of friction (COF) of nine pairs of footwear were measured with the stationary step simulator developed at the Finnish Institute of Occupational Health, before and after the new footwear soles were artificially abraded. Two-way factorial ANOVA showed that the abrasion of nine pairs of footwear had no significant effect on COF on melting ice (Mean COF with abrasion=0.056, std=0.0158, COF without abrasion=0.055, std=0.0205, P=0.805). On hard ice, however, the COF of abraded soles measured (mean COF=0.244) was significantly higher than without abrasion (mean COF=0.180,p<0.001), and than abraded soles on lubricated steel (mean=0.137,p<0.001). There is statistical significance between the three types of surfaces (P<0.001). On hard ice, regardless of abrasion, curling footwear with crepe rubber soling showed significantly higher COF (mean=0.343 after abrasion, 0.261 before abrasion) than other types (P<0.001). The results indicate that artificially abraded footwear is more slip resistant than new one for use on hard ice. The abrasion requirement could be specified if developing a new standard to measure COF on ice in the future. Of the footwear measured, the curling footwear with crepe rubber soling performed best in terms of slip resistance property. Therefore, Crepe rubber soling is highly recommended for use on hard ice. Melting ice is much more slippery, in which sole abrasion does not improve slip resistance. Thus, additional measures should be taken to reduce slip and fall risk. Relevance to industrySlipping and falling accidents are common on surfaces covered with snow, ice, melting snow, melting ice or the mixed in winter for outdoor workers and pedestrians. Understanding of the friction at the interface can help footwear industry design slip resistant products, to help outdoor workers choose appropriate protective equipment, and to provide safe work practice for industries involving outdoor work.
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  • Resultat 1-3 av 3
Typ av publikation
tidskriftsartikel (2)
konferensbidrag (1)
Typ av innehåll
refereegranskat (3)
Författare/redaktör
Abeysekera, John (3)
Gao, Chuansi (3)
Aschan, Carita (2)
Grönqvist, Raoul (1)
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Luleå tekniska universitet (3)
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Engelska (3)
Forskningsämne (UKÄ/SCB)
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