Comparison of Interfacial Fluid Pressures Generated Across Common Shoe-Floor Friction Testing Apparatuses
Independent thesis Advanced level (degree of Master (Two Years))Student thesis
Falls from slips are the leading causes of occupational injuries. A novel technique is proposed in order to evaluate the tribological behavior of the slip-testing devices by comparing fluid pressures. The effect of the surface roughness, dynamic viscosity and sliding speed on fluid pressure created by hydrodynamic lubrication between footwear and floor is investigated. The experimental study showed that Portable Slip-Simulator better mimicked the fluid pressures during slipping and had a better repeatability in fluid pressure measurements compared to Brungarber Mark II and English XL. One explanation for this finding may be that its normal force, sliding speeds and contact duration closely resemble an actual slip. Fluid pressure and coefficient of friction (COF) were affected by the surface roughness, dynamic viscosity and sliding speed. Fluid pressure increased when the dynamic viscosity and sliding speed increased whereas COF decreased.
Place, publisher, year, edition, pages
2013. , 58 p.
Slips, Falls, Slipmeter, Fluid pressure measurement, Hydrodynamic lubrication, Tribological fidelity.
IdentifiersURN: urn:nbn:se:bth-5085Local ID: oai:bth.se:arkivex43D69BC7679A10ABC1257C2A00672972OAI: oai:DiVA.org:bth-5085DiVA: diva2:832447
Beschorner, Dr. Kurt E.