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  • Lubricant base oils are often blends of different molecular weight cuts to arrive at a specified ambient pressure viscosity and, to improve the temperature-viscosity behavior or to simply increase the viscosity, viscosity-modifying polymer additives are often added to the base oil. This paper investigates the effect of mixture rheology on EHL film thickness using EHL contact measurements and a full numerical analysis for three synthetic lubricants including two single-component lubricants PAO650, and PAO100 and a mixture of these. The pressure and shear dependences of the viscosity of these lubricants were measured with high-pressure viscometers; viscosities were not adjusted to fit experiment. The point contact film thicknesses for these lubricants in pure rolling were measured using a thin-film colorimetric interferometry apparatus. Numerical simulations based on the measured rheology show very good agreement with the measurements of film thickness while the Newtonian prediction is up to twice t
  • Lubricant base oils are often blends of different molecular weight cuts to arrive at a specified ambient pressure viscosity and, to improve the temperature-viscosity behavior or to simply increase the viscosity, viscosity-modifying polymer additives are often added to the base oil. This paper investigates the effect of mixture rheology on EHL film thickness using EHL contact measurements and a full numerical analysis for three synthetic lubricants including two single-component lubricants PAO650, and PAO100 and a mixture of these. The pressure and shear dependences of the viscosity of these lubricants were measured with high-pressure viscometers; viscosities were not adjusted to fit experiment. The point contact film thicknesses for these lubricants in pure rolling were measured using a thin-film colorimetric interferometry apparatus. Numerical simulations based on the measured rheology show very good agreement with the measurements of film thickness while the Newtonian prediction is up to twice t (en)
Title
  • The Shear-Thinning Elastohydrodynamic Film Thickness of a Two-Component Mixture
  • The Shear-Thinning Elastohydrodynamic Film Thickness of a Two-Component Mixture (en)
skos:prefLabel
  • The Shear-Thinning Elastohydrodynamic Film Thickness of a Two-Component Mixture
  • The Shear-Thinning Elastohydrodynamic Film Thickness of a Two-Component Mixture (en)
skos:notation
  • RIV/00216305:26210/08:PU69926!RIV10-MSM-26210___
http://linked.open...avai/riv/aktivita
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  • P(ME 905)
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  • 2
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  • 394619
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  • RIV/00216305:26210/08:PU69926
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  • EHL, elastohydrodynamics, rheology, film thickness, shear-thinning, non-Newtonian, viscosity (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [632DB336499C]
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  • ASME Transaction, Journal of Tribology
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http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 130
http://linked.open...iv/tvurceVysledku
  • Hartl, Martin
  • Křupka, Ivan
issn
  • 0742-4787
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http://localhost/t...ganizacniJednotka
  • 26210
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