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Description
  • Machine parts with non-conformal contact surfaces frequently operate in elastohydrodynamic or mixed regime of lubrication. In surroundings of asperities significant changes in lubricant film thickness and also contact pressure occur, which can lead to failure. The article deals with the influence of surface dents on film thickness, contact pressure and rolling contact fatigue. These quantities are important for machine design in terms of failure (pitting and scuffing). Lubricant film thickness is measured by thin film colorimetric interferometry (TCFI) and contact pressure is calculated using inverse elasticity theory enhanced by convolution algorithms. Rolling contact fatigue tests show that it is possible to design surface textures of suitable layout of microdents which can have positive effect on lubrication and rolling contact fatigue life.
  • Machine parts with non-conformal contact surfaces frequently operate in elastohydrodynamic or mixed regime of lubrication. In surroundings of asperities significant changes in lubricant film thickness and also contact pressure occur, which can lead to failure. The article deals with the influence of surface dents on film thickness, contact pressure and rolling contact fatigue. These quantities are important for machine design in terms of failure (pitting and scuffing). Lubricant film thickness is measured by thin film colorimetric interferometry (TCFI) and contact pressure is calculated using inverse elasticity theory enhanced by convolution algorithms. Rolling contact fatigue tests show that it is possible to design surface textures of suitable layout of microdents which can have positive effect on lubrication and rolling contact fatigue life. (en)
Title
  • Influence of Surface Dents on Elastohydrodynamic and Mixed Lubrication
  • Influence of Surface Dents on Elastohydrodynamic and Mixed Lubrication (en)
skos:prefLabel
  • Influence of Surface Dents on Elastohydrodynamic and Mixed Lubrication
  • Influence of Surface Dents on Elastohydrodynamic and Mixed Lubrication (en)
skos:notation
  • RIV/00216305:26210/11:PU92561!RIV13-GA0-26210___
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  • P(GP101/09/P427)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
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  • 204590
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  • RIV/00216305:26210/11:PU92561
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  • Elastohydrodynamic lubrication, EHL, surfaces, roughness, contact pressure, asperities, dents, contact fatigue (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [0CE7A033B199]
http://linked.open...v/mistoKonaniAkce
  • Svratka
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  • Brno
http://linked.open...i/riv/nazevZdroje
  • Engineering Mechanics 2011
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http://linked.open...vavai/riv/projekt
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  • Vrbka, Martin
  • Vaverka, Michal
  • Zapletal, Lukáš
  • Šamánek, Otakar
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http://linked.open.../riv/zahajeniAkce
number of pages
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  • IT ASCR
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  • 978-80-87012-33-8
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  • 26210
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