Detail publikačního výsledku

Influence of Surface Dents on Elastohydrodynamic and Mixed Lubrication

VAVERKA, M.; ZAPLETAL, L.; ŠAMÁNEK, O.; VRBKA, M.

Originální název

Influence of Surface Dents on Elastohydrodynamic and Mixed Lubrication

Anglický název

Influence of Surface Dents on Elastohydrodynamic and Mixed Lubrication

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

Elastohydrodynamic lubrication, EHL, surfaces, roughness, contact pressure, asperities, dents, contact fatigue

Klíčová slova v angličtině

Elastohydrodynamic lubrication, EHL, surfaces, roughness, contact pressure, asperities, dents, contact fatigue

Autoři

VAVERKA, M.; ZAPLETAL, L.; ŠAMÁNEK, O.; VRBKA, M.

Rok RIV

2012

Vydáno

09.05.2011

Nakladatel

IT ASCR

Místo

Brno

ISBN

978-80-87012-33-8

Kniha

Engineering Mechanics 2011

Edice

17th international Conference

Strany od

643

Strany do

646

Strany počet

4

BibTex

@inproceedings{BUT36667,
  author="Michal {Vaverka} and Lukáš {Zapletal} and Otakar {Šamánek} and Martin {Vrbka}",
  title="Influence of Surface Dents on Elastohydrodynamic and Mixed Lubrication",
  booktitle="Engineering Mechanics 2011",
  year="2011",
  series="17th international Conference",
  number="1",
  pages="643--646",
  publisher="IT ASCR",
  address="Brno",
  isbn="978-80-87012-33-8"
}