Detail publikace
Vliv povrchových nerovností na elastohydrodynamické a smíšené mazání
VAVERKA, M. ZAPLETAL, L. ŠAMÁNEK, O. VRBKA, M.
Český název
Vliv povrchových nerovností na elastohydrodynamické a smíšené mazání
Anglický název
Influence of Surface Dents on Elastohydrodynamic and Mixed Lubrication
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
en
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.
Český abstrakt
Článek se zabývá vlivem mikrovtisků a jejich textur, lae také mikronerovností na tloušťku mazacího filmu, kontaktní tlak, kontaktní únavu.
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 česky
EHD, elastohydrodynamické mazání, smíšené mazání
Klíčová slova anglicky
Elastohydrodynamic lubrication, EHL, surfaces, roughness, contact pressure, asperities, dents, contact fatigue
Rok RIV
2011
Vydáno
09.05.2011
Nakladatel
IT ASCR
Místo
Brno
ISBN
978-80-87012-33-8
Kniha
Engineering Mechanics 2011
Číslo edice
1
Strany od–do
643–646
Počet stran
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",
month="May",
pages="643--646",
publisher="IT ASCR",
address="Brno",
isbn="978-80-87012-33-8"
}