Influence of Surface Dents on Elastohydrodynamic and Mixed Lubrication

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F11%3APU92561" target="_blank" >RIV/00216305:26210/11:PU92561 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Influence of Surface Dents on Elastohydrodynamic and Mixed Lubrication
Original language 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 layoutof microdents which can have positive effect on lubrication and rolling contact fatigue life.
Czech name
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Czech description
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Project
<a href="/en/project/GP101%2F09%2FP427" target="_blank" >GP101/09/P427: Influence of surface asperities and defects on distribution of contact pressure and lubricant film thickness within contact of machine parts</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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