Non-Newtonian thermal elastohydrodynamic lubrication analysis of perfluoropolyether fluids with high density

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F13%3APU108584" target="_blank" >RIV/00216305:26210/13:PU108584 - isvavai.cz</a>

Výsledek na webu

<a href="http://toc.proceedings.com/20040webtoc.pdf" target="_blank" >http://toc.proceedings.com/20040webtoc.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Non-Newtonian thermal elastohydrodynamic lubrication analysis of perfluoropolyether fluids with high density

Popis výsledku v původním jazyce

Perfluoropolyether (PFPE) fluids with high density are the liquid lubricating oils which possess outstanding thermal stability and extremely lower vapor pressure. Owing to such excellent physical properties, these fluids have been adequately employed formany satellite equipments as lubricants in vacuum environments. In regard to the PFPE fluids, the rheological properties in elastohydrodynamic lubrication (EHL) and the rolling contact fatigue life of ball bearings have been investigated. In the presentinvestigation, a non-Newtonian thermal EHL analysis was performed under the lubricating conditions with the PFPE fluids. The PFPE fluids are Fomblin, Demnum and Krytox. In the numerical analysis, a point contact which was constructed by a pair of steelball and glass disk was simulated. The solid-liquid phase distribution in the fluid film was estimated from the local temperature and the phase transition temperature. In addition, when the maximum Hertzian pressure and the entrainment ve

Název v anglickém jazyce

Non-Newtonian thermal elastohydrodynamic lubrication analysis of perfluoropolyether fluids with high density

Popis výsledku anglicky

Perfluoropolyether (PFPE) fluids with high density are the liquid lubricating oils which possess outstanding thermal stability and extremely lower vapor pressure. Owing to such excellent physical properties, these fluids have been adequately employed formany satellite equipments as lubricants in vacuum environments. In regard to the PFPE fluids, the rheological properties in elastohydrodynamic lubrication (EHL) and the rolling contact fatigue life of ball bearings have been investigated. In the presentinvestigation, a non-Newtonian thermal EHL analysis was performed under the lubricating conditions with the PFPE fluids. The PFPE fluids are Fomblin, Demnum and Krytox. In the numerical analysis, a point contact which was constructed by a pair of steelball and glass disk was simulated. The solid-liquid phase distribution in the fluid film was estimated from the local temperature and the phase transition temperature. In addition, when the maximum Hertzian pressure and the entrainment ve

Druh

D - Stať ve sborníku

CEP obor

JR - Ostatní strojírenství

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Society of Tribologists & Lubrication Engineers Annual Meeting & Exhibition 2013 / Proceedings of a meeting held 5-9 May 2013, Detroit, Michigan, USA.

ISBN

978-1-62993-289-7

ISSN

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e-ISSN

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Počet stran výsledku

3

Strana od-do

169-171

Název nakladatele

Society of Tribologists and Lubrication Engineers

Místo vydání

Detroit

Místo konání akce

Detroit, Michigan, USA.

Datum konání akce

5. 5. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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