Enhancing the parameters of starved EHL point conjunctions by artificially induced replenishment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F13%3APU104721" target="_blank" >RIV/00216305:26210/13:PU104721 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.triboint.2013.05.003" target="_blank" >http://dx.doi.org/10.1016/j.triboint.2013.05.003</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.triboint.2013.05.003" target="_blank" >10.1016/j.triboint.2013.05.003</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Enhancing the parameters of starved EHL point conjunctions by artificially induced replenishment

Popis výsledku v původním jazyce

The authors present in this paper a mechanism for enhancing the replenishment in EHL point contacts under extreme starvation. The mechanism of replenishment depends on channeling the available lubricant towards the centerline of the overrolled track by using a flexible slider (scraper) with a micro-slot concentric with the track. The slider accumulates the scraped lubricant to be hydrodynamically entrained through the micro-slot resulting in enriching the depleted track with fresh lubricant. The efficiency of induced replenishment is assessed by measuring the coefficient of friction (COF) and the film thickness over time in a ball-on-disc device. The results show a significant reduction of friction about 31% for oil lubrication and about 25% for greaselubrication after introducing the mechanism of artificially induced replenishment. On the other hand, the central film thickness has been doubled many times for oil and grease lubrication. The optical interferometric images show that the

Název v anglickém jazyce

Enhancing the parameters of starved EHL point conjunctions by artificially induced replenishment

Popis výsledku anglicky

The authors present in this paper a mechanism for enhancing the replenishment in EHL point contacts under extreme starvation. The mechanism of replenishment depends on channeling the available lubricant towards the centerline of the overrolled track by using a flexible slider (scraper) with a micro-slot concentric with the track. The slider accumulates the scraped lubricant to be hydrodynamically entrained through the micro-slot resulting in enriching the depleted track with fresh lubricant. The efficiency of induced replenishment is assessed by measuring the coefficient of friction (COF) and the film thickness over time in a ball-on-disc device. The results show a significant reduction of friction about 31% for oil lubrication and about 25% for greaselubrication after introducing the mechanism of artificially induced replenishment. On the other hand, the central film thickness has been doubled many times for oil and grease lubrication. The optical interferometric images show that the

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JR - Ostatní strojírenství

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Tribology International

ISSN

0301-679X

e-ISSN

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Svazek periodika

66

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

134-142

Kód UT WoS článku

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EID výsledku v databázi Scopus

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