Abnormal lubricant aggregation on roughness features in a rolling–sliding elastohydrodynamic contact

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F16%3APU123292" target="_blank" >RIV/00216305:26210/16:PU123292 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0301679X15004430" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0301679X15004430</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.triboint.2015.09.041" target="_blank" >10.1016/j.triboint.2015.09.041</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Abnormal lubricant aggregation on roughness features in a rolling–sliding elastohydrodynamic contact

Popis výsledku v původním jazyce

Any practical surface has some roughness which tends to decrease film thickness in concentrated contacts and increase the risk of surface failures. Surface roughness is deformed but roughness also influences the lubrication process. Therefore, it is important to understand these constrains, to predict a real performance of rough surfaces. It was already reported that roughness tends to flatten inside the contact under rolling–sliding conditions. However, this paper presents experiments showing an abnormal effect inside point contact when the additional lubricant is aggregated on the roughness feature (ridge). Enhanced roughness deformation has a protecting function against direct asperities contacts. The relationship to lubricant speed changes inside the contact, a role of thermal effect and possibility of phase transitions are discussed.

Název v anglickém jazyce

Abnormal lubricant aggregation on roughness features in a rolling–sliding elastohydrodynamic contact

Popis výsledku anglicky

Any practical surface has some roughness which tends to decrease film thickness in concentrated contacts and increase the risk of surface failures. Surface roughness is deformed but roughness also influences the lubrication process. Therefore, it is important to understand these constrains, to predict a real performance of rough surfaces. It was already reported that roughness tends to flatten inside the contact under rolling–sliding conditions. However, this paper presents experiments showing an abnormal effect inside point contact when the additional lubricant is aggregated on the roughness feature (ridge). Enhanced roughness deformation has a protecting function against direct asperities contacts. The relationship to lubricant speed changes inside the contact, a role of thermal effect and possibility of phase transitions are discussed.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

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

2016

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

1879-2464

Svazek periodika

94

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

6

Strana od-do

346-351

Kód UT WoS článku

000367757000040

EID výsledku v databázi Scopus

2-s2.0-84944321043