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Statements

Subject Item
n2:RIV%2F00216305%3A26210%2F14%3APU111742%21RIV15-MSM-26210___
rdf:type
skos:Concept n17:Vysledek
dcterms:description
This study focuses on the effects of transverse shallow micro-grooves on the film thickness and friction of nonconformal contacts under relative motion. Experiments were conducted using a ball-on-disc tribometer equipped with high speed camera and torque sensor. The lubricated contact between the steel ball and glass disc represents a nonconformal point contact with elastohydrodynamic lubrication. The measurements of the film thickness were carried out using the optical interferometry technique while the friction was measured by a torque sensor on the ball shaft. The results reveal that the rubbing surfaces with transverse shallow micro-grooves with a length less than the diameter of the Hertzian contact have an improved tribological performance in comparison with smooth surfaces in the elastohydrodynamic lubrication regime. Indeed, a significant enhancement of film thickness has been observed using such design of microgrooves. This study focuses on the effects of transverse shallow micro-grooves on the film thickness and friction of nonconformal contacts under relative motion. Experiments were conducted using a ball-on-disc tribometer equipped with high speed camera and torque sensor. The lubricated contact between the steel ball and glass disc represents a nonconformal point contact with elastohydrodynamic lubrication. The measurements of the film thickness were carried out using the optical interferometry technique while the friction was measured by a torque sensor on the ball shaft. The results reveal that the rubbing surfaces with transverse shallow micro-grooves with a length less than the diameter of the Hertzian contact have an improved tribological performance in comparison with smooth surfaces in the elastohydrodynamic lubrication regime. Indeed, a significant enhancement of film thickness has been observed using such design of microgrooves.
dcterms:title
Reducing the friction of lubricated nonconformal point contacts by transverse shallow micro-grooves Reducing the friction of lubricated nonconformal point contacts by transverse shallow micro-grooves
skos:prefLabel
Reducing the friction of lubricated nonconformal point contacts by transverse shallow micro-grooves Reducing the friction of lubricated nonconformal point contacts by transverse shallow micro-grooves
skos:notation
RIV/00216305:26210/14:PU111742!RIV15-MSM-26210___
n3:aktivita
n14:P
n3:aktivity
P(GAP101/11/1115), P(LO1202)
n3:cisloPeriodika
3
n3:dodaniDat
n12:2015
n3:domaciTvurceVysledku
n4:8892822 Ali, Fadi n4:7016514
n3:druhVysledku
n13:J
n3:duvernostUdaju
n11:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
41710
n3:idVysledku
RIV/00216305:26210/14:PU111742
n3:jazykVysledku
n15:eng
n3:klicovaSlova
Elastohydrodynamic lubrication, film thickness, friction, surface texturing, micro-grooves
n3:klicoveSlovo
n8:surface%20texturing n8:film%20thickness n8:friction n8:Elastohydrodynamic%20lubrication n8:micro-grooves
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[EE79E303D2B8]
n3:nazevZdroje
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY
n3:obor
n10:JR
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:projekt
n6:GAP101%2F11%2F1115 n6:LO1202
n3:rokUplatneniVysledku
n12:2014
n3:svazekPeriodika
229
n3:tvurceVysledku
Hartl, Martin Ali, Fadi Křupka, Ivan
s:issn
1350-6501
s:numberOfPages
9
n9:doi
10.1177/1350650114543317
n19:organizacniJednotka
26210