Reducing the friction of lubricated nonconformal point contacts by transverse shallow micro-grooves

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F15%3APU111742" target="_blank" >RIV/00216305:26210/15:PU111742 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1177/1350650114543317" target="_blank" >http://dx.doi.org/10.1177/1350650114543317</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1177/1350650114543317" target="_blank" >10.1177/1350650114543317</a>

Result language

angličtina

Original language name

Reducing the friction of lubricated nonconformal point contacts by transverse shallow micro-grooves

Original language 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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20301 - Mechanical engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2015

Confidentiality

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

Name of the periodical

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY

ISSN

1350-6501

e-ISSN

2041-305X

Volume of the periodical

229

Issue of the periodical within the volume

4

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

420-428

UT code for WoS article

000352069600009

EID of the result in the Scopus database

2-s2.0-84925438523