Analytical Formula for the Ratio of Central to Minimum Film Thickness in a Circular EHL Contact
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F18%3APU129465" target="_blank" >RIV/00216305:26210/18:PU129465 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/2075-4442/6/3/80/htm" target="_blank" >https://www.mdpi.com/2075-4442/6/3/80/htm</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/lubricants6030080" target="_blank" >10.3390/lubricants6030080</a>
Alternative languages
Result language
angličtina
Original language name
Analytical Formula for the Ratio of Central to Minimum Film Thickness in a Circular EHL Contact
Original language description
Prediction of minimum film thickness is often used in practice for calculation of film parameter to design machine operation in full film regime. It was reported several times that majority of prediction formulas cannot match experimental data in terms of minimum film thickness. These standard prediction formulas give almost constant ratio between central and minimum film thickness while numerical calculations show ratio which spans from 1 to more than 3 depending on M and L parameters. In this paper, an analytical formula of this ratio is presented for lubricants with various pressure–viscosity coefficients. The analytical formula is compared with optical interferometry measurements and differences are discussed. It allows better prediction, compared to standard formulas, of minimum film thickness for wide range of M and L parameters.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - 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
Result continuities
Project
<a href="/en/project/LO1202" target="_blank" >LO1202: NETME CENTRE PLUS</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Lubricants
ISSN
2075-4442
e-ISSN
—
Volume of the periodical
6
Issue of the periodical within the volume
3
Country of publishing house
CH - SWITZERLAND
Number of pages
11
Pages from-to
1-11
UT code for WoS article
000448335500024
EID of the result in the Scopus database
2-s2.0-85056430856