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Nano-meter film rheology and asperity lubrication

Jacobson, Bo LU (2002) In Journal of Tribology 124(3). p.595-599
Abstract
It is today possible to manufacture so smooth surfaces that they can elastically conform totally to each other over the whole Hertzian contact area. For pure rolling lubrication such surfaces only need an oil film of molecular dimensions to get total separation. When the rolling motion is combined with sliding, the pressure fluctuations inside the Hertzian contact redistribute the oil and make metal-to-metal contact Possible. The redistribution velocity is a function of the slip rate S and the number of asperities N from the inlet to the outlet of the Hertzian contact area. The asperity top oil film thickness decreases with a factor of the order 2((NS)) going from the inlet to the outlet of the Hertzian contact.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Tribology
volume
124
issue
3
pages
595 - 599
publisher
American Society Of Mechanical Engineers (ASME)
external identifiers
  • wos:000176240600022
  • scopus:0036629108
ISSN
0742-4787
DOI
10.1115/1.1467081
language
English
LU publication?
yes
id
0742f52d-a43c-4588-98bf-5e5c8a37057b (old id 334772)
date added to LUP
2007-10-24 12:42:47
date last changed
2017-01-01 04:20:52
@article{0742f52d-a43c-4588-98bf-5e5c8a37057b,
  abstract     = {It is today possible to manufacture so smooth surfaces that they can elastically conform totally to each other over the whole Hertzian contact area. For pure rolling lubrication such surfaces only need an oil film of molecular dimensions to get total separation. When the rolling motion is combined with sliding, the pressure fluctuations inside the Hertzian contact redistribute the oil and make metal-to-metal contact Possible. The redistribution velocity is a function of the slip rate S and the number of asperities N from the inlet to the outlet of the Hertzian contact area. The asperity top oil film thickness decreases with a factor of the order 2((NS)) going from the inlet to the outlet of the Hertzian contact.},
  author       = {Jacobson, Bo},
  issn         = {0742-4787},
  language     = {eng},
  number       = {3},
  pages        = {595--599},
  publisher    = {American Society Of Mechanical Engineers (ASME)},
  series       = {Journal of Tribology},
  title        = {Nano-meter film rheology and asperity lubrication},
  url          = {http://dx.doi.org/10.1115/1.1467081},
  volume       = {124},
  year         = {2002},
}