Publication detail

Fundamentals of thermal elastohydrodynamic lubrication in Si3N4 and steel circular contacts

KANETA, M. YANG, P. KŘUPKA, I. HARTL, M.

English title

Fundamentals of thermal elastohydrodynamic lubrication in Si3N4 and steel circular contacts

Type

WoS Article

Language

en

Original abstract

The Si3N4 and steel are one of representative material combinations used in actual machine elements. The fundamental tribo-characteristics in Si3N4 and steel circular contacts are described through non-Newtonian thermal elastohydrodynamic lubrication analysis. The central film thickness and pressure spike are markedly influenced by the sign of the slideroll ratio, i.e. by the positive and negative thermal viscosity wedge actions, while the minimum film thickness is very little affected by them. The thermal expansion of the fluid is also an important factor controlling the film thickness. Even if dimensionless parameters U, G, and W are fixed, the coefficient of traction and the film thickness are very much influenced by the equivalent radius of contact bodies.

Keywords in English

Thermal elastohydrodynamic lubrication; thermal viscosity wedge action; thermal conductivity; thermal expansion; slide-roll ratio; Si3N4–steel contact; equivalent radius

Released

2015-08-17

Publisher

Sage

Location

UK

ISSN

1350-6501

Journal

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

Volume

229

Number

8

Pages from–to

929–939

Pages count

11

BIBTEX


@article{BUT112543,
  author="KANETA, M. and YANG, P. and KŘUPKA, I. and HARTL, M.",
  title="Fundamentals of thermal elastohydrodynamic lubrication in Si3N4 and steel circular contacts",
  journal="PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY",
  year="2015",
  volume="229",
  number="8",
  pages="929--939",
  issn="1350-6501"
}