Detail publikačního výsledku

Fundamentals of thermal elastohydrodynamic lubrication in Si3N4 and steel circular contacts

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

Originální název

Fundamentals of thermal elastohydrodynamic lubrication in Si3N4 and steel circular contacts

Anglický název

Fundamentals of thermal elastohydrodynamic lubrication in Si3N4 and steel circular contacts

Druh

Článek WoS

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

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

Klíčová slova v angličtině

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

Autoři

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

Rok RIV

2016

Vydáno

17.08.2015

Nakladatel

Sage

Místo

UK

ISSN

1350-6501

Periodikum

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

Svazek

229

Číslo

8

Stát

Spojené království Velké Británie a Severního Irska

Strany od

929

Strany do

939

Strany počet

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"
}