The effect of surface roughness on elastohydrodynamically lubricated point contact

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A theoretical study of surface roughness effects on the elastohydrodynamically lubricated point contact is presented.The analysis is based on a Reynolds equation modified through flow factors determined bythe statistical properties of the surface topography.An improved elastic deformation calculation is incorporated into the EHL numericalscheme.This revised numerical technique is used to get the complete solution for the rough elastohydrodynamic point contact, whichtakes account of side leakage.The system that has been investigated is an isothermal, Newtonian fluid with Roelands viscosity entrained in pure rolling.Results arepresenteddemonstrating the effect of surface roughness parameters on film shape, pressure distribution, and rolling friction in aball bearing.

Original languageEnglish
Pages (from-to)531-538
Number of pages8
JournalASLE Transactions
Volume30
Issue number4
DOIs
Publication statusPublished - 1986 Jan 1

Fingerprint

Point contacts
surface roughness
Bearings (structural)
Surface roughness
surface roughness effects
elastohydrodynamics
Reynolds equation
Elastohydrodynamics
Newtonian fluids
elastic deformation
Elastic deformation
Surface topography
pressure distribution
Pressure distribution
topography
leakage
friction
Viscosity
viscosity
Friction

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

Cite this

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abstract = "A theoretical study of surface roughness effects on the elastohydrodynamically lubricated point contact is presented.The analysis is based on a Reynolds equation modified through flow factors determined bythe statistical properties of the surface topography.An improved elastic deformation calculation is incorporated into the EHL numericalscheme.This revised numerical technique is used to get the complete solution for the rough elastohydrodynamic point contact, whichtakes account of side leakage.The system that has been investigated is an isothermal, Newtonian fluid with Roelands viscosity entrained in pure rolling.Results arepresenteddemonstrating the effect of surface roughness parameters on film shape, pressure distribution, and rolling friction in aball bearing.",
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The effect of surface roughness on elastohydrodynamically lubricated point contact. / Jeng, Yeau-Ren.

In: ASLE Transactions, Vol. 30, No. 4, 01.01.1986, p. 531-538.

Research output: Contribution to journalArticle

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