Effects of surface forces on pure squeeze thin film EHL motion of circular contacts

Li Ming Chu, Jin Yuan Lai, Chi Hui Chien, Wang Long Li

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


The pure squeeze thin film elastohydrodynamic lubrication (thin film EHL) motion of circular contacts with effects of surface forces taken into account is explored under constant load conditions. The difference between thin film EHL model and EHL model is apparent as the film thickness is thinner than 5 nm. The oscillation phenomena in pressure and film thickness come mainly from the action of solvation forces. The effects of surface forces become significant as the film thickness becomes thinner. Moreover, the viscosity is oscillatory due to its dependency on the hydrodynamic pressure which is affected by surface forces.

Original languageEnglish
Pages (from-to)523-531
Number of pages9
JournalTribology International
Issue number3
Publication statusPublished - 2010 Mar 1

All Science Journal Classification (ASJC) codes

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


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