Finite element method for mixed elastohydrodynamic lubrication of journal-bearing systems

Wing Kam Liu*, Shangwu Xiong, Yong Guo, Q. Jane Wang, Yansong Wang, Qingmin Yang, Kumar Vaidyanathan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


A finite element model is presented for mixed lubrication of journal-bearing systems operating in adverse conditions. The asperity effects on contact and lubrication at large eccentricity ratios are modelled. The elastic deformation due to both hydrodynamic and contact pressure, and the cavitation of the lubricant film are considered in the model system. Two verification problems with both theoretical and experimental comparisons are given to show the effectiveness of this model. Finally, a new example is presented which discusses the influence of waviness depth, secondary roughness, external force and shaft speed on the mixed lubrication.

Original languageEnglish (US)
Pages (from-to)1759-1790
Number of pages32
JournalInternational Journal for Numerical Methods in Engineering
Issue number10
StatePublished - Jul 14 2004


  • Finite element method
  • Journal-bearing system
  • Mixed elastohydrodynamic lubrication

ASJC Scopus subject areas

  • Numerical Analysis
  • Engineering(all)
  • Applied Mathematics


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