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Finite element method for mixed elastohydrodynamic lubrication of journal‐bearing systems
Author(s) -
Liu Wing Kam,
Xiong Shangwu,
Guo Yong,
Wang Q. Jane,
Wang Yansong,
Yang Qingmin,
Vaidyanathan Kumar
Publication year - 2004
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1022
Subject(s) - lubrication , waviness , asperity (geotechnical engineering) , bearing (navigation) , finite element method , lubricant , cavitation , surface finish , mechanics , materials science , deformation (meteorology) , fluid bearing , mechanical engineering , engineering , structural engineering , computer science , composite material , physics , artificial intelligence
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. Copyright © 2004 John Wiley & Sons, Ltd.