Numerical analysis of spiral oil wedge sleeve bearing including cavitation and wall slip effects

The modified Reynolds equation is established on the basis of critical shear stress model, in which the circumferential and axial wall slip of sleeve and journal surface is considered. Cavitation is treated using modified Elrod algorithm that simplifies the solution of modified Reynolds equation in...

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Bibliographic Details
Published in:Lubrication science 2015-04, Vol.27 (3), p.193-207
Main Authors: Wang, Li-li, Lu, Chang-hou
Format: Article
Language:English
Subjects:
Algorithms
Boundary conditions
Cavitation
cavitation model
critical shear stress
Mathematical models
Oil films
Reynolds equation
Sleeve bearings
spiral oil wedge
Wall slip
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Summary:The modified Reynolds equation is established on the basis of critical shear stress model, in which the circumferential and axial wall slip of sleeve and journal surface is considered. Cavitation is treated using modified Elrod algorithm that simplifies the solution of modified Reynolds equation in the full‐film region. The modified Reynolds equations considering wall slip and cavitation effect for two‐dimensional sleeve bearing are established. The results show that wall slip decreases oil film pressure, carrying capacity, friction drag and temperature rise but increases end leakage and cavitation region. The obtained results using the mass‐conserving boundary condition are compared with the Reynolds boundary condition. Copyright © 2014 John Wiley & Sons, Ltd.
ISSN:0954-0075
1557-6833
DOI:10.1002/ls.1267