Effect of recess depth on lubrication performance of annular recess hydrostatic thrust bearing by constant rate flow

Purpose The purpose of this paper is to describe a simulation and experimental research concerning the effect of recess depth on the lubrication performance of a hydrostatic thrust bearing by constant rate flow. Design/methodology/approach The computational fluid dynamics and finite volume method ha...

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Bibliographic Details
Published in:Industrial lubrication and tribology 2018-01, Vol.70 (1), p.68-75
Main Authors: Shao, Jun-peng, Liu, Guang-dong, Yu, Xiao-dong, Zhang, Yan-qin, Meng, Xiu-li, Jiang, Hui
Format: Article
Language:English
Subjects:
Bearing
Boundary conditions
Computational fluid dynamics
Computer simulation
Design
Energy consumption
Engineering
Finite volume method
Geometry
Heat
Journal bearings
Load
Lubricants & lubrication
Lubricating oils
Lubrication
Pressure distribution
Science
Studies
Thrust
Thrust bearings
Tribology
Viscosity
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Summary:Purpose The purpose of this paper is to describe a simulation and experimental research concerning the effect of recess depth on the lubrication performance of a hydrostatic thrust bearing by constant rate flow. Design/methodology/approach The computational fluid dynamics and finite volume method have been used to compute the lubrication characteristics of an annular recess hydrostatic thrust bearing with different recess depths. The performances are oil recess pressure, oil recess temperature and oil film velocity. The recess depth has been optimized. A test rig is established for testing the pressure field of the structure of hydrostatic thrust bearing after recess depth optimization, and experimental results show that experimental data are basically identical with the simulation results, which demonstrates the validity of the proposed numerical simulation method. Findings The results demonstrate that the oil film temperature decreases and the oil film pressure first increases and then decreases with an increase in the recess depth, but oil film velocity is constant. To sum up comprehensive lubrication performance, the recess depth of 3.5 mm is its optimal value for the annular recess hydrostatic thrust bearing. Originality/value The computed results indicate that to get an improved performance from a constant flow hydrostatic thrust bearing, a proper selection of the recess depth is essential.
ISSN:0036-8792
1758-5775
DOI:10.1108/ILT-03-2017-0066