TEHD Analysis for Tilting-Pad Journal Bearings Using Upwind Finite Element Method
作者:
Jinsang Kim,
AlanB. Palazzolo,
RavindraK. Gadangi,
期刊:
Tribology Transactions
(Taylor Available online 1994)
卷期:
Volume 37,
issue 4
页码: 771-783
ISSN:1040-2004
年代: 1994
DOI:10.1080/10402009408983359
出版商: Taylor & Francis Group
关键词: Elastohydrodynamic Lubrication;Thermal Effects;Tilting-Pad Bearings;Lubricant Rheology;Boundary Lubrication
数据来源: Taylor
摘要:
A general approach for incorporating heat transfer and elastic deformation effects into a tilting-pad journal bearing simulation model is presented. A global analysis method is used, which includes variable viscosity and heat transfer effects in the fluid film, elastic deformation and heat conduction effects in the pads, and elastic deformation effect in the pivots. The two-dimensional variable viscosity. Reynolds equation produces pressure distributions in the axial and circumferential directions. The energy equation is two-dimensional, assuming that the temperature variation in the axial direction is negligible. The elasticity and heat conduction models are also two-dimensional, being in the midline cross-section of the bearing, including the circumferential and cross-film directions. An upwind technique is used in the finite element formulation of the energy equation to remove numerical instability due to the convective term. Simulation results are compared with the test and predicted values of previous researchers.Presented at the 48th Annual Meeting in Calgary, Alberta, Canada May 17-20, 1993
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