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http://dx.doi.org/10.5293/KFMA.2002.5.2.043

Steady-State Performances Analysis of a Tilting-Pad Gas Bearing  

Kwon, Tae-Kyu (전북대학교 기계공학과)
Publication Information
The KSFM Journal of Fluid Machinery / v.5, no.2, 2002 , pp. 43-49 More about this Journal
Abstract
In this paper, the steady-state performances analysis of a tilting pad gas bearing(TPGB) we analyzed by using finite element method for compressible Reynolds' equation. TPGB is used in a high-expansion-ratio expander running at a speed of 230,000 rpm. In order to solve the nonlinear finite element equations, the Newton-Raphson method is applied. The variations of the loading capacity, friction force and tilting angle of a single pad v.s. eccentricity direction of eccentricity and bearing number are investigated. The condition for the equilibrium of a pad, which is important for safe working of the bearing, is stated. The performances of the three pad bearing such as loading capacity, friction moment are predicted.
Keywords
Tilting-pad gas bearing; Gas expander; Steady-state performance;
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