Numerical Analysis of Herringbone-Grooved Gas-Lubricated Journal Bearings Using a Multigrid Technique

[+] Author and Article Information
Takuji Kobayashi

Bearing Engineering R&D Center, NTN Corporation, 3066 Higashikata, Kuwana, Mie, 511 Japan

J. Tribol 121(1), 148-156 (Jan 01, 1999) (9 pages) doi:10.1115/1.2833796 History: Received October 21, 1997; Revised March 06, 1998; Online January 24, 2008


In this paper, a multigrid technique is applied to the compressible Reynolds equation discretized by the divergence formulation in order to analyze both static and dynamic characteristics of herringbone-grooved gas-lubricated journal bearings. The developed code demonstrates quicker convergence than an optimized successive over-relaxation scheme, and the dominance in numerical efficiency is especially remarkable at higher values of bearing number where slow convergence is generally observed. Comparisons between the present nonlinear orbit solutions and previously published experimental results show reasonable agreement in both steady-state and dynamic stability performances.

Copyright © 1999 by The American Society of Mechanical Engineers
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