A Study of the Oil-Lubricated Herringbone-Grooved Journal Bearing—Part 1: Numerical Analysis

[+] Author and Article Information
Kyungphil Kang, Yoonchul Rhim

Department of Mechanical Engineering, Yonsei University, Seoul, Korea

Kiro Sung

Image & Media Lab., LG Electronics Inc., Seoul, Korea

J. Tribol 118(4), 906-911 (Oct 01, 1996) (6 pages) doi:10.1115/1.2831627 History: Received February 02, 1995; Revised February 14, 1996; Online January 24, 2008


A numerical study of the oil-lubricated herringbone-grooved journal bearing is presented for the case of eight circular-profile grooves on the sleeve surface. The governing differential equation derived from the mass balance is solved by using the finite difference method. Some of the groove geometries are constrained because of the groove forming processes. Optimal values for various bearing parameters are obtained to maximize the radial force and to improve the stability characteristics. Results are compared with the plain and rectangular-profile grooved journal bearings. Radial force, attitude angle, stiffness and damping coefficients, and stability map are given for optimal configurations.

Copyright © 1996 by The American Society of Mechanical Engineers
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