Nonlinear Transient and Frequency Response Analysis of a Hydrodynamic Journal Bearing

[+] Author and Article Information
F. K. Choy, M. J. Braun, Y. Hu

Department of Mechanical Engineering, University of Akron, Akron, Ohio 44325

J. Tribol 114(3), 448-454 (Jul 01, 1992) (7 pages) doi:10.1115/1.2920904 History: Received February 26, 1991; Revised July 29, 1991; Online June 05, 2008


The traditional approach is to characterize the behavior and performance of fluid film hydrodynamic journal bearings by means of linearized bearing analysis. The objective of this paper is to examine the nonlinear characteristics of the said journal bearing. Results based on bearing stiffness characteristics, steady and transient vibration orbits, and frequency response functions obtained from both linear and nonlinear bearing simulations are compared with each other. Conclusions are drawn from the results obtained from a prototypical bearing configuration used as an example in this analysis.

Copyright © 1992 by The American Society of Mechanical Engineers
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