This paper discusses the stability of a rigid rotor supported by double-row admission journal bearings with circular slot restrictors. In the theoretical analysis, the energy loss at the outlet of the slot is taken into account because the gas flow is subject to a rapid change in direction, and here, the energy loss coefficient is determined experimentally. It is found that a better agreement between the theoretical and experimental results for the threshold of instability can be obtained by considering the energy loss. Furthermore, in this paper, it is shown experimentally that an aerostatic journal bearing with circular slot restrictors has higher stiffness and higher stability than a conventional point source bearing with inherently compensated feeding holes.
Skip Nav Destination
Article navigation
April 1988
Research Papers
Stability of a Rigid Rotor Supported by Aerostatic Journal Bearings With Circular Slot Restrictors (On the Double-Row Admission Bearing)
S. Yoshimoto,
S. Yoshimoto
Department of Mechanical Engineering, The Science University of Tokyo, 1-3 Kagurazaka Shinjuku-ku, Tokyo 162 Japan
Search for other works by this author on:
Y. Anno,
Y. Anno
Department of Mechanical Engineering, The Science University of Tokyo, 1-3 Kagurazaka Shinjuku-ku, Tokyo 162 Japan
Search for other works by this author on:
T. Ohashi
T. Ohashi
Department of Mechanical Engineering, The Science University of Tokyo, 1-3 Kagurazaka Shinjuku-ku, Tokyo 162 Japan
Search for other works by this author on:
S. Yoshimoto
Department of Mechanical Engineering, The Science University of Tokyo, 1-3 Kagurazaka Shinjuku-ku, Tokyo 162 Japan
Y. Anno
Department of Mechanical Engineering, The Science University of Tokyo, 1-3 Kagurazaka Shinjuku-ku, Tokyo 162 Japan
T. Ohashi
Department of Mechanical Engineering, The Science University of Tokyo, 1-3 Kagurazaka Shinjuku-ku, Tokyo 162 Japan
J. Tribol. Apr 1988, 110(2): 228-234 (7 pages)
Published Online: April 1, 1988
Article history
Received:
December 20, 1986
Online:
October 29, 2009
Citation
Yoshimoto, S., Anno, Y., and Ohashi, T. (April 1, 1988). "Stability of a Rigid Rotor Supported by Aerostatic Journal Bearings With Circular Slot Restrictors (On the Double-Row Admission Bearing)." ASME. J. Tribol. April 1988; 110(2): 228–234. https://doi.org/10.1115/1.3261590
Download citation file:
Get Email Alerts
Cited By
Related Articles
Numerical and Experimental Analyses of the Dynamic Characteristics of Journal Bearings With Square Dimples
J. Tribol (January,2018)
Journal Bearing Stiffness and Damping Coefficients Using Nanomagnetorheological Fluids and Stability Analysis
J. Tribol (October,2014)
Numerical Modeling and Analysis of Flexure-Pivot Tilting-Pad Bearing
J. Tribol (September,2017)
Related Proceedings Papers
Related Chapters
Summary and Conclusions
Bearing Dynamic Coefficients in Rotordynamics: Computation Methods and Practical Applications
Average Shaft Centerline Plots
Fundamentals of Rotating Machinery Diagnostics
Hydrodynamic Lubrication
Design of Mechanical Bearings in Cardiac Assist Devices