The Molecular Transit Time and Its Correlation With the Stability of Externally Pressurized Gas-Lubricated Bearings

[+] Author and Article Information
R. C. Turnblade

ITT Federal Laboratories, San Fernando, Calif.

J. Basic Eng 85(2), 297-303 (Jun 01, 1963) (7 pages) doi:10.1115/1.3656582 History: Received January 02, 1962; Online November 03, 2011


This paper advances the hypothesis that the regimes of unstable operation of externally pressurized gas-lubricated bearings may be defined by certain dimensionless parameters in much the same way as the Reynolds’ number predicts the transition of laminar to turbulent flow. A theoretical discussion of the basic principles of gas bearings indicates that unstable operation is related to the capacity of a bearing to change its contained fluid mass. Some general expressions are developed which suggest the nature of some dimensionless parameters and permit experimental evaluation of the theory.

Copyright © 1963 by ASME
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