Linearized PH Stability Theory for Finite Length, Self-Acting Gas-Lubricated, Plain Journal Bearings

[+] Author and Article Information
Chung-Wah Ng

Mechanical Technology, Inc., Latham, N. Y.

J. Basic Eng 87(3), 559-567 (Sep 01, 1965) (9 pages) doi:10.1115/1.3650606 History: Received July 21, 1964; Online November 03, 2011


Use of Ausman’s linearized, PH method to determine the threshold of half frequency whirl for a rigid rotor in self-acting cylindrical journal bearings is extended to include finite length effects. Rotating polar coordinates are used to derive the governing equation. Results obtained are generally consistent with several previous works in wide ranges of all parameters. This method is judged to give conservative results and is suitable for studying dynamic problems of more complicated systems.

Copyright © 1965 by ASME
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