High-Speed Rotor Suspension Formed by Fully Floating Hydrodynamic Radial and Thrust Bearings

[+] Author and Article Information
Juraj Dworski

The Boeing Company, Industrial Products Division, Seattle, Wash.

J. Eng. Power 86(2), 149-160 (Apr 01, 1964) (12 pages) doi:10.1115/1.3677567 History: Received January 18, 1963; Online January 10, 2012


The hydrodynamic suspension of a 44,000-rpm gas turbine rotor is described with emphasis on interaction between the flexible rotor and its supports. Bearings with relatively large clearances are shown to allow continuous operation at the rotor first critical-speed of 22,000 rpm. The apparent absence of hydrodynamic system instabilities is attributed to the use of simple floating-sleeve bearings. A parametric study of the influence of bearing clearances upon vibrational excitation relief is presented together with test data collected on actual system hardware.

Copyright © 1964 by ASME
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