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RESEARCH PAPERS

The Dynamic Characteristics of a Turborotor Simulator Supported on Gas-Lubricated Foil Bearings—Part 2: Operation With Heating and Thermal Gradients

[+] Author and Article Information
L. Licht

Ampex Corporation, Redwood City, Calif.

J. of Lubrication Tech 92(4), 650-659 (Oct 01, 1970) (10 pages) doi:10.1115/1.3451488 History: Received March 03, 1970; Online October 18, 2010

Abstract

A high-speed rotor, supported by gas-lubricated foil bearings, is free from self-excited whirl and displays no loss of load capacity when vibrated at frequency equal half the rotational speed [1]. It is demonstrated here that in addition to tolerance of geometrical imperfections, misalignment, and foreign particles [3, 4], the foil bearing performs well at elevated temperatures and accommodates appreciable temperature gradients. The foil bearing is endowed with superior wipe-wear characteristics, and the flexibility of the foil accounts not only for the stability of the foil bearing but also for its forgiveness with respect to distortion, contamination, and contact.

Copyright © 1970 by ASME
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