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RESEARCH PAPERS: Medical Devices and Sporting Equipment

An Experimental Investigation on the Response of a Flexible Rotor Mounted in Pressure Dam Bearings

[+] Author and Article Information
R. D. Flack, M. E. Leader, E. J. Gunter

Department of Mechanical and Aerospace Engineering, School of Engineering and Applied Science, University of Virginia, Charlottesville, Va 22901

J. Mech. Des 102(4), 842-850 (Oct 01, 1980) (9 pages) doi:10.1115/1.3254831 History: Received November 01, 1979; Online November 17, 2009

Abstract

The response of a flexible rotor mounted in six bearing sets has been experimentally determined. One set of axial groove bearings and five sets of pressure dam bearings were tested. Conventional synchronous tracking was used in the analysis and other techniques utilizing an FFT analyzer were developed. The stability of the system was seen to strongly depend on the design of the step bearings. The dam bearings were also noted to lock into subsynchronous whip during deceleration after the system went unstable. The response of the system with varying degrees of unbalance is also analyzed and several structural resonances of the rotor system are discussed.

Copyright © 1980 by ASME
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