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RESEARCH PAPERS

Dynamic Film Pressure Measurements in Journal Bearings for Use in Rotor Balancing

[+] Author and Article Information
E. Christensen, J. Tonnesen, J. W. Lund

Department of Machine Elements, The Technical University of Denmark, Lyngby, Denmark

J. Eng. Ind 98(1), 92-100 (Feb 01, 1976) (9 pages) doi:10.1115/1.3438882 History: Received May 27, 1975; Online July 15, 2010

Abstract

The paper presents the results of an experimental investigation where membrane transducers in the journal bearing wall are used to measure the dynamic oil-film pressures caused by rotor unbalance whirl. The results are applied successfully to balancing the rotor, and the experimental measurements of amplitude and pressure response are found to agree well with theoretical predictions, based on a linear analysis. The measurement accuracy of the pressure transducers compare favorably with the accuracy obtained with shaft displacement probes.

Copyright © 1976 by ASME
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