RESEARCH PAPERS: Rotor Dynamics Papers

Analysis and Identification of Subsynchronous Vibration for a High Pressure Parallel Flow Centrifugal Compressor

[+] Author and Article Information
R. G. Kirk, J. C. Nicholas, G. H. Donald, R. C. Murphy

Ingersoll-Rand Company, Phillipsburg, N.J. 08865

J. Mech. Des 104(2), 375-383 (Apr 01, 1982) (9 pages) doi:10.1115/1.3256354 History: Received June 10, 1981; Online November 17, 2009


The evaluation of turbomachinery designs prior to actual hardware test and field installation is now the rule rather than the exception for rotating machinery manufacturers. This requires the verification of the current state of the art analytical techniques for rotor-bearing-seal dynamics by development testing and/or controlled test stand or field vibration studies. This paper presents the summary of a complete analytical design evaluation of an existing parallel flow compressor and reviews a recent field vibration problem that manifested itself as a subsynchronous vibration that tracked at approximately 2/3 of compressor speed. The comparison of predicted and observed peak response speeds, frequency spectrum content, and the performance of the bearing-seal systems are presented as the events of the field problem are reviewed. Conclusions and recommendations are made based upon the results of this design review.

Copyright © 1982 by ASME
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