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Experimental verification and practical application of torquewhirl theory of rotordynamic instabilityA theory developed by Vance in 1978 to explain the destabilizing effect of torque on a whirling rotor was experimentally verified. The measurements made on a specially designed test apparatus are described. New computer models were also developed to investigate the effect of torque on rotordynamic stability of multidisk flexible rotor bearing systems. The effect of torque was found to be most pronounced when the system is already marginally stable from other influences. The modifications required to include torque in a typical shaft transfer matrix are described, and results are shown which identify the type of rotor design most sensitive to load torque.
Document ID
19860020697
Document Type
Conference Paper
Authors
Vance, J. M. (Texas A&M Univ. College Station, TX, United States)
Noah, S. T. (Texas A&M Univ. College Station, TX, United States)
Yim, K. B. (Sundstrand Corp. Rockford, Ill., United States)
Date Acquired
August 12, 2013
Publication Date
December 1, 1985
Publication Information
Publication: NASA. Lewis Research Center Instability in Rotating Machinery
Subject Category
MECHANICAL ENGINEERING
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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