The dynamic behavior of a rolling element bearing under auxiliary operation in rotor/magnetic bearing systems is analyzed. When contact with the rotor occurs, the inner race experiences high impact forces and rapid angular acceleration. A finite element model is used to account for flexibility of the inner race in series with non-linear ball stiffnesses arising from the ball-race contact zones. The dynamic conditions during rotor/inner race contact, including ball/race creep, are deduced from a non-linear matrix equation. The influences of bearing parameters are considered together with implications for energy dissipation in the bearing.
The Dynamic Behavior of a Rolling Element Auxiliary Bearing Following Rotor Impact
Contributed by the Tribology Division for publication in the ASME JOURNAL OF TRIBOLOGY. Manuscript received by the Tribology Division February 7, 2001; revised manuscript received June 1, 2001. Associate Editor: B. O. Jacobson.
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Cole , M. O. T., Keogh , P. S., and Burrows , C. R. (June 1, 2001). "The Dynamic Behavior of a Rolling Element Auxiliary Bearing Following Rotor Impact ." ASME. J. Tribol. April 2002; 124(2): 406–413. https://doi.org/10.1115/1.1430673
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