The Rotordynamic Coefficients of Mechanical Seals Having Two Flexibly Mounted Rotors

[+] Author and Article Information
J. Wileman, I. Green

The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332

J. Tribol 113(4), 795-804 (Oct 01, 1991) (10 pages) doi:10.1115/1.2920695 History: Received February 26, 1990; Revised July 05, 1990; Online June 05, 2008


The Reynolds equation is derived for a mechanical seal in which both elements are flexibly mounted to rotating shafts. Stiffness and damping coefficients for the fluid film are calculated for the three degrees of freedom of each element based upon a small perturbation analysis. The analogous coefficients for simpler configurations (e.g., flexibly mounted rotor, flexibly mounted stator) contained in the literature are shown to be obtainable as degenerate cases of the more general results presented in this work.

Copyright © 1991 by The American Society of Mechanical Engineers
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