Dynamic Stability of a Rotor Filled or Partially Filled With Liquid

[+] Author and Article Information
Wen Zhang, Jiong Tang, Mingde Tao

Department of Applied Mechanics, Fudan University, Shanghai 200433, P.R. China

J. Appl. Mech 63(1), 101-105 (Mar 01, 1996) (5 pages) doi:10.1115/1.2787182 History: Received January 21, 1994; Revised July 14, 1994; Online October 26, 2007


The dynamic stability of a high-spinning liquid-filled rotor with both internal and external damping effects involved in is investigated in this paper. First, in the case of the rotor subjected to a transverse harmonic motion, the dynamic pressure of the liquid acting on the rotor is extracted through a planar flow analysis. Then the equation of perturbed motion for the liquid-filled rotor is derived. The analytical stability criteria as well as the stability boundaries are given. The results are extensions of those given by previous literature.

Copyright © 1996 by The American Society of Mechanical Engineers
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