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TECHNICAL BRIEFS

Observation of Self-Excited Wobble in Face Seals

[+] Author and Article Information
I. Etsion

Department of Mechanical Engineering, Technion Haifa, Israel

R. A. Burton

Department of Mechanical Engineering and Astronautical Sciences, Northwestern University, Evanston, Ill.

J. of Lubrication Tech 101(4), 526-528 (Oct 01, 1979) (3 pages) doi:10.1115/1.3453407 History: Received May 18, 1979; Online October 20, 2010

Abstract

A face seal model consisting of a rigidly mounted rotor and a flexibly mounted stator was tested under conditions of eccentric loading. Self-excited oscillations in the form of combined precession and nutation of the stator were observed. The nature of the motion and its frequency are dependent on rotational speed, seal clearance, and external tilting moment. It is possible that some unexplained seal failures and waviness of seal faces are the result of such self excited wobble.

Copyright © 1979 by ASME
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