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RESEARCH PAPERS: Vibration and Sound

Rotor Active “Anti-Swirl” Control

[+] Author and Article Information
A. Muszynska, W. D. Franklin, D. E. Bently

Bently Rotor Dynamics Research Corporation, Minden, Nevada 89423

J. Vib., Acoust., Stress, and Reliab 110(2), 143-150 (Apr 01, 1988) (8 pages) doi:10.1115/1.3269491 History: Received August 12, 1987; Online November 23, 2009

Abstract

Rotor self-excited vibrations due to solid/fluid interaction, such as occurring in seals, can easily be reduced or eliminated by controlling fluid circumferential velocity. This is known as “anti-swirl” technique. An active “anti-swirl” control system for rotating machines is described in the paper. While mainly controlling rotor self-excited vibrations, this active control system reduces also rotor lateral vibrations caused by other factors (such as unbalance), by increasing the system effective damping.

Copyright © 1988 by ASME
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