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RESEARCH PAPERS

The Effect of Drain Orifice Damping on the Performance Characteristics of a Servovalve Flapper/Nozzle Stage

[+] Author and Article Information
J. Watton

Department of Mechanical Engineering and Energy Studies, University College, Cardiff, U.K.

J. Dyn. Sys., Meas., Control 109(1), 19-23 (Mar 01, 1987) (5 pages) doi:10.1115/1.3143812 History: Received April 01, 1984; Online July 21, 2009

Abstract

The effect of a return line orifice on the steady-state performance and dynamic characteristics of a servovalve flapper/nozzle stage is investigated. Generalized design characteristics are initially developed and a specific application is then pursued by including torque motor dynamics. The possible cause of high frequency whistle within such systems is then discussed. A sufficient condition for valve whistle is established and shown to be critically dependent upon the supply pressure.

Copyright © 1987 by ASME
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