Vent Effects on the Response of a Proportional Fluid Amplifier

[+] Author and Article Information
A. J. Healey

General Electric Company, Schenectady, N. Y.

J. Basic Eng 90(1), 90-96 (Mar 01, 1968) (7 pages) doi:10.1115/1.3605070 History: Received August 01, 1967; Online November 03, 2011


Fluid amplifier dynamic response can be a limiting factor in the design of closed-loop systems. An approximation analysis is presented which extends previous work to include the effect of vent fluid, the inertia and friction of which combine to provide additional dynamic lags. Experimental frequency response results obtained using water show reasonable correlation over a range of supply pressures, indicating that for some amplifier designs, vent effects cannot be neglected.

Copyright © 1968 by ASME
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