Dynamics of a Proportional Fluidic Amplifier: Part 1

[+] Author and Article Information
R. A. Humphrey

Shell Development Company, Emeryville, Calif.

F. T. Brown

Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Mass.

J. Basic Eng 92(2), 303-310 (Jun 01, 1970) (8 pages) doi:10.1115/1.3424992 History: Received July 14, 1969; Online October 27, 2010


A general experimental procedure is described for determining the complete linearized characteristics of a fluidic component over a wide band of frequencies. The method is applied to a large-scale Corning proportional amplifier with a 0.054-in. throat for frequencies up to over 3 kHz. Similarity was preserved for a 1/4 scale amplifier operating at atmospheric conditions. Since all eight independent complex-number self and transfer admittances are given for linearization about the symmetrical state, the results can be used to predict the behavior of the amplifier in any compatible coupled or uncoupled environment. The paper is continued in Part 2, ASME Paper No. 69-WA/Flcs-3, with an examination of the causes of the observed dynamic behavior in this and other proportional amplifiers.

Copyright © 1970 by ASME
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