Development of Techniques for the Static and Dynamic Analysis of Fluid State Components and Systems

This report describes development oü analytical techniques necessary for design of systems using fluldlc components. It covers the analytical and experimental work on five separate tasks intended to extend the usefulness of previously conceived methods. The results lead to the following conclusions: 1) Valid equivalent circuits have been developed to describe the dynamic behavior of most fluid amplifiers. 2) These equivalent circuits are useful for frequencies from zero through 2000 cps. 3) The validity of certain methods previously developed for evaluating equivalent circuit elements has been confirmed. 4) Static characteristic curves of amplifier performance of the type developed under this program can be normalized, thereby minimizing the number of sets of curves necessary to describe the behavior of an amplifier. 5) The mathematical model derived for a simple impedance element is valid for low values of through-flow; additional work is needed to modify it for high through-flow values.