Stability of Hydraulic Systems with Focus on Cavitating Pumps

Increasing use is being made of transmission matrices to characterize
unsteady flows in hydraulic system components and to analyze the stability of
such systems.

This paper presents some general characteristics which should be examined in any experimentally measured transmission matrices and a methodology for the analysis of the stability of transmission matrices in hydraulic systems of order 2. These characteristics are then examined for cavitating pumps and the predicted
instabilities (known as auto-oscillation) compared with experimental observations in a particular experimental system