Variable Pump Systems

Abstract

This chapter makes use of the concepts already introduced to show how the dynamic characteristics of one type of complete hydraulic servo system can be predicted. The technique involves analysing the component parts separately and then combining the analyses to predict how the system will behave when the components are coupled together. In this chapter the only two components considered are a pump and a motor. As with all linearised analyses, the aim is to obtain a mathematical model which is readily dealt with but at the same time gives reasonably realistic predictions of actual system behaviour.