Hydraulic and Electric-Hydraulic Control Systems

This publication covers control sytems that employ proportional control elements, e.g., proportional control valves and hydrostatic transmissions, and gives extensive treatment to system modelling including algorithms for computer-based analysis. The three main features of this book are: Description and analysis of closed loop servo systems, and open and closed loop systems using proportional control valves; A novel rationalised approach to a wide range of system configurations, including flow feedback systems; A new modular computer program structure including automatic system optimisation, performance trends as a function of any independent variable, and transient response to any given duty cycle. The book essentially studies and analyses force and motion control systems, from simple hydraulic to complex electro-hydraulic control systems, bridges the gap in knowledge between the control engineer and the average hydraulic application engineer, and provides a contribution towards the wider application of hydraulic systems. This second enlarged edition includes an entirely new addition - a tutor for the application of Hydro Analyst. The tutor provides a `hands-on' system simulation procedure for the system modelling package Hydro Analyst supplied with this edition as a floppy disk. The package contains an extensive component database and comprehensive graphics facilities. This book will be of interest to engineers working in hydraulics and control.