An Innovative Approach for Accurate Hydraulic Actuating

Abstract

The paper presents a linear hydraulic positioning system with a special proportional distributing device which is different from a classic one (proportional directional valve, servo-directional valve) by containing a mechanical adding system. Two positioning systems with mechanical position feedback are proposed. The mathematical model of such a system and the results of the numerical simulation are presented. Two experimental models were built and tested and the experimental results are presented.