Investigation of transient states of the hydraulic power unit cooperating with the servovalve

Abstract

Authors present results of laboratory researches carried out on electrohydraulic servodrive which is working under intensive occurring of dynamic states of operation. Carried out laboratory researches aimed to characterise mutual interaction between a servo-drive and a hydraulic power supply. In the paper authors take note of pressure time diagrams in output port of the hydraulic power unit and input port of the servodrive both connected together with hydraulic hose. Authors are studding influence of working parameters settings of the hydraulic power supply into pressure course in the feeding line. We also investigated how real courses of measured pressures are different from the pressure value established for the relief valve.