Research of Automated Positional Hydrodrive with Hydraulic Control Circuit

This paper explores the process of positioning of the hydraulic drive with the original hydromechanical control subsystem. Using direct numerical simulation in Matlab Simulink software environment, the effect of parameters of the hydraulic control circuit is investigated: the control pressure and the conduction of hydro-mechanical valve-positioner on positional cycle accuracy and the speed of operation. The modeling is done taking into account the nonstationary processes in the flowing part of the control device, preset by experiment. The analysis and comparison of the dependencies obtained as the result of multifactorial computing and full-scale experiments confirm the adequacy of the developed mathematical model of the hydraulic drive and are necessary for further optimization of its control devices parameters. The research results allowed for the recommendations to be made that increase the efficiency of hydraulic control circuit for realization of the rational motion control position cycle of technical objects.