The simple hydraulic drive model of the typical industrial mechatronic system

The main types of hydraulic cylinders as actuators mechanisms. The differences in the cylinders with single and double stem were given. The simplest scheme of hydraulic drive was composed, moving objects with a mass. For the control valve the equation of static characteristics was obtained, associated fluid flow with control signal. The results were compared with the real object. According to the constraints the differential equations were derived that describe the elements of the hydraulic drive - control valve and cylinder. The advantages of the use of switchable transfer function for single-rod hydraulic cylinder are shown. Based on the differential equations, a block diagram of the hydraulic drive was made. The results of the simulation of hydraulic drive with a stepped impact are shown.