DESIGN OF AN ELECTRO HYDRAULIC SERVO DRIVE ON THE BASIS OF THE PRINCIPLE OF MINIMIZING ENERGY COSTS

Abstract

The questions of the possibility of choosing the optimal parameters of an electro-hydraulic servo drive from the point of view of energy excellence at the design stage are considered in two cases: under the action of only inertial load and when combined with inertial and static loads. The resulting engineering methodology for calculating the drive allows one to minimize power consumption by choosing the minimal required cylinder size and the optimal pressure setting for the pressure valve. Analytical dependences are obtained for calculating the power, the steady-state speed of the executive element and the flow rate, which allow choosing the rational form of the transient process in the drive and are the basis for the next stage of the dynamic synthesis of the electro-hydraulic servo drive, namely, choosing the optimal value of the gain of the electronic amplifier, as well as the structure and parameters of the correction link.