Computer Aided Design Process for Hydraulic Servo

Abstract This study presents a method of computer support for the design of a hydraulic servo dedicated to the aircraft control system. A 3D geometric model of the servo was developed, which enabled the simulation of its kinematics. The paper presents a simulation model of a hydraulic servo that enables simulation of the dynamics of its mechanisms. The servomechanism model takes into account the dynamics of the movement of the distributor slider and the dynamics of the actuator piston rod movement under the influence of forces occurring in the servo. As a result of the simulation, step characteristics and static characteristics of the servo response were obtained. The presented model makes it possible to visualize the dynamics of operation of the prototype servo in various modes of its operation with different parameters of its control. It allows you to quickly and conveniently test the concept of an hydraulic servo and evaluate its functioning.