Abstract
This article deals with experimental measurement and numerical simulation of static and dynamic characteristics of the proportional directional valve. The characteristics of the proportional directional valve are measured on experimental equipment. At the static characteristic, pressure drop on the proportional directional valve, flow and oil temperature are measured on this equipment. The spool position is measured to determine of the dynamic characteristic of the proportional directional valve. Mathematical model of the proportional directional valve is created using Matlab SimScape Fluids software and is complemented by a mathematical model of the experimental equipment. The simulation results on the mathematical model are compared with the results of the experimental measurement.
Highlights
Proportional directional valves are widely used in industrial applications
Dynamic characteristics describe the ability of the proportional directional valve to respond to rapid changes of the control signal
This paper deals with the measurement and numerical simulation of the static and dynamic characteristics of the proportional directional valve
Summary
Proportional directional valves are widely used in industrial applications. A low power control is used in proportional directional valve control. The proportional directional valve properties can be described by characteristics [1]. Dynamic characteristics describe the ability of the proportional directional valve to respond to rapid changes of the control signal. Simulation of hydraulic systems operating conditions with proportional directional valve is possible by computer technology. Mathematical model to simulate the proportional directional valve was designed using Matlab Simulink. The proportional directional valve model was assembled from blocks that are described by mathematical equations. The proportional directional valve model includes the influence of inertial forces, viscous friction and stiffness of the spring acting on the spool
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