Dynamické chování proudění v potrubí s olejem

Abstract

This Master thesis is dealing with dynamic behavior of flow in pipeline with oil. In theoretical part are difined steady and unsteady flow and modulus of elasticity of hydraulic fluid including the air influence. Modulus of elasticity of hydraulic fluid is important because it can influence dynamics behavior of hydraulic systems. In theoretical part are also described dynamic of pressure valve and mathematical modeling. In the practical part is defined hydraulic circuit for measuring hydraulic shock. In this part is described control of demonstration stand too. Mathematical modeling is realized in computer program Matlab SimHydraulics. In Master thesis is modeling direct hydraulic shock for curciuts with gear flow meter and with ultrasonic fluid flow meter. For the circuit with the ultrasonic fluid flow meter is modeling indirect hydraulic shock too. Simulation and subsequent comparison with the experiment is included in the last section. Results of comparison are the same.