Vliv budicí frekvence hydrogenerátoru na chování hydraulického obvodu

Abstract

Bachelor thesis deals with dynamic characteristic of hydraulic devices. In theoretical part there are described characteristics of liquids, methods of identifying excitation frequency of hydraulic system and some basic knowledge about noise and vibrations. Experimental part contains a description of hydraulic circuit, which was consisted of hydraulic pump, throttle valve, safety valve and flow meter. During the measurements were recorded pressure, flow and speed using the measuring system M5050 Hydrotechnik. Furthermore the noise was measured around the system by sound level meter VOLCRAFT SL-400 and vibration using vibrometer EXTECH 407860. The results of measurement are graphically and table processed and evaluated.