Optimization of the leakage flow of electric hydraulic amplifier of nozzle-flap type

Authors: Ermakov S.V., Grachev K.V.
Published in issue: #2(55)/2021
DOI: 10.18698/2541-8009-2021-2-672
Category: Power, Metallurgic and Chemical Engineering | Chapter: Hydraulic Machines and Hydropneumatic units
Keywords: hydraulic amplifier, nozzle-flap, dynamic model, transient, transient time, maximum dynamic error, waste leakage, throttle
Published: 01.03.2021

The authors analyzed the influence of the throttle installed in the supply line of the hydraulic bridge of the hydraulic amplifier of the nozzle-flap type. The structural dynamic diagram of an amplifier with an additional throttle is simulated in MATLAB Simulink. The characteristics of the hydraulic amplifier were obtained for different throttle diameters. Amplifier simulation revealed some dependencies. With a decrease in the flow area of the throttle slot, the unproductive leakage decreases, and the transient process from the oscillatory process goes over to the aperiodic process. As well as for the amplifier considered in this article, it is possible to analyze the transient processes of any other amplifier and, based on the data obtained, draw conclusions about the advisability of using an additional throttle for various technical problems.

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