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http://dx.doi.org/10.7839/ksfc.2021.18.2.001

Pressure/Flow Pulsation Characteristics of the Hydraulic System for Behaviour Prediction of the Prefill Valve  

Park, Jeong Woo (Department of Thermal Systems Energy Systems Research Division, Korea Institute of Machinery & Materials)
Khan, Haroon Ahmad (Department of Thermal Systems Energy Systems Research Division, Korea Institute of Machinery & Materials)
Jeong, Eun-A (Department of Thermal Systems Energy Systems Research Division, Korea Institute of Machinery & Materials)
Kwon, Sung-Ja (Department of 3D Printing Convergence Design, Yungnam Convergence Technology Campus of Korea Polytechnic)
Yun, So-Nam (Department of Thermal Systems Energy Systems Research Division, Korea Institute of Machinery & Materials)
Lee, Hue-Sung (Department of Convergence System Engineering, Chung Nam National University)
Publication Information
Journal of Drive and Control / v.18, no.2, 2021 , pp. 1-8 More about this Journal
Abstract
In this work, a circuit with a hydraulic power unit is formulated as a means of predicting the behavior of the prefill valve in the future. The behavior of the prefill valve can be examined by the measurements of the configured power unit, and the performance is determined by using hydraulic pumps, relief valves, and hydraulic hoses that make up the power unit. In particular, pressure/flow pulsation generated by hydraulic pumps can cause instability in the prefill valve and cause noise-induced degradation of the overall performance and reliability of the hydraulic system containing the prefill valve. Therefore, to study the behavior and performance of the prefill valve in a relatively accurate manner, the prediction of the characteristics of the hydraulic power unit driving the prefill valve is very important. In this study, the pulsation characteristics of the hydraulic pump were analyzed to theoretically demonstrate its relationship with different settings of the power unit, such as relief valve pressure settings and the presence/absence of the hose.
Keywords
Prefill Valve; Hydraulic System; Pressure Pulsation; Flow Pulsation; Pulsation Characteristics;
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