Experimental analysis of hydraulic discharge line in the frequency domain

5th ModTech International Conference - Modern Technologies in Industrial Engineering

Klarecki, K.^1 ; Rabsztyn, D.^1 ; Hetmanczyk, M.P.^1

Silesian University of Technology, Institute of Engineering Processes Automation and Integrated Manufacturing Systems, Konarskiego 18A St., Gliwice

44-100, Poland^1

关键词: Different frequency;    Distributed parameter;    Experimental analysis;    Experimental test;    Frequency domains;    Long transmission lines;    Parameter variable;    Pressure pulsation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/227/1/012072/pdf
DOI  :  10.1088/1757-899X/227/1/012072

来源: IOP

【 摘 要 】

The article presents the results of the experimental test of the pressure pulsation propagation across hydraulic line. The tests have been conducted in the form of a complete two-level experiment, having selected the following parameter variables: flexible hose type (1 or 2-wire hose), pressure value in the pressure line, rotational speed of the pump shaft, pressure line length. The series of pressure runs were analysed in frequency domain using FFT method. The results confirmed the prediction that the discharge line should be treated as a hydraulic transmission line (similar to the long transmission line) with distributed parameters, which variously attenuates pressure pulses of different frequencies.