TY - GEN
T1 - Test and analysis of self-excited pressure oscillations and noise in a hydraulic jet-pipe servo-valve
AU - Li, Songjing
AU - Zhang, Wei
AU - Zhang, Min
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/11/24
Y1 - 2015/11/24
N2 - Self-excited high frequency pressure oscillations in the flow field of a hydraulic servo-valve are usually the source of high frequency noise. In this paper, by using a piezoelectric dynamic pressure transducer and a microphone, the self-excited high frequency pressure oscillations and noise in a hydraulic jet-pipe servo-valve are measured. The experiments are carried out when the supply pressures of the servo-valve are 11MPa and 20MPa respectively. In order to obtain more precise information, FFT and wavelet analysis are applied to resolve the tested pressure oscillation and noise signals into several basic wave signals. The possible causes of the self-excited high frequency oscillations and noise are predicted according to the analysis results. Based on the results, suggestions are given to reduce the pressure oscillations and noise in hydraulic servo-valves.
AB - Self-excited high frequency pressure oscillations in the flow field of a hydraulic servo-valve are usually the source of high frequency noise. In this paper, by using a piezoelectric dynamic pressure transducer and a microphone, the self-excited high frequency pressure oscillations and noise in a hydraulic jet-pipe servo-valve are measured. The experiments are carried out when the supply pressures of the servo-valve are 11MPa and 20MPa respectively. In order to obtain more precise information, FFT and wavelet analysis are applied to resolve the tested pressure oscillation and noise signals into several basic wave signals. The possible causes of the self-excited high frequency oscillations and noise are predicted according to the analysis results. Based on the results, suggestions are given to reduce the pressure oscillations and noise in hydraulic servo-valves.
KW - hydraulic jet-pipe servo-valve
KW - noise
KW - self-excited pressure oscillations
UR - https://www.scopus.com/pages/publications/84962621352
U2 - 10.1109/FPM.2015.7337132
DO - 10.1109/FPM.2015.7337132
M3 - 会议稿件
AN - SCOPUS:84962621352
T3 - Proceedings of 2015 International Conference on Fluid Power and Mechatronics, FPM 2015
SP - 317
EP - 322
BT - Proceedings of 2015 International Conference on Fluid Power and Mechatronics, FPM 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th International Conference on Fluid Power and Mechatronics, FPM 2015
Y2 - 5 August 2015 through 7 August 2015
ER -