CHARACTERISTICS OF FLUIDBORNE NOISE GENERATED BY FLUID POWER PUMP (3RD REPORT, DISCHARGE PRESSURE PULSATION OF EXTERNAL GEAR PUMP).

被引：9
|
作者：
Kojima, Eiichi [1 ]
Shinada, Masaaki [1 ]
机构：
[1] Kanagawa Univ, Faculty of, Engineering, Yokohama, Jpn, Kanagawa Univ, Faculty of Engineering, Yokohama, Jpn
来源：
Bulletin of the JSME | 1984年 / 27卷 / 232期
关键词：
FLOW OF FLUIDS - Noise; Acoustic;
D O I：
10.1299/jsme1958.27.2188
中图分类号：
学科分类号：
摘要：
This paper presents characteristics of discharge pulsating pressure generated by an external gear pump. Based on the theoretical and experimental examinations, it is pointed out first that the former mathematical model for flow ripple is insufficient in the case of high working pressure or low pump speed. It is found experimentally that a large amount of leakage through relief grooves takes place intermittently in the vicinity of the central position of trapping. This leakage affects dominantly the fluctuation of a discharge flow (flow ripple), especially its higher harmonic components.
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页码：2188 / 2195
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