• CN:11-2187/TH
  • ISSN:0577-6686

›› 1999, Vol. 35 ›› Issue (6): 52-55.

• 论文 • 上一篇    下一篇

海水液压泵气蚀初生特征的识别

周华;杨华勇;李壮云   

  1. 浙江大学流体传动及控制国家重点实验室;华中理工大学
  • 发布日期:1999-11-01

CAVITATION INCEPTION OF SEA WATER HYDRAULIC PUMP

Zhou Hua;Yang Huayong;Li Zhuangyun   

  1. Zhejiang University Huazhong University of Science and Technology
  • Published:1999-11-01

摘要: 基于低频压力脉动是气蚀初生的伴生现象,分析了气蚀初生与出口压力脉动的机理,并对海水液压泵进行了气蚀初生特性的试验研究,通过识别气蚀和内泄对出口压力脉动信号时域和频域3个特征量的影响,得到了泵的气蚀初生判别规则。

关键词: 海水, 内泄, 气蚀初生, 压力脉动, 液压泵

Abstract: Based on low frequency fluctuation is an important cavitation-associated phenomenon, mechanisms of cavitation inception and pump outlet pressure are analyzed. The experimental results of power spectra for sea water hydraulic pump show the affection of cavitation and inner leakage on three character parameters. Some criteria are suggested to distinguish the initiation of cavitation from inner leakage.

Key words: Cavitation inception, Hydraulic pump, Internal leakage, Pressure fluctuation, Seawater

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