cavitation noise

Experimental Investigations of Influence of Gas Content in Water to Propeller Cavitation Noise

水中含气量对螺旋桨空泡噪声影响的试验研究

In this paper an experimental investigation was carried out, and it is proved: no matter whether tip vortex cavitation is visible, narrow band noise peak is connected with the flow near the tip of propeller.

本文用实验证实这种窄带噪声峰与桨叶梢部流动有关，无论梢涡空泡可见与否，都可能出现。

The Cavitation Noise and Characteristics in the Paraboloid of Spillway Tunnel

渥奇段的空化噪声与空化特性

Waveform simulation of low frequency line spectrum on propeller cavitation noise Specification for marine metallic propeller

舰船螺旋桨空化噪声低频线谱波形仿真GB/T12916-1991船用金属螺旋桨技术条件

The fluctuation pressure and noise of these propellers were measured as well in modeling wake field of large cavitation tunnel.

在大型空泡水筒中的模拟伴流场中分别对这三种形状叶梢的螺旋浆模型进行了高负荷水动力时的脉动压力和噪声测试。

Presented a data acquisition card for hydraulic turbine cavitation noise testing.

介绍水轮机空化噪声测试系统的采集卡设计.

The structure characteristics and flow-model of throttling groove were analyzed, and the sound-pressure model of cavitation noise inside throttling valves was predicted.

在对节流槽结构特征及流动模型进行分析的基础上，预测了节流阀内气穴噪声的声压模型。

Excessive fluid noise is usually an indication that cavitation is occurring.

如果流体噪音过大,则通常意味着出现气穴现象.

Make use of the laser-generated cavitation noise to generate false target based on this property, which is simulation of the cavitation noise generated by submarine propeller.

针对这一特征，考虑利用激光光源在远处水下产生空化噪声作为假目标，用来模拟潜艇螺旋桨产生的空化噪声。

On Acoustic Performance of Measuring Structure for Cavitation Noise

空化噪声量测结构的声学性能研究

It is shown that propeller cavitation noise is composed of continual spectrum and separable line spectrum.

结果表明，螺旋桨空泡噪声由连续谱和离散线谱组成。

Data Acquisition Card for Hydraulic Turbine Cavitation Noise Based on Consecutive Sample

基于连续采样的水轮机空化噪声采集卡

This article describes the propeller noise tests in JTU cavitation tunnel and some of these test results obtained.

本文介绍上海交通大学空泡筒进行螺旋桨噪声试验研究情况及部份结果。

The Design of System in Measuring the High Velocity Flow Cavitation Noise

高速水流空化噪声测试系统设计

The experiment shows that the design propeller has a lower cavitation noise than the original propeller.

试验表明,用该方法设计的螺旋桨辐射噪声比母型桨有明显的降低.