propeller noise的例句大全

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。

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A time domain method for propeller noise prediction including aircraft fuselage effect

考虑飞机舱壁影响的螺旋桨声场时域预测法

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ship propeller noise can be predicted by non-dimensional analysis of ship model propeller noise.

通过无量纲分析船模螺旋桨噪声可以预报实船的螺旋桨噪声。

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Study on fluctuating pressure and noise induced by ship propeller

船舶螺旋桨诱导的脉动压力和噪声的研究

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Theoretical model of noise caused by ship propeller cavitation

舰船螺旋桨空泡噪声的数理模型

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As an example, the measurement of the equivalent sound source center of the propeller rotating noise on the light aircraft AD-200 has been carried out and the results of the measurement are satisfactory.

作为实例，识别AD&200轻型飞机的螺旋桨旋转噪声等价声源中心的测量取得了非常好的结果。

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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

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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。

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Study of Marine Propeller Loading Noise

螺旋桨负荷噪声研究

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Unsteady loading noise of counter-rotating propeller

反旋桨扇非定常负荷噪声的研究

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The unsteady Loading noise generated by interaction of a front rotor wake with an aft rotor in a counter-rotating ( CR) propeller is analyzed and the noise radiation formulae are derived.

本文着重研究了反旋桨扇前排转子尾流与后排转子干涉形成的非定常负荷噪声，并与试验结果作了对比。

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EC-135 Eurocopter helicopters combined with the low noise ducted propeller end of patented technology.

EC-135直升飞机结合欧洲直升机公司的低噪音涵道尾螺旋浆专利技术.

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With a low-pitched rumbling noise, the propeller began to rotate.

伴随着隆隆的低沉噪声，螺旋桨开始旋转起来。

《柯林斯高阶英汉双解学习词典》

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.

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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。

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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

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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。

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Period characteristics of radiated noise at high frequency is investigated by a method based on short time Fast Fourier Transformation, and propeller speed is estimated.

用短时傅立叶分析的方法研究了辐射噪声在高频段时频变化的周期性，估计了目标的螺旋桨转速。

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