预报螺旋桨噪声的方法

The method of predicting propeller noise

螺旋桨是舰船主要的噪声源,螺旋桨噪声的预报对评价螺旋桨声学性能及螺旋桨声学设计有非常重要的意义。本文分别对螺旋桨空泡噪声、螺旋桨无空泡高频噪声、螺旋桨无空泡低频离散谱噪声、螺旋桨无空泡低频连续谱噪声等四类噪声的预报方法进行了介绍,并对今后螺旋桨噪声预报方法研究提出了建议和展望。

The noise of propeller is the main source in the warship noise. To predict the noise of the warship propeller is significant for estimating the propeller′s acoustical performance and designing low noise propeller. This paper introduces the predicting method of radial noise of propeller, including the cavitation noise, the no cavitation high frequency noise, the no cavitation low frequency discrete noise and the no cavitation low frequency continual noise. Some advices and prospects are brought up in this paper.