本文件规定了船舶设计中螺旋桨空化噪声评估的模型试验方法， 主要关注噪声源定位。 该程序包括模型试验装置、噪声测量、数据处理和来源 本地化。目标噪声源为螺旋桨空化，本文件描述了试验装置 以及重现船舶空化模式的条件，这与ISO 20233-1中的相同。这个 噪声测量使用水听器阵列进行源定位。因此 还讨论了水听器阵列的仪器，以及合适的阵列信号 测量数据的处理。最后，给出了一种可视化和解释结果的方法。交叉引用:ISO 20233-1:2018IEC 60565购买本文件时可获得的所有现行修改件均包含在购买本文件中。

This document specifies a model test method for propeller cavitation noise evaluation in ship design, focusing mainly on the noise source localization. The procedure comprises the model test set-up, noise measurements, data processing and source localization. The target noise source being propeller cavitation, this document describes the test set-up and conditions to reproduce the cavitation patterns of the ship, which is the same as in ISO 20233-1. The noise measurements are performed using a hydrophone array for the source localizations. Therefore, the instrumentation of the hydrophone array is also addressed, as well as a suitable array signal processing of the measured data. Finally, a method to visualize and to interpret the results is presented.Cross References:ISO 20233-1:2018IEC 60565All current amendments available at time of purchase are included with the purchase of this document.