ISO 20233-2:2019

Ships and marine technology — Model test method for propeller cavitation noise evaluation in ship design — Part 2: Noise source localization

Publication date: Aug 7, 2019

General information

Current stage: 60.60 Effective date: Aug 7, 2019

Originator: ISO

Owner: ISO/TC 8/SC 8

Type: International Standard

ICS: 47.020.20

Languages: English

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Scope

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.

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PUBLISHED
ISO 20233-2:2019
60.60 Standard published
Aug 7, 2019

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