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Homepage>BS Standards>47 SHIPBUILDING AND MARINE STRUCTURES>47.020 Shipbuilding and marine structures in general>47.020.20 Marine engines and propulsion systems>BS ISO 20233-2:2019 Ships and marine technology. Model test method for propeller cavitation noise evaluation in ship design Noise source localization
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immediate downloadReleased: 2019-08-12
BS ISO 20233-2:2019 Ships and marine technology. Model test method for propeller cavitation noise evaluation in ship design Noise source localization

BS ISO 20233-2:2019

Ships and marine technology. Model test method for propeller cavitation noise evaluation in ship design Noise source localization

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Standard number:BS ISO 20233-2:2019
Pages:20
Released:2019-08-12
ISBN:978 0 580 97564 6
Status:Standard
DESCRIPTION

BS ISO 20233-2:2019


This standard BS ISO 20233-2:2019 Ships and marine technology. Model test method for propeller cavitation noise evaluation in ship design is classified in these ICS categories:
  • 47.020.20 Marine engines and propulsion systems

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.