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Status : Active
Standard Type : Main
Document No : ISO 20233-2:2019
Document Year : 2019
Pages : 10
Edition : 1
Section Volume : Ship design (ISO/TC 8/SC 8.)
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.