Norm

NEN-ISO 20233-1:2018 en

Schepen en maritieme techniek - Modelbeproevingssmethode voor evaluatie van door schroefcavitatie geïnduceerd geluid in de ontwerpfase - Deel 1: Schatting bronsterkte

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Over deze norm

Status Definitief
Aantal pagina's 13
Commissie Schepen en maritieme techniek
Gepubliceerd op 01-03-2018
Taal Engels
NEN-ISO 20233-1 specifies a model test method for propeller cavitation noise evaluation in ship design. The procedure comprises reproduction of noise source, noise measurements, post processing and scaling. The target noise source is propeller cavitation. Thus, this document describes the test set-up and conditions to reproduce the cavitation patterns of the ship based on the similarity laws between the model and the ship. The propeller noise is measured at three stages. The measurement targets for each stage are propeller cavitation noise, background noise, and transmission loss. For the source level evaluations, corrections for the background noise and the transmission loss are applied to the measured propeller cavitation noise. Finally, the full-scale source levels are estimated from the model scale results using a scaling law.

Details

ICS-code 47.020.20
Nederlandse titel Schepen en maritieme techniek - Modelbeproevingssmethode voor evaluatie van door schroefcavitatie geïnduceerd geluid in de ontwerpfase - Deel 1: Schatting bronsterkte
Engelse titel Ships and marine technology - Model test method for propeller cavitation noise evaluation in ship design - Part 1: Source level estimation

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