BS ISO 20233-1:2018

Ships and marine technology. Model test method for propeller cavitation noise evaluation in ship design - Source level estimation

BS ISO 20233-1:2018 发布历史

1   Scope This document 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.

BS ISO 20233-1:2018由英国标准学会 GB-BSI 发布于 2018-02-28，并于 2018-02-28 实施。

BS ISO 20233-1:2018在国际标准分类中归属于: 47.020.20 船用发动机和推进系统。

BS ISO 20233-1:2018的历代版本如下：

• 2018年 BS ISO 20233-1:2018

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标准号

BS ISO 20233-1:2018

发布

2018年

发布单位

英国标准学会

当前最新

BS ISO 20233-1:2018

 

 

适用范围

1   Scope This document 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.

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