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Title:
船舶の水中騒音推定方法、水中騒音推定プログラム及び水中騒音推定装置
Document Type and Number:
Japanese Patent JP6974828
Kind Code:
B2
Abstract:
To provide an underwater noise estimation method, an underwater noise estimation program and an underwater noise estimation device estimating noise by a sailing body underwater by a combination of CFD and test result effectively and accurately.SOLUTION: Fluctuating pressure as underwater sound pressure by a sailing body is acquired by a combination of numeric value hydrodynamics (CFD) calculation and test result by: inputting noise estimation condition for a sailing body; carrying out numeric value hydrodynamics (CFD) calculation based on noise estimation condition of the sailing body; extracting a test result regarding the sailing body in a process of numeric value hydrodynamics and carrying out compensation by reflecting to the numeric value hydrodynamics (CFD) calculation.SELECTED DRAWING: Figure 2

Inventors:
Nobuaki Sakamoto
Kamiirisa Hikaru
Application Number:
JP2017140307A
Publication Date:
December 01, 2021
Filing Date:
July 19, 2017
Export Citation:
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Assignee:
National Research and Development Agency Maritime, Port and Aeronautical Technology Research Institute
International Classes:
B63B71/20; B63H5/07
Domestic Patent References:
JP201036600A
JP201038556A
Other References:
川村隆文,“連載 船舶CFDの最前線 第3回 推進器シミュレーション”,KANRIN(咸臨),日本,日本船舶海洋工学会,2015年09月10日,第62号,p.43-46,DOI:10.14856/kanrin.62.0_43,ISSN 2424-161X(online), 1880-3725(print)
上入佐光,後藤英親,“気泡力学による船舶水中雑音予測法の開発”,三井造船技報,日本,三井造船株式会社,2005年06月30日,第185号,p.38-44,ISSN 0026-6825
Thomas Lloyd, Douwe Rijpkema, Erik van Wijngaarden,“Marine propeller acoustic modelling: comparing CFD results with an acoustic analogy method”,Proceedings of Fourth International Symposium on Marine Propulsors, smp'15,米国,smp chair committee,2015年,p.678-689,ISBN 978-0-9964594-4-0
大橋訓英,日野孝則,坂本信晶,“推進器影響を考慮した波浪中船体周り流れのシミュレーション”,数値流体力学シンポジウム講演予稿集,日本,日本流体力学会,2013年12月,第27回,p.1-5
黄鎮川,川村隆文,竹腰善久,藤井昭彦,木村校優,竹谷正,“翼端荷重度の異なる舶用プロペラに発生する非定常キャビテーションに関する数値シミュレーション”,日本船舶海洋工学会講演会論文集,日本,日本船舶海洋工学会,2009年05月,第8号,p.309-312,ISSN 1880-6538
Attorney, Agent or Firm:
Shinichi Abe
Yoshihiro Shimizu
Yuji Tsujida
Takaaki Ota