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

    【課題】CFDと試験結果を併用して水中における航走体による騒音を効率的かつ精度よく推定する航走体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を提供すること。【解決手段】航走体の騒音推定条件を入力し、航走体の騒音推定条件に基づいて数値流体力学(CFD)計算を行ない、数値流体力学(CFD)計算の過程で航走体に関する試験結果を抽出して数値流体力学(CFD)計算へ反映して補正を行い、航走体による水中音圧としての変動圧を数値流体力学(CFD)計算と試験結果を併用して求める。【選択図】図2


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    UNDERWATER NOISE ESTIMATION METHOD OF SAILING BODY, UNDERWATER NOISE ESTIMATION PROGRAM AND UNDERWATER NOISE ESTIMATION DEVICE


    Weitere Titelangaben:

    航走体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


    Beteiligte:

    Erscheinungsdatum :

    07.02.2019


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



    UNDERWATER SAILING BODY CONTROL DEVICE, UNDERWATER SAILING SYSTEM, UNDERWATER SAILING BODY CONTROL METHOD AND PROGRAM

    MOCHIZUKI KEISUKE / AWAYA ICHIRO / NAKADA MASAHIRO et al. | Europäisches Patentamt | 2017

    Freier Zugriff

    SAILING CONTROL METHOD FOR UNDERWATER SAILING BODY AND UNDERWATER SAILING BODY

    EGUCHI KAZUKI / FUKAMI TOMOYA | Europäisches Patentamt | 2017

    Freier Zugriff

    UNDERWATER SAILING BODY MONITORING DEVICE AND UNDERWATER SAILING BODY MONITORING METHOD

    SHIOGATA DAISUKE / SUDO HIROSHI | Europäisches Patentamt | 2018

    Freier Zugriff


    Estimation of underwater noise - a simplified method

    Hazelwood, R. A. / Connelly, J. | British Library Online Contents | 2005