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水下航行体表面湍流脉动压力波数−频率谱测试应用分析

吕世金 高岩 刘进 沈琪

吕世金, 高岩, 刘进, 等. 水下航行体表面湍流脉动压力波数−频率谱测试应用分析[J]. 中国舰船研究, 2020, 15(X): 1–6 doi: 10.19693/j.issn.1673-3185.01581
引用本文: 吕世金, 高岩, 刘进, 等. 水下航行体表面湍流脉动压力波数−频率谱测试应用分析[J]. 中国舰船研究, 2020, 15(X): 1–6 doi: 10.19693/j.issn.1673-3185.01581
LYU S J, GAO Y, LIU J, et al. Application analysis on the wavenumber-frequency spectrum of pressure excited by a turbulent boundary layer on the wall of an underwater test vehicle[J]. Chinese Journal of Ship Research, 2020, 15(0): 1–6 doi: 10.19693/j.issn.1673-3185.01581
Citation: LYU S J, GAO Y, LIU J, et al. Application analysis on the wavenumber-frequency spectrum of pressure excited by a turbulent boundary layer on the wall of an underwater test vehicle[J]. Chinese Journal of Ship Research, 2020, 15(0): 1–6 doi: 10.19693/j.issn.1673-3185.01581

水下航行体表面湍流脉动压力波数−频率谱测试应用分析

doi: 10.19693/j.issn.1673-3185.01581
详细信息
    作者简介:

    吕世金,男,1973年生,硕士,研究员。研究方向:船舶水动力噪声预报与控制,船舶水下噪声测试,水下材料声学性能测试。E-mail:lsj5341@163.com

    高岩,女,1982年生,硕士,高级工程师。研究方向:流动激励力预报与试验。Email:44187420@qqcom

    刘进,男,1987年生,博士,高级工程师。研究方向:舰船结构振动噪声预报与控制。 Email :908188248@qq.com

    沈琪,男,1988年生,硕士,高级工程师。研究方向:流激结构振动声辐射预报与控制。Email: york536@ 163.com

    通信作者:

    吕世金

  • 中图分类号: U661.44

Application analysis on the wavenumber-frequency spectrum of pressure excited by a turbulent boundary layer on the wall of an underwater test vehicle

  • 摘要:   目的  分析不同模型表面流动激励力的相关性测试结果在流激振动声辐射中的应用。  方法  利用湍流脉动的压力波数−频率谱计算流激平板声辐射模型,建立水下航行体湍流脉动压力波数−频率谱测试应用方法,并将测量结果与经典模型计算结果进行比较。  结果  结果显示,平板模型的湍流脉动压力波数−频率谱测量结果与经典模型计算结果比较一致,偏差小于3 dB;在环频以上频段,回转体模型可近似为平板,其表面湍流脉动压力波数−频率谱测试结果与平板模型的差别很小,偏差小于3 dB;在环频以下频段,采用平板模型的激励力测试结果计算回转体的流激振动声辐射会带来较大的偏差。  结论  试验与分析结果可为水下航行体流动激励力测试应用提供理论基础。
  • 图  1  矩形弹性平板模型

    Figure  1.  Model of rectangular elastic plate

    图  2  试验模型

    Figure  2.  The test model

    图  3  测试得到的模型表面脉动压力波数-频率谱

    Figure  3.  Measurement for the wavenumber-frequency spectra of turbulent pressure fluctuation

    图  4  流激平板辐射声功率比较

    Figure  4.  Comparison of flow-induced sound radiation power on plate

    图  5  不同模型激励力下平板辐射声功率比较

    Figure  5.  Comparison of sound radiation power on plate induced by difference fluid force model

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出版历程
  • 收稿日期:  2019-04-22
  • 修回日期:  2020-08-02
  • 网络出版日期:  2020-12-10

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