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一种含横向圆柱形空腔的声学覆盖层的去耦机理分析

黄凌志 肖勇 温激鸿 杨海滨 温熙森

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一种含横向圆柱形空腔的声学覆盖层的去耦机理分析

黄凌志, 肖勇, 温激鸿, 杨海滨, 温熙森

Analysis of decoupling mechanism of an acoustic coating layer with horizontal cylindrical cavities

Huang Ling-Zhi, Xiao Yong, Wen Ji-Hong, Yang Hai-Bin, Wen Xi-Sen
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  • 在水下结构表面敷设去耦覆盖层是降低其声辐射的有效途径. 为了深入分析一种含横向无限长空腔的覆盖层的去耦机理, 本文将其等效为均匀介质, 建立了敷设这种覆盖层的单向基体板在线激励下的声辐射模型, 验证了计算模型的有效性, 并利用计算模型对含横向空腔覆盖层的去耦机理进行了分析. 研究结果表明: 基体板-覆盖层接触面的能量流以纵波能量为主, 而横波能量很小, 因而计算覆盖层的去耦特性时可以忽略横波的作用; 和均匀覆盖层相比, 横向空腔型覆盖层在中高频段极大地增强了基体板的力阻抗, 从而更有效地抑制了基体板的振速; 此外, 和均匀覆盖层相比, 横向空腔型覆盖层和水的阻抗失配更大, 使其在中高频具有良好的振动传递损失特性. 因此, 总体而言, 含横向空腔的覆盖层相比均匀覆盖层具有更好的中高频去耦性能.
    Introducing the decoupling coating is an effective way to reduce sound radiation from underwater structures. In order to investigate the decoupling mechanism of a viscoelastic coating layer with horizontal cylindrical cavities, such a coating layer is approximated to a homogeneous layer with equivalent material properties, and a theoretical model is also developed to predict the sound radiation from a finite plate with such a decoupling coating layer. #br#The validity of the theoretical model is confirmed by comparison with the finite element method; and the decoupling mechanism of the coating layer is discussed. Numerical analysis shows that: (1) The energy flow across the interface between the plate and coating layer is mainly conveyed by longitudinal waves. (2) At a low frequency, the coating layer has nearly no decoupling effect. (3) In contrast with a homogeneous coating layer, the coating layer with horizontal cavities can greatly enhance the mechanical impedance in the mid- and high-frequency areas; hence the mean square velocity is effectively suppressed in the same area. (4) Compared with the homogeneous coating layer, the coating layer with horizontal cavities has a larger impedance mismatch with water, thus it exhibits great vibration transmission loss. Therefore, in general, the coating layer with horizontal cylindrical cavities has a better decoupling performance than the homogeneous coating layer in the mid- and high-frequency areas.
    • 基金项目: 国家自然科学基金(批准号: 51305448, 51275519)资助的课题.
    • Funds: Project supported by the National Natural Science Foundation of China (Grant Nos. 51305448, 51275519).
    [1]

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    Yang H B, Li Y, Zhao H G, Wen J, Wen X S 2014 Chin. Phs. B 23 104301

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    L L, Wen J H, Zhao H G, Meng H, Wen X S 2012 Acta Phys. Sin. 61 214301 (in Chinese) [吕林梅, 温激鸿, 赵宏刚, 孟浩, 温熙森 2012 物理学报 61 214301]

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    House J R C 1991 Proc. I. O. A 13 166

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    Tao M, Fan J, Tang W 2008 Acta Acoust. 33 220 (in Chinese) [陶猛, 范军, 汤渭霖 2008 声学学报 33 220]

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    Tao M, Tang W L, Hua H X 2010 J. Vib. Acoust. 132 61001

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    Wang X Z, Zhang A M, Pang F Z, Yao X L 2014 J. Sound Vib. 333 228

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    Zhu D W, Huang X C, Wang Y, Xiao F, Hua H 2014 J. Mechanical Engineering Science (in press)

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    He S, He Y A, Zhang W Q 2014 Acta Acoust. 39 177 (in Chinese) [何世平, 何元安, 张文群 2014 声学学报 39 177]

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    Yang H B, Li Y, Zhao H G, Wen J H, Wen X S 2013 Acta Phys. Sin. 62 154301 (in Chinese) [杨海滨, 李岳, 赵宏刚, 温激鸿, 温熙森 2013 物理学报 62 154301]

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    Ivansson S M 2014 J. Acoust. Soc. Am. 135 3338

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    Qiu C Y, Liu Z Y, Mei J, Ke M Z 2005 Solid State Commun. 134 765

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    Mei J, Liu Z Y, Qiu C Y 2005 J. Phys. :Condens. Matter 17 3735

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    Auld B A 1973 Acoustic Fields and Waves in Solids(Vol. 2) (New York:John Wiley & Sons) pp25-27

    [20]

    Arfken G B, Weber H J 2005 Mathematical Methods for Physicists (California:Elsevier Academic Press) pp687

    [21]

    Mei J, Liu Z Y, Shi J, Tian D C 2003 Phys. Rev. B 67 245107

    [22]

    Liu Z, Chan C T, Sheng P 2000 Phys. Rev. B 62 2446

    [23]

    Shen H J, Wen J H, Michael P P, Yu D L, Cai L, Wen X S 2013 Modelling Simul. Mater. Sci. Eng 21 65011

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    Shen H J, Michael P P, Wen J H, Yu D L, Cai L, Wen X S 2012 J. Phys. D:Appl. Phys. 45 285401

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    Fokin V, Ambati M, Sun C, Zhang X 2007 Phys. Rev. B 76 144302

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    Brekhovskikh L M 1980 Wave in layered media (New York:Acadamic Press) pp7-9

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    John B, Fahnline, Gary H K 1991 J. Acoust. Soc. Am. 90 2808

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    Auld B A 1973 Acoustic Fields and Waves in Solids(Vol. 1) (New York:John Wiley & Sons) pp154-155

  • [1]

    Zhao H G, Liu Y Z, Wen J H, Yu D L, Wen X S 2007 Acta Phys. Sin. 56 4700 (in Chinese) [赵宏刚, 刘耀宗, 温激鸿, 郁殿龙, 温熙森 2007 物理学报 56 4700]

    [2]

    Ivansson S M 2012 J. Acoust. Soc. Am. 131 2622

    [3]

    Zhao H G, Liu Y Z, Wen J H, Yu D L, Wang G, Wen X S 2006 Chin. Phys. Lett. 23 2132

    [4]

    Liu Z Y, Zhang X X, Mao Y W, Zhu Y Y, Yang Z Y, Chan C T, Sheng P 2000 Science 289 1734

    [5]

    Yang H B, Li Y, Zhao H G, Wen J, Wen X S 2014 Chin. Phs. B 23 104301

    [6]

    L L, Wen J H, Zhao H G, Meng H, Wen X S 2012 Acta Phys. Sin. 61 214301 (in Chinese) [吕林梅, 温激鸿, 赵宏刚, 孟浩, 温熙森 2012 物理学报 61 214301]

    [7]

    House J R C 1991 Proc. I. O. A 13 166

    [8]

    Foin O, Berry A 2000 J. Acoust. Soc. Am. 107 2501

    [9]

    Berry A, Foin O 2001 J. Acoust. Soc. Am. 109 2704

    [10]

    Tao M, Fan J, Tang W 2008 Acta Acoust. 33 220 (in Chinese) [陶猛, 范军, 汤渭霖 2008 声学学报 33 220]

    [11]

    Tao M, Tang W L, Hua H X 2010 J. Vib. Acoust. 132 61001

    [12]

    Wang X Z, Zhang A M, Pang F Z, Yao X L 2014 J. Sound Vib. 333 228

    [13]

    Zhu D W, Huang X C, Wang Y, Xiao F, Hua H 2014 J. Mechanical Engineering Science (in press)

    [14]

    He S, He Y A, Zhang W Q 2014 Acta Acoust. 39 177 (in Chinese) [何世平, 何元安, 张文群 2014 声学学报 39 177]

    [15]

    Yang H B, Li Y, Zhao H G, Wen J H, Wen X S 2013 Acta Phys. Sin. 62 154301 (in Chinese) [杨海滨, 李岳, 赵宏刚, 温激鸿, 温熙森 2013 物理学报 62 154301]

    [16]

    Ivansson S M 2014 J. Acoust. Soc. Am. 135 3338

    [17]

    Qiu C Y, Liu Z Y, Mei J, Ke M Z 2005 Solid State Commun. 134 765

    [18]

    Mei J, Liu Z Y, Qiu C Y 2005 J. Phys. :Condens. Matter 17 3735

    [19]

    Auld B A 1973 Acoustic Fields and Waves in Solids(Vol. 2) (New York:John Wiley & Sons) pp25-27

    [20]

    Arfken G B, Weber H J 2005 Mathematical Methods for Physicists (California:Elsevier Academic Press) pp687

    [21]

    Mei J, Liu Z Y, Shi J, Tian D C 2003 Phys. Rev. B 67 245107

    [22]

    Liu Z, Chan C T, Sheng P 2000 Phys. Rev. B 62 2446

    [23]

    Shen H J, Wen J H, Michael P P, Yu D L, Cai L, Wen X S 2013 Modelling Simul. Mater. Sci. Eng 21 65011

    [24]

    Shen H J, Michael P P, Wen J H, Yu D L, Cai L, Wen X S 2012 J. Phys. D:Appl. Phys. 45 285401

    [25]

    Fokin V, Ambati M, Sun C, Zhang X 2007 Phys. Rev. B 76 144302

    [26]

    Brekhovskikh L M 1980 Wave in layered media (New York:Acadamic Press) pp7-9

    [27]

    John B, Fahnline, Gary H K 1991 J. Acoust. Soc. Am. 90 2808

    [28]

    Auld B A 1973 Acoustic Fields and Waves in Solids(Vol. 1) (New York:John Wiley & Sons) pp154-155

计量
  • 文章访问数:  4682
  • PDF下载量:  240
  • 被引次数: 0
出版历程
  • 收稿日期:  2015-01-28
  • 修回日期:  2015-02-17
  • 刊出日期:  2015-08-05

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