Underwater sound absorption of an acoustic material embedded with coated cylindrical cavities

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Journal of Vibration and Shock ›› 2024, Vol. 43 ›› Issue (14) : 103-111.

WANG Shibo1,2,3，HU Bo1,2,3，ZHANG Haoyang1,2,3，CHEN Cheng1,2,3，CHEN Feng1,2,3

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Abstract

To solve the reduction of the sound absorption coefficient due to the increase of the porosity of the cavities embedded in anechoic coatings, an acoustic material embedded with coated cylindrical cavities is proposed in this paper, where the cylindrical cavities are covered with multiple coating layers. The sound absorption performance of the proposed acoustic material is calculated by finite element method. Compared with the acoustic material only with cylindrical cavities, the proposed one has a lower sound absorption range and higher absorption capacity. The absorption mechanism is revealed by investigating monopole resonance frequency. The monopole resonance frequency of a coated cylindrical cavity is lower than that of a cylindrical cavity, leading to a lower sound absorption frequency range. The result of the power density distribution shows that the multiple coating layers provide more interfaces, and the scattering of sound waves is enhanced. As a result, the sound energy loss is enhanced. The influences of the modulus and thickness distribution on the sound absorption performance of the multiple coating layers is studied. The positive gradient change of the modulus and negative gradient change of the thickness for the multiple coating layers can make the sound absorption performance better.

Key words

low-frequency sound absorption performance / anechoic coating；cylindrical cavity / multiple coating layers / parameters with gradient changes

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WANG Shibo1, 2, 3, HU Bo1, 2, 3, ZHANG Haoyang1, 2, 3, CHEN Cheng1, 2, 3, CHEN Feng1, 2, 3. Underwater sound absorption of an acoustic material embedded with coated cylindrical cavities[J]. Journal of Vibration and Shock, 2024, 43(14): 103-111

References

[1] Yang H, Xiao Y, Zhao H, et al. On wave propagation and attenuation properties of underwater acoustic screens consisting of periodically perforated rubber layers with metal plates[J]. Journal of Sound and Vibration, 2019, 444: 21-34. [2] Zhong J, Zhao H, Yang H, et al. Effect of Poisson’s loss factor of rubbery material on underwater sound absorption of anechoic coatings[J]. Journal of Sound and Vibration, 2018, 424: 293-301. [3] Fu X, Jin Z, Yin Y, et al. Sound absorption of a rib-stiffened plate covered by anechoic coatings[J]. The Journal of the Acoustical Society of America, 2015, 137(3): 1551-1556. [4] 刘国强, 楼京俊, 何其伟. 多层材料组合腔型吸声覆盖层的吸声特性研究[J]. 武汉理工大学学报(交通科学与工程版), 2016, 40(5): 850-853+858. LIU Guo-qiang, LOU Jing-jun, HE Qi-wei. Absorption characteristics of multi-layered material anechoic coating on composite cavities [J]. Journal of Wuhan University of Technology (Transportation Science & Engineering), 2016, 40(5): 850-853+858. [5] 罗忠, 胡俊波. 空气背衬条件下水中夹芯复合空腔结构吸声特性影响因素分析[J]. 武汉理工大学学报, 2013, 35(8): 66-71. LUO Zhong, HU Jun-bo. Absorption character analysis of the sandwich composite structure with cavum in air backing [J]. Journal of Wuhan University of Technology, 2013, 35(8): 66-71. [6] Zhao D, Zhao H, Yang H, et al. Optimization and mechanism of acoustic absorption of Alberich coatings on a steel plate in water[J]. Applied Acoustics, 2018, 140: 183-187. [7] Ivansson S M. Anechoic coatings obtained from two- and three-dimensional monopole resonance diffraction gratings [J]. The Journal of the Acoustical Society of America, 2012, 131(4): 2622-2637. [8] Sharma G S, Skvortsov A, MacGillivray I, et al. Sound transmission through a periodically voided soft elastic medium submerged in water[J]. Wave Motion, 2017, 70: 101-112. [9] Sharma G S, Skvortsov A, MacGillivray I, et al. Acoustic performance of gratings of cylindrical voids in a soft elastic medium with a steel backing[J]. The Journal of the Acoustical Society of America, 2017, 141(6): 4694-4704. [10] 赵宏刚, 温激鸿, 杨海滨, 等. 一种含柱形空腔结构橡胶层的吸声机理及优化[J]. 物理学报, 2014, 63(13): 238-243. ZHAO Hong-gang, WEN Ji-hong, YANG Hai-bin, et al. Acoustic absorption mechanism and optimization of a rubber slab with cylindrical cavities [J]. Acta Physica Sinica, 2014, 63(13): 238-243. [11] 胡博, 王世博, 杨德森, 等. 一种内嵌圆柱空腔阵列的低频宽带吸声覆盖层[P]. 中国, ZL201910214443.3, 2023-07-21. HU Bo, WANG Shi-bo, YANG De-sen, et al. A low-frequency broadband anechoic coating embedded with cylindrical cavity arrays [P]. China, ZL201910214443.3, 2023-07-21. [12] Wang S, Hu B, Du Y. Sound absorption of periodically cavities with gradient changes of radii and distances between cavities in a soft elastic medium[J]. Applied Acoustics, 2020, 170: 107501. [13] 胡博, 王世博, 杜逸眉, 等. 一种含有梯度变化圆柱空腔的低频吸声覆盖层[P]. 中国, ZL202011450355.2, 2022-11-22. HU Bo, WANG Shi-bo, DU Yi-mei, et al. A low-frequency anechoic coating embedded with cylindrical cavities with gradient changes [P]. China, ZL202011450355.2, 2022-11-22. [14] Wang S, Hu B, Li S, et al. Acoustic performance of cavities with gradient changes of cavity numbers under low lattice constant in a soft elastic medium[J]. Noise Control Engineering Journal, 2022, 70(3): 288-297. [15] 师康康, 靳国永, 叶天贵, 等. 含空腔的功能梯度声学覆盖层水下吸声特性[J]. 声学学报, 2021, 46(3): 394-404. SHI Kang-kang, JIN Guo-yong, YE Tian-gui, et al. Underwater sound absorption performance of functionally graded anechoic coating with cavities [J]. Acta Physica Sinica, 2021, 46(3): 394-404. [16] 胡博, 王世博, 李松, 等. 一种含有参数呈梯度变化圆柱形散射体的低频吸声覆盖层[P]. 中国, CN202110993035.X, 2021-12-17. HU Bo, WANG Shi-bo, DU Yi-mei, et al. A low-frequency anechoic coating embedded with cylindrical scatterers with gradient changes of parameters [P]. China, CN202110993035.X, 2021-12-17. [17] 杨海滨, 李岳, 赵宏刚, 等. 一种含圆柱形谐振散射体的黏弹材料低频吸声机理研究[J]. 物理学报, 2013, 62(15): 223-229. YANG Hai-bin, LI Yue, ZHAO Hong-gang, et al. Low-frequency acoustic absorption mechanism of a viscoelastic layer with resonant cylindrical scatterers [J]. Acta Physica Sinica, 2013, 62(15): 223-229. [18] 吕林梅, 温激鸿, 赵宏刚, 等. 内嵌不同形状散射子的局域共振型黏弹性覆盖层低频吸声性能研究[J]. 物理学报, 2012, 61(21): 293-300. LV Lin-mei, WEN Ji-hong, ZHAO Hong-gang, et al. Low-frequency acoustic absorption of viscoelastic coating with various shapes of scatterers [J]. Acta Physica Sinica, 2012, 61(21): 293-300. [19] Shi K, Jin G, Liu R, et al. Underwater sound absorption performance of acoustic metamaterials with multilayered locally resonant scatterers[J]. Results in Physics, 2019, 12: 132-142. [20] 靳国永, 师康康, 叶天贵, 等. 一种基于多层散射体与空腔耦合共振的水下声学覆盖层[P]. 中国, CN201911098103.5, 2022-12-13. JIN Guo-yong, SHI Kang-kang, YE Tian-gui, et al. An underwater acoustic coating based on coupling resonance of multiple scatterers and cavities [P]. China, ZL201911098103.5, 2022-12-13. [21] Jin G, Shi K, Ye T, et al. Sound absorption behaviors of metamaterials with periodic multi-resonator and voids in water[J]. Applied Acoustics, 2020, 166: 107351. [22] Gu Y, Zhong H, Bao B, et al. Experimental investigation of underwater locally multi-resonant metamaterials under high hydrostatic pressure for low frequency sound absorption[J]. Applied Acoustics, 2021, 172: 107605. [23] Sainidou R, Stefanou N, Psarobas I E, et al. A layer-multiple-scattering method for phononic crystals and heterostructures of such[J]. Computer Physics Communications, 2005, 166(3): 197-240. [24] Cheng Y, Zhou C, Yuan B G, et al. Ultra-sparse metasurface for high reflection of low-frequency sound based on artificial Mie resonances[J]. Nature Materials, 2015, 14(10): 1013-1019. [25] Long H, Gao S, Cheng Y, et al. Multiband quasi-perfect low-frequency sound absorber based on double-channel Mie resonator[J]. Applied Physics Letters, 2018, 112(3): 033507. [26] Qiu C, Liu Z, Mei J, et al. The layer multiple-scattering method for calculating transmission coefficients of 2D phononic crystals[J]. Solid State Communications, 2005, 134(11): 765-770. [27] Liu Z, Chan C T, Sheng P, et al. Elastic wave scattering by periodic structures of spherical objects: Theory and experiment[J]. Physical Review B, 2000, 62(4): 2446-2457. [28] Sheng P, Mei J, Liu Z, et al. Dynamic mass density and acoustic metamaterials[J]. Physica B: Condensed Matter, 2007, 394(2): 256-261. [29] Mei J, Liu Z, Wen W, et al. Effective dynamic mass density of composites[J]. Physical Review B, 2007, 76(13): 134205. [30] Liu Z, Chan C T, Sheng P. Three-component elastic wave band-gap material[J]. Physical Review B, 2002, 65(16): 165116. [31] Mei J, Liu Z, Shi J, et al. Theory for elastic wave scattering by a two-dimensional periodical array of cylinders: An ideal approach for band-structure calculations[J]. Physical Review B, 2003, 67: 245107. [32] Mei J, Liu Z, Qiu C. Multiple-scattering theory for out-of-plane propagation of elastic waves in two-dimensional phononic crystals[J]. Journal of Physics: Condensed Matter, 2005, 17(25): 3735.