The vibroacoustic response of a structurally excited cylindrical shell submerged in water is presented. The shell is coated with a soft elastic material embedded with circumferential arrays of resonant inclusions. The coating is modelled as a multilayered equivalent fluid composed of homogeneous layers of the host soft material and homogenised layers comprising voids or hard inclusions. The radiated acoustic pressure is analytically derived by assembling and solving continuity and kinematic conditions at the interfaces between the cylindrical shell and the multilayered coating. Coating designs with different combinations of homogenised layers are examined. Physical mechanisms governing acoustic performance of the various coating designs are described. We show that the material of the inclusions, tuning the local resonances of the inclusions and the distribution of the homogenised layers within the coating have a significant effect on the shell vibroacoustic response.

介绍了浸没在水中的结构激发圆柱壳的振动声学响应。外壳涂有柔软的弹性材料，嵌入了共振内含物的圆周阵列。涂层被建模为由主体软材料的均质层和包含空隙或硬夹杂物的均质层组成的多层等效流体。通过在圆柱壳和多层涂层之间的界面处组装和求解连续性和运动学条件，分析得出辐射声压。研究了具有不同均质层组合的涂层设计。描述了控制各种涂层设计的声学性能的物理机制。我们证明了夹杂物的材料，