Abstract We proposed an effective acoustic abatement solution comprised of periodic resonators and multi-panel structures with porous lining, which incorporates the wideband capability of porous materials and the low-frequency advantage of locally resonant structures together. Theoretical model and numerical implementation are developed and validated. Two-dimensional poroelastic field expressions are used and resonator forces are incorporated. The results agree well with those reported in the literature and the results obtained from the finite element method. It turns out that sound insulation concerning both the amplitude and tuning bandwidth can be achieved effectively using porous additions and locally-resonant designs. This study presents a promising and practical alternative for wideband acoustic modulation.

中文翻译：

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使用周期性多孔弹性复合结构的宽带声学调制

摘要 我们提出了一种有效的消声解决方案，它由周期性谐振器和多孔衬里的多面板结构组成，它将多孔材料的宽带能力和局部谐振结构的低频优势结合在一起。开发和验证了理论模型和数值实现。使用二维多孔弹性场表达式并结合谐振器力。结果与文献报道的结果和有限元方法得到的结果非常吻合。事实证明，使用多孔添加物和局部共振设计可以有效地实现关于振幅和调谐带宽的隔音。这项研究为宽带声学调制提供了一种有前途且实用的替代方案。