Acoustic metamaterials achieve the function of absorbing sound through equivalent negative parameters and bandgaps. Sound absorption is closely related to structural design. How to effectively control acoustic metamaterials’ acoustic performance through structural design is of vital importance. This paper summarizes the structural design of typical acoustic metamaterials of the membrane, plates, Helmholtz cavities, and coupling structures from the structural design perspective. Acoustic metamaterials of different structures have their suitable application scenarios. Here, we review the latest progress of acoustic metamaterials in which various structures were applied to broaden the bandgap. Furthermore, this review may provide guidance for the potential application of acoustic metamaterials in engineering practice.

中文翻译：

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控制结构优化声学超材料吸声性能：综述

声学超材料通过等效负参数和带隙实现吸声功能。吸声与结构设计密切相关。如何通过结构设计有效控制声学超材料的声学性能至关重要。本文从结构设计的角度总结了膜、板、亥姆霍兹腔、耦合结构等典型声学超材料的结构设计。不同结构的声学超材料都有其合适的应用场景。在这里，我们回顾了应用各种结构来拓宽带隙的声学超材料的最新进展。此外，该综述可为声学超材料在工程实践中的潜在应用提供指导。