论文标题
元容器：基于周期性结构的噪声造成室
Metahouse: noise-insulating chamber based on periodic structures
论文作者
论文摘要
噪声污染仍然是一个具有挑战性的问题，需要开发新型的噪声绝缘系统。在声学超材料领域的广泛工作导致了各种通风结构的发生，但是，对于可听见的光谱的相当狭窄的区域，这些结构通常被证明。在这项工作中，我们进一步扩展了基于超材料的系统的想法，开发了代表宽带噪声绝缘结构的元容器室的概念。广泛的停止频段源自构成结构的赫尔姆霍兹谐振器对之间的强耦合。我们在数值和实验上证明了光谱范围内的平均传输-18 dB范围从1500到16500 Hz。结构的稀疏度以及使用光学透明材料的可能性表明，根据结构元素的相互位置，腔室也可能以部分光学透明度为特征。获得的结果对于开发新型的噪音结构的发展是有希望的。
Noise pollution remains a challenging problem requiring the development of novel systems for noise insulation. Extensive work in the field of acoustic metamaterials has led to occurrence of various ventilated structures which, however, are usually demonstrated for rather narrow regions of the audible spectrum. In this work, we further extend the idea of metamaterial-based systems developing a concept of a metahouse chamber representing a ventilated structure for broadband noise insulation. Broad stop bands originate from strong coupling between pairs of Helmholtz resonators constituting the structure. We demonstrate numerically and experimentally the averaged transmission -18 dB within the spectral range from 1500 to 16500 Hz. The sparseness of the structure together with the possibility to use optically transparent materials suggest that the chamber may be also characterized by partial optical transparency depending on the mutual position of structural elements. The obtained results are promising for development of novel noise-insulating structures advancing urban science.
