用于降低超低频振动的共振柱式声学黑洞

Europhysics Letters Pub Date : 2024-04-03 DOI:10.1209/0295-5075/ad3a11

Liuxian Zhao, Yining Liu, Bin Liao, Feng Liu, Zhaoyong Sun

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引用次数: 0

摘要

本文提出了一种共振型声学黑洞（ABH）。ABH 是通过从透镜中心到外表面的梯度折射率变化实现的。本文从理论和数值上探讨了 ABH 的聚焦波和减振性能。结果表明，所设计的 ABH 能够在透镜内部实现波聚焦，并在低频时提供良好的减振效果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Resonant pillar-type acoustic black hole for ultralow frequency vibration reduction

This paper proposes a resonant type acoustic black hole (ABH). The ABH is achieved with gradient refractive index varies from the center of the lens to its outer surface. The performance of wave focusing and vibration reduction via the ABH is explored theoretically and numerically. Results show that the designed ABH can achieve wave focusing inside the lens and provide good vibration reduction at low frequency.

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Europhysics Letters

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