Square concentrator with intelligent circuit control of elastic wave metamaterial plate

IF 3.4 2区物理与天体物理 Q1 ACOUSTICS

Applied Acoustics Pub Date : 2025-09-29 DOI:10.1016/j.apacoust.2025.111098

Li Ning , P.H. Wen , Hui Zheng , C.W. Lim

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引用次数: 0

Abstract

In this work, we propose and fabricate a novel square intelligent concentrator that is able to focus elastic waves in a thin plate, with the potential to efficiently collect wave energy. Approximate anisotropic parameters of the plate configuration are derived through the space transformation method. An intelligent circuit control system is integrated into the device to enhance the functionality of the concentrator, and it allows for real-time detection of incident waves as well as flexible adjustment of material parameters. Simulation and experiment result demonstrates that the configuration shows a tendency of energy concentration, but the performance is not obvious in the frequency range from 800 Hz to 1200 Hz. However, the effective frequency region of the concentrator is from 1200 Hz to 1700 Hz, and the energy concentration performance can be greatly improved by integrating the intelligent control system. This work emphasizes the potential of the proposed square intelligent concentrator in harnessing and manipulating elastic waves for various applications. The ability to dynamically adjust the material parameters, coupled with efficient wave collection, makes this device a promising candidate for wave energy harvesting and other related fields.

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弹性波超材料板智能电路控制方形聚光器

在这项工作中，我们提出并制造了一种新颖的方形智能聚光器，它能够将弹性波聚焦在薄板上，具有有效收集波能的潜力。通过空间变换方法，导出了平板结构的近似各向异性参数。智能电路控制系统集成到设备中，以增强浓缩器的功能，并允许实时检测入射波以及灵活调整材料参数。仿真和实验结果表明，该结构有能量集中的趋势，但在800hz ~ 1200hz范围内性能不明显。而聚光器的有效频率范围为1200hz ~ 1700hz，通过集成智能控制系统可以大大提高能量集中性能。这项工作强调了所提出的方形智能集中器在各种应用中利用和操纵弹性波的潜力。动态调整材料参数的能力，加上高效的波收集，使该装置成为波能收集和其他相关领域的有希望的候选者。

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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来源期刊

Applied Acoustics 物理-声学

CiteScore

7.40

自引率

11.80%

发文量

618

审稿时长

7.5 months

期刊介绍： Since its launch in 1968, Applied Acoustics has been publishing high quality research papers providing state-of-the-art coverage of research findings for engineers and scientists involved in applications of acoustics in the widest sense. Applied Acoustics looks not only at recent developments in the understanding of acoustics but also at ways of exploiting that understanding. The Journal aims to encourage the exchange of practical experience through publication and in so doing creates a fund of technological information that can be used for solving related problems. The presentation of information in graphical or tabular form is especially encouraged. If a report of a mathematical development is a necessary part of a paper it is important to ensure that it is there only as an integral part of a practical solution to a problem and is supported by data. Applied Acoustics encourages the exchange of practical experience in the following ways: • Complete Papers • Short Technical Notes • Review Articles; and thereby provides a wealth of technological information that can be used to solve related problems. Manuscripts that address all fields of applications of acoustics ranging from medicine and NDT to the environment and buildings are welcome.