周期性放置压电传感器和执行器的薄壁单对称元梁中的波传播

IF 2.3 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Physics Letters A Pub Date : 2025-05-07 DOI:10.1016/j.physleta.2025.130607

Arindam Das , Kamal K. Bera , Arnab Banerjee

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引用次数: 0

摘要

本文介绍了一种利用周期性附加压电片作为传感器和致动器，在薄壁单对称元梁上产生衰减带的新方法。周期配置允许创建亚波长衰减带。利用哈密顿原理，推导了带有压电片的单元胞的运动方程。利用传递矩阵和Bloch-Floquet定理分析了色散特性，并根据有限元结果验证了模态频率。色散图和透射光谱证实了带隙的形成，其中光束响应被抑制。参数化研究探讨了系统几何特性对衰减带的影响。结果证明了实现低频带隙的潜力，突出了其在振动衰减和声学控制方面的适用性。

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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Wave propagation in thin-walled mono-symmetric metabeam with periodically placed piezoelectric sensor and actuator

This paper introduces a novel method to generate an attenuation band in a thin-walled mono-symmetric metabeam by periodically attaching piezoelectric patches serving as sensors and actuators. The periodic configuration enables the creation of a subwavelength attenuation band. Using Hamilton's principle, equations of motion for a unit cell with piezoelectric patches are derived. The dispersion characteristics are analyzed through the transfer matrix and Bloch-Floquet theorem, while modal frequencies are validated against finite-element results. Dispersion plots and the transmittance spectrum confirm the formation of band gaps where beam responses are suppressed. A parametric study explores the influence of the geometric properties of the system on attenuation bands. The results demonstrate the potential for achieving a low-frequency band gap, highlighting its applicability in vibration attenuation and acoustic control.

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来源期刊

Physics Letters A 物理-物理：综合

CiteScore

5.10

自引率

3.80%

发文量

493

审稿时长

30 days

期刊介绍： Physics Letters A offers an exciting publication outlet for novel and frontier physics. It encourages the submission of new research on: condensed matter physics, theoretical physics, nonlinear science, statistical physics, mathematical and computational physics, general and cross-disciplinary physics (including foundations), atomic, molecular and cluster physics, plasma and fluid physics, optical physics, biological physics and nanoscience. No articles on High Energy and Nuclear Physics are published in Physics Letters A. The journal''s high standard and wide dissemination ensures a broad readership amongst the physics community. Rapid publication times and flexible length restrictions give Physics Letters A the edge over other journals in the field.