通过气动致动实现带隙可调的软声波晶体

IF 3.4 3区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Advanced Engineering Materials Pub Date : 2024-11-19 DOI:10.1002/adem.202401913
Cheng Yi, Xiaohua Liu, Can Xiao, Jian Liu, Ning Chen
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引用次数: 0

摘要

气动操纵具有成本低、设计轻便、响应快、易于集成等优点。然而,它在声子晶体领域的应用仍然有限。受气动软机器人的启发,本文提出了一种方形点阵的气动软声子晶体,散射体内包含四个气动致动器。通过控制气压,可以有效地打开和关闭带隙。采用有限元方法研究了气动软声子晶体在不同气压下的变形和带隙。此外,还参数化地研究了散射体旋转角度对声子晶体带隙演化的影响。结果表明,改变散射体的体积和旋转角度可以实现带隙的打开、关闭和调谐。所提出的声子晶体具有明显的实际应用价值,为软调谐声学器件的设计提供了重要的见解。
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Soft Phononic Crystal with Tunable Bandgap Through Pneumatic Actuation

Pneumatic manipulation has the advantages of low cost, lightweight design, fast response, and ease of integration. However, its application in the field of phononic crystals remains limited. Inspired by pneumatic soft robots, this article proposes a pneumatic soft phononic crystal arranged in a square lattice, incorporating four pneumatic actuators within the scatterer. By manipulating air pressure, the bandgap can be effectively opened and closed. The finite element analysis is employed to examine the deformation and bandgaps of the pneumatic soft phononic crystal under varying air pressures. Moreover, the effect of the scatterer's rotation angle on the bandgap evolution in the phononic crystal is parametrically investigated. The results show that varying both the volume and the rotation angle of the scatterer can achieve bandgap opening, closing, and tuning. The proposed phononic crystal presents obvious practical applications and provides important insights for the design of soft-tunable acoustic devices.

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来源期刊
Advanced Engineering Materials
Advanced Engineering Materials 工程技术-材料科学:综合
CiteScore
5.70
自引率
5.60%
发文量
544
审稿时长
1.7 months
期刊介绍: Advanced Engineering Materials is the membership journal of three leading European Materials Societies - German Materials Society/DGM, - French Materials Society/SF2M, - Swiss Materials Federation/SVMT.
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