Low-frequency band gap and wave attenuation mechanisms of novel hybrid chiral metamaterials

IF 2.6 4区 物理与天体物理 Q2 PHYSICS, APPLIED International Journal of Modern Physics B Pub Date : 2023-11-02 DOI:10.1142/s0217979224504034
Shu-Liang Cheng, Hong-Yun Yang, Xiu-Hong Du, Qian Ding, Qun Yan, Yong-Tao Sun, Ya-Jun Xin, Liang Wan, Jin-Xin Xu
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Abstract

Based on the hexagonal honeycomb structure and the tri-ligament chiral honeycomb structure, this paper proposes a hybrid material structure with low-frequency elastic wave suppression below 100[Formula: see text]Hz. Based on the finite element method and Bloch’s theorem, the energy band structure was calculated, and the formation of the band gap and the wave-propagation properties of the structure were carefully studied, the wave attenuation performance of the composite structure was simulated, and the influence of material properties and geometric parameters on the width and position of the band-gap distribution was discussed. The results show that the structure can generate a good band gap in the low-frequency range of 100[Formula: see text]Hz, and the wave propagation is suppressed obviously. Demonstrating its potential in practical applications, the research in this paper provides a theoretical basis for the manufacture of low-frequency vibration damping equipment and instruments, and provides a scheme for the design of metamaterials with low-frequency band gaps.
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新型杂化手性超材料的低频带隙和波衰减机理
本文在六边形蜂窝结构和三韧带手性蜂窝结构的基础上,提出了一种抑制100 Hz以下低频弹性波的混合材料结构[公式:见文]。基于有限元法和Bloch定理,计算了能带结构,仔细研究了带隙的形成和结构的波传播特性,模拟了复合材料结构的波衰减性能,讨论了材料性能和几何参数对带隙分布宽度和位置的影响。结果表明,该结构能在100 Hz的低频范围内产生良好的带隙,波的传播受到明显抑制。本文的研究显示了其在实际应用中的潜力,为低频减振设备和仪器的制造提供了理论依据,并为具有低频带隙的超材料的设计提供了方案。
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来源期刊
International Journal of Modern Physics B
International Journal of Modern Physics B 物理-物理:凝聚态物理
CiteScore
3.70
自引率
11.80%
发文量
417
审稿时长
3.1 months
期刊介绍: Launched in 1987, the International Journal of Modern Physics B covers the most important aspects and the latest developments in Condensed Matter Physics, Statistical Physics, as well as Atomic, Molecular and Optical Physics. A strong emphasis is placed on topics of current interest, such as cold atoms and molecules, new topological materials and phases, and novel low dimensional materials. One unique feature of this journal is its review section which contains articles with permanent research value besides the state-of-the-art research work in the relevant subject areas.
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