Reconfigurable Elastic Metamaterials: Engineering Dispersion with Beyond Nearest Neighbors
Reconfigurable Elastic Metamaterials: Engineering Dispersion with Beyond Nearest Neighbors
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DOI：
10.1103/physrevapplied.19.044061
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发表时间：
2023-04-21
影响因子：
4.6
通讯作者：
Starkey，T. A.
中科院分区：
文献类型：
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作者：
Chaplain，G. J.;Hooper，I. R.;Starkey，T. A.
我们设计、模拟并通过实验表征具有超最近邻 (BNN) 耦合的可重构弹性超材料。该结构由流行的英国模型构建系统 Meccano 组成，支持相速度和群速度方向相反的后向波。我们通过实验验证了三种不同的配置，并通过声学推断了它们的空间振动谱。
We design, simulate, and experimentally characterize a reconfigurable elastic metamaterial with beyond-nearest-neighbor (BNN) coupling. The structure is composed from the popular British model-construction system Meccano and supports backward waves with opposite directions of phase and group velocities. We experimentally verify three distinct configurations and acoustically infer their spatial vibration spectra.