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相关实验视频

Updated: Jan 10, 2026

Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing
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具有实时可编程性的组合非对称声学元材料.

Melanie R Keogh1, Osama R Bilal1

  • 1School of Mechanical, Aerospace, and Manufacturing Engineering, University of Connecticut, Storrs, CT 06269.

Proceedings of the National Academy of Sciences of the United States of America
|November 24, 2025
PubMed
概括

这项研究引入了一个新的可编程元材料框架,使用不对称的支柱,可以实时重新配置以控制声波. 这种可扩展的方法使得先进的声学设备可以按需操纵声音.

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科学领域:

  • 声学元材料是一种声学元材料.
  • 材料科学 材料科学 材料科学
  • 波浪操纵 波浪操纵是一种

背景情况:

  • 超材料具有独特的特性,但通常在制造后固定.
  • 超材料的按需调整性仍然是一个重大挑战.
  • 现有的可调节的超材料缺乏可扩展性和实时可编程性.

研究的目的:

  • 引入一个实时可编程的,用于声波操纵的组合元材料框架.
  • 为了证明不对称的柱子具有可控制的角度方向的实用性.
  • 探索先进的声学设备的可扩展调机制.

主要方法:

  • 设计了一个超材料框架,使用具有可调角方向的不对称柱子.
  • 使用单独的电机来实现单元级别的可编程性,以及用于域级别控制的轮.
  • 实施了混合动力方法,将电机和轮结合起来,以实现平衡的多功能性和简单性.
  • 研究波衰减,局部化和拓绝缘现象.

主要成果:

  • 通过柱子重定向来证明声波操纵.
  • 实现波衰减,局部化和拓绝缘.
  • 将设计扩展到多个领域和超级细胞,大大增加了设计可能性.
  • 在单元细胞和域级别上展示了实时可编程性.

结论:

  • 拟议的框架提供可扩展的声学特性,按需可重编程的声学特性.
  • 这种方法促进了多功能和先进的声学设备的开发.
  • 设计的组合性质允许大量的配置.
关键词:
声学元材料是一种声学元材料.有效物质是指活性物质.组合设计是一种组合设计.声波是一种声音波.对称性对称性对称性对称性对称性对称性

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