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Multiband Elastic Waveguide Cloak in Thin Plates
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DOI：10.1002/adem.202300025.png)
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Vibration in thin plates is a common issue in structural engineering that can significantly impact the performance of structures. One crucial objective is to control vibration intensity. Metamaterials offer a promising solution to this challenge. Herein, a multiband elastic waveguide cloak that uses metamaterials and does not require active components or complex designs is introduced. By converting flexural waves to waveguide-trapped waves, a cloaking region with negligible vibration can be created. Herein, independent mode conversion channels for elastic waves, which could lead to new approaches to modulating elastic waves, are discovered. The experiment results are in excellent agreement with the numerical simulation results and demonstrate a waveguide cloaking effect. This design has a compact structure and exhibits multiband performance, making it highly suitable for vibration control in various scenarios, including the aerospace industry, bridge engineering, and shock-absorbing platforms.
Keyword:
cloak
elastic metamaterials
vibration suppression
期刊
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3.3
论文数:
9.3K
被引数:
2.2W
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