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Reflected flexural wave manipulation based on ultra-thin elastic metasurface

  • Northwestern Polytechnical University Xian

科研成果: 书/报告/会议事项章节会议稿件同行评审

2 引用 (Scopus)

摘要

In this paper, we propose a new type of ultra-thin elastic metasurface (UEM) consisting of mass-spring resonant stubs to manipulate flexural wave in a deep subwavelength (the metasurface thickness is 1/16 of the wavelength). The designed resonant stubs composed of lead and rubber blocks are presented to induce strong locally resonances. The full phase control for reflected flexural wave could be obtained by choosing proper natural frequencies of the resonant stubs. Then, the UEM is theoretically designed to achieve the abnormal reflection of the incident flexural wave based on the generalized Snell's law (GSL). The results obtained by finite element simulation validate the effectiveness of abnormal reflecting functionality of UEM. The present study demonstrates that the designed elastic metasurface can pave the way for flexural wave manipulation, and it has the great potential in the engineering fields of vibration control, nondestructive evaluation and energy harvesting.

源语言英语
主期刊名Proceedings of the 2020 15th Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2020
出版商Institute of Electrical and Electronics Engineers Inc.
198-201
页数4
ISBN(电子版)9781665403153
DOI
出版状态已出版 - 16 4月 2021
活动15th Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2020 - Zhengzhou, Henan Province, 中国
期限: 16 4月 202119 4月 2021

出版系列

姓名Proceedings of the 2020 15th Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2020

会议

会议15th Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2020
国家/地区中国
Zhengzhou, Henan Province
时期16/04/2119/04/21

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