防务技术2024，Vol.32Issue(2) ：23-31.DOI:10.1016/j.dt.2023.03.026

Layered metastructure containing freely-designed local resonators for wave attenuation

Yu Li Huguang He Jiang Feng Hailong Chen Fengnian Jin Hualin Fan
防务技术2024，Vol.32Issue(2) ：23-31.DOI:10.1016/j.dt.2023.03.026
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  • 维普
  • 万方数据

Layered metastructure containing freely-designed local resonators for wave attenuation

Yu Li 1Huguang He 1Jiang Feng 2Hailong Chen 1Fengnian Jin 1Hualin Fan3
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作者信息

  • 1. State Key Laboratory for Disaster Prevention & Mitigation of Explosion & Impact,Army Engineering University of PLA,Nanjing 210007,China
  • 2. Rocket Force University of Engineering,Xi'an 710025,China
  • 3. Henan International Joint Laboratory of Dynamics of Impact and Disaster of Engineering Structures,Department of Civil Engineering,Nanyang Institute of Technology,Nanyang 473004,China;Guangxi Key Laboratory of Disaster Prevention and Engineering Safety,and Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education,College of Civil Engineering and Architecture,Guangxi University,Nanning 530004,China;Research Center of Lightweight Structures and Intelligent Manufacturing,State Key Lab
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Abstract

Combining periodic layered structure with three-dimensional cylindrical local resonators,a hybrid metastructure with improved wave isolation ability was designed and investigated through theoretical and numerical approaches.The metastructure is composed of periodic rubber layers and concrete layers embedded with three-dimensional resonators,which can be freely designed with multi local resonant frequencies to attenuate vibrations at required frequencies and widen the attenuation bandgap.The metastructure can also effectively attenuate seismic responses.Compared with layered rubber-based structures,the metastructure has more excellent wave attenuation effects with greater attenuation and wider bandgap.

Key words

Layered metastructure/Local resonator/Wave attenuation

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基金项目

National Natural Science Foundation of China(U20A20286)

National Natural Science Foundation of China(11972184)

Systematic Project of Guangxi Key Laboratory of Disaster Prevention and Engineering Safety(2021ZDK006)

Natural Science Foundation of Jiangsu Province of China(BK20201286)

Science and Technology Project of Jiangsu Province of China(BE2020716)

出版年

2024
防务技术
中国兵工学会

防务技术

CSTPCD
影响因子：0.358
ISSN：2214-9147
参考文献量24
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