首页|Layered metastructure containing freely-designed local resonators for wave attenuation

Layered metastructure containing freely-designed local resonators for wave attenuation

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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.

Layered metastructureLocal resonatorWave attenuation

Yu Li、Huguang He、Jiang Feng、Hailong Chen、Fengnian Jin、Hualin Fan

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State Key Laboratory for Disaster Prevention & Mitigation of Explosion & Impact,Army Engineering University of PLA,Nanjing 210007,China

Rocket Force University of Engineering,Xi'an 710025,China

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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National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaSystematic Project of Guangxi Key Laboratory of Disaster Prevention and Engineering SafetyNatural Science Foundation of Jiangsu Province of ChinaScience and Technology Project of Jiangsu Province of China

U20A20286119721842021ZDK006BK20201286BE2020716

2024

10.1016/j.dt.2023.03.026

防务技术
中国兵工学会

防务技术

CSTPCD
影响因子：0.358
ISSN：2214-9147
年,卷(期)：2024.32(2)
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