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Fractal Acoustic Metamaterials with Subwavelength and Broadband Sound Insulation
Liu Y(刘宇); Chen M(陈猛); Xu WS(徐文帅); Yang T(杨洮); Pei DL(裴东亮); Jiang H(姜恒); Wang YR(王育人)
Source PublicationSHOCK AND VIBRATION
2019
Pages7
ISSN1070-9622
Abstract

We construct new fractal acoustic metamaterials by coiling up space, which can allow subwavelength-scale and broadband sound insulation to be achieved. Using the finite element method and the S-parameter retrieval method, the band structures, the effective parameters, and the transmission losses of these acoustic metamaterials with different fractal orders are researched individually. The results illustrate that it is easy to form low-frequency bandgaps using these materials and thus achieve subwavelength-scale sound control. As the number of fractal orders increase, more bandgaps appear. In particular, in the X direction of the acoustic metamaterial lattice, more of these wide bandgaps appear in different frequency ranges, thus providing broadband sound insulation and showing promise for use in engineering applications.

DOI10.1155/2019/1894073
Indexed BySCI ; EI
Language英语
WOS IDWOS:000472911500001
WOS Research AreaAcoustics ; Engineering ; Mechanics
WOS SubjectAcoustics ; Engineering, Mechanical ; Mechanics
Funding ProjectNational Natural Science Foundation of China[11602269] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040301] ; Research Program of Beijing[Z161100002616034] ; Research Program of Beijing[Z171100000817010]
Funding OrganizationNational Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Research Program of Beijing
ClassificationQ3
Ranking1
ContributorChen, Meng
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/79361
Collection国家微重力实验室
Recommended Citation
GB/T 7714
Liu Y,Chen M,Xu WS,et al. Fractal Acoustic Metamaterials with Subwavelength and Broadband Sound Insulation[J]. SHOCK AND VIBRATION,2019:7.
APA Liu Y.,Chen M.,Xu WS.,Yang T.,Pei DL.,...&Wang YR.(2019).Fractal Acoustic Metamaterials with Subwavelength and Broadband Sound Insulation.SHOCK AND VIBRATION,7.
MLA Liu Y,et al."Fractal Acoustic Metamaterials with Subwavelength and Broadband Sound Insulation".SHOCK AND VIBRATION (2019):7.
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