Fractal Acoustic Metamaterials with Subwavelength and Broadband Sound Insulation
Joint Authors
Jiang, Heng
Chen, Meng
Liu, Yu
Xu, Wenshuai
Yang, Tao
Pei, Dongliang
Wang, Yuren
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-06-12
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
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 ΓX 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.
American Psychological Association (APA)
Liu, Yu& Chen, Meng& Xu, Wenshuai& Yang, Tao& Pei, Dongliang& Jiang, Heng…[et al.]. 2019. Fractal Acoustic Metamaterials with Subwavelength and Broadband Sound Insulation. Shock and Vibration،Vol. 2019, no. 2019, pp.1-7.
https://search.emarefa.net/detail/BIM-1210990
Modern Language Association (MLA)
Liu, Yu…[et al.]. Fractal Acoustic Metamaterials with Subwavelength and Broadband Sound Insulation. Shock and Vibration No. 2019 (2019), pp.1-7.
https://search.emarefa.net/detail/BIM-1210990
American Medical Association (AMA)
Liu, Yu& Chen, Meng& Xu, Wenshuai& Yang, Tao& Pei, Dongliang& Jiang, Heng…[et al.]. Fractal Acoustic Metamaterials with Subwavelength and Broadband Sound Insulation. Shock and Vibration. 2019. Vol. 2019, no. 2019, pp.1-7.
https://search.emarefa.net/detail/BIM-1210990
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1210990