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The Effect of Geometrical Parameters on Resonance Characteristics of Acoustic Metamaterials with Negative Effective Modulus
Joint Authors
Hao, Limei
Yan, Xiao-Le
Men, Mei-Ling
Chen, Zhi
Source
Advances in Condensed Matter Physics
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-04-04
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
There has been an explosion of interest in acoustic metamaterial in the last ten years.
The tunable negative acoustic metamaterial is an important issue for designing metamaterials.
The acoustic metamaterial is restricted by the narrow bandgap of sound waves for the local resonance of metamaterial unit cells.
By shifting the sizes of the unit cell, the acoustic metamaterial could potentially overcome the limit of the narrow resonance frequency.
In this research, we focus on the resonant behavior of split hollow sphere (SHS) in the waveguide.
Firstly, we analyze the resonance characteristics of SHS and get an analytical formula for the effect of geometrical parameters on the resonance frequency.
Furthermore, the resonance frequency of SHS is verified with finite-element method analysis based on COMSOL Multiphysics simulation.
The results are in good agreement with theory model.
It is observed that there is a blue shift of the resonance frequency with the gradual increase of the neck radius of SHS, a V-type response curve with the increase of inner radius of SHS, and a red shift with the increase of outer radius of SHS.
Using the method of estimate of resonance, we could get a precisely controllable unit structure with negative effective modulus and offer a way to optimize the realization of double negative acoustic metamaterial.
American Psychological Association (APA)
Yan, Xiao-Le& Hao, Limei& Men, Mei-Ling& Chen, Zhi. 2018. The Effect of Geometrical Parameters on Resonance Characteristics of Acoustic Metamaterials with Negative Effective Modulus. Advances in Condensed Matter Physics،Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1117229
Modern Language Association (MLA)
Yan, Xiao-Le…[et al.]. The Effect of Geometrical Parameters on Resonance Characteristics of Acoustic Metamaterials with Negative Effective Modulus. Advances in Condensed Matter Physics No. 2018 (2018), pp.1-8.
https://search.emarefa.net/detail/BIM-1117229
American Medical Association (AMA)
Yan, Xiao-Le& Hao, Limei& Men, Mei-Ling& Chen, Zhi. The Effect of Geometrical Parameters on Resonance Characteristics of Acoustic Metamaterials with Negative Effective Modulus. Advances in Condensed Matter Physics. 2018. Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1117229
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1117229