Investigation on the Band Gap and Negative Properties of Concentric Ring Acoustic Metamaterial | |
Chen M(陈猛); Meng D(蒙丹); Jiang H(姜恒)![]() ![]() | |
刊名 | SHOCK AND VIBRATION
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2018 | |
页码 | 10.1155/2018/1369858 |
ISSN号 | 1070-9622 |
DOI | 10.1155/2018/1369858 |
文献子类 | Article |
英文摘要 | The acoustic characteristics of 2D single-oscillator, dual-oscillator, and triple-oscillator acoustic metamaterials were investigated based on concentric ring structures using the finite element method. For the single-oscillator, dual-oscillator, and triple-oscillator models investigated here, the dipolar resonances of the scatterer always induce negative effective mass density, preventing waves from propagating in the structure, thus forming the band gap. As the number of oscillators increases, relative movements between the oscillators generate coupling effect; this increases the number of dipolar resonance modes, causes negative effective mass density in more frequency ranges, and increases the number of band gaps. It can be seen that the number of oscillators in the cell is closely related to the number of band gaps due to the coupling effect, when the filling rate is of a certain value. |
分类号 | 二类 |
WOS关键词 | Phononic Crystals ; Mass Density ; Composites ; Scattering ; Waves |
WOS研究方向 | Acoustics ; Engineering ; Mechanics |
语种 | 英语 |
WOS记录号 | WOS:000424359100001 |
资助机构 | National Natural Science Foundation of China(11202211 ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB22040301) ; Research Program of Beijing(Z161100002616034 ; 11602269) ; Z171100000817010) |
内容类型 | 期刊论文 |
源URL | [http://dspace.imech.ac.cn/handle/311007/77461] ![]() |
专题 | 力学研究所_国家微重力实验室 |
推荐引用方式 GB/T 7714 | Chen M,Meng D,Jiang H,et al. Investigation on the Band Gap and Negative Properties of Concentric Ring Acoustic Metamaterial[J]. SHOCK AND VIBRATION,2018:10.1155/2018/1369858. |
APA | 陈猛,蒙丹,姜恒,&王育人.(2018).Investigation on the Band Gap and Negative Properties of Concentric Ring Acoustic Metamaterial.SHOCK AND VIBRATION,10.1155/2018/1369858. |
MLA | 陈猛,et al."Investigation on the Band Gap and Negative Properties of Concentric Ring Acoustic Metamaterial".SHOCK AND VIBRATION (2018):10.1155/2018/1369858. |
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