| Characteristics of Band Gap and Low-Frequency Wave Propagation of Mechanically Tunable Phononic Crystals With Scatterers in Periodic Porous Elastomeric Matrices | |
Ning Shaowu1; Chu Dongyang1; Yang Fengyuan1; Jiang H(姜恒)2,3 ; Liu Zhanli1; Zhuang Zhuo1
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| Corresponding Author | Jiang, Heng([email protected]) ; Liu, Zhanli([email protected]) |
| Source Publication | JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME
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| 2021-05-01 | |
| Volume | 88Issue:5Pages:14 |
| ISSN | 0021-8936 |
| Abstract | The characteristics of passive responses and fixed band gaps of phononic crystals (PnCs) limit their possible applications. For overcoming this shortcoming, a class of tunable PnCs comprised multiple scatterers and soft periodic porous elastomeric matrices are designed to manipulate the band structures and directionality of wave propagation through the applied deformation. During deformation, some tunable factors such as the coupling effect of scatterer and hole in the matrix, geometric and material nonlinearities, and the rearrangement of scatterer are activated by deformation to tune the dynamic responses of PnCs. The roles of these tunable factors in the manipulation of dynamic responses of PnCs are investigated in detail. The numerical results indicate that the tunability of the dynamic characteristic of PnCs is the result of the comprehensive function of these tunable factors mentioned earlier. The strong coupling effect between the hole in the matrix and the scatterer contributes to the formation of band gaps. The geometric nonlinearity of matrix and rearrangement of scatterer induced by deformation can simultaneously tune the band gaps and the directionality of wave propagation. However, the matrix's material nonlinearity only adjusts the band gaps of PnCs and does not affect the directionality of wave propagation in them. The research extends our understanding of the formation mechanism of band gaps of PnCs and provides an excellent opportunity for the design of the optimized tunable PnCs and acoustic metamaterials (AMMs). |
| Keyword | mechanically tunable phononic crystals scatterer periodic porous elastomeric matrix band structure directionality of wave propagation geometric and material nonlinearities wave propagation |
| DOI | 10.1115/1.4049516 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000636827800001 |
| WOS Research Area | Mechanics |
| WOS Subject | Mechanics |
| Funding Project | Science Challenge Project[TZ2018002] ; National Natural Science Foundation of China[11972205] ; National Natural Science Foundation of China[11722218] ; National Key Research Development Program of China[2017YFB0702003] ; Tsinghua University Initiative Scientific Research Program |
| Funding Organization | Science Challenge Project ; National Natural Science Foundation of China ; National Key Research Development Program of China ; Tsinghua University Initiative Scientific Research Program |
| Classification | 一类/力学重要期刊 |
| Ranking | 1 |
| Contributor | Jiang, Heng ; Liu, Zhanli |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/86438 |
| Collection | 微重力重点实验室 |
| Affiliation | 1.Tsinghua Univ, Sch Aerosp Engn, Appl Mech Lab, Beijing 100084, Peoples R China; 2.Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Ning Shaowu,Chu Dongyang,Yang Fengyuan,et al. Characteristics of Band Gap and Low-Frequency Wave Propagation of Mechanically Tunable Phononic Crystals With Scatterers in Periodic Porous Elastomeric Matrices[J]. JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME,2021,88,5,:14.Rp_Au:Jiang, Heng, Liu, Zhanli |
| APA | Ning Shaowu,Chu Dongyang,Yang Fengyuan,姜恒,Liu Zhanli,&Zhuang Zhuo.(2021).Characteristics of Band Gap and Low-Frequency Wave Propagation of Mechanically Tunable Phononic Crystals With Scatterers in Periodic Porous Elastomeric Matrices.JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME,88(5),14. |
| MLA | Ning Shaowu,et al."Characteristics of Band Gap and Low-Frequency Wave Propagation of Mechanically Tunable Phononic Crystals With Scatterers in Periodic Porous Elastomeric Matrices".JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME 88.5(2021):14. |
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| Jp2021F180.pdf（2351KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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