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Resonance-coupling effect on broad band gap formation in locally resonant sonic metamaterials
Chen M(陈猛); Meng D(蒙丹); Zhang H(张翰); Jiang H(姜恒); Wang YR(王育人); Jiang,H; Wang, YR (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China.
Source PublicationWAVE MOTION
2016
Volume63Pages:111-119
ISSN0165-2125
Abstract

To broaden the resonant band gap in locally resonant sonic metamaterials (LRSMs), coupled resonance was introduced through a stacked structure. Stacked-structure LRSMs are formed by orthogonally stacking square coated-steel rods and embedding them layer by layer in an epoxy matrix. Calculations suggest that stacked-structure LRSMs have wider band gaps, which are adaptable to all types of vibration polarizations. Using vibration modes and a mass spring model, strong coupling was confirmed between the orthogonal resonances at the upper edge of the band gap, providing a wider bandwidth. Moreover, the effects of the rod width, thickness of coating material and viscoelastic damping on the band gap were investigated. The close relationship of the bandwidth with the strength of coupling between resonances was thereby demonstrated. (C) 2016 Elsevier B.V. All rights reserved.

KeywordLocally Resonant Sonic Metamaterials Stacked Structure Band Gap Resonance-coupling Effect Finite Element Methods
DOI10.1016/j.wavemoti.2016.02.003
Indexed BySCI ; EI
Language英语
WOS IDWOS:000374354100009
WOS KeywordUnderwater Sound-absorption ; Phononic Crystals ; Modes
WOS Research AreaAcoustics ; Mechanics ; Physics, Multidisciplinary
Funding OrganizationWe acknowledge project supported by the National Natural Science Foundation of China (Grant Nos. 11202211 and 11272315) and the opening project of State Key Laboratory of Explosion Science and Technology (Beijing Institute of Technology). The opening project number is KFJJ14-5M.
DepartmentNML空间材料物理力学
Classification二类
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/71951
Collection国家微重力实验室
Corresponding AuthorJiang,H; Wang, YR (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Chen M,Meng D,Zhang H,et al. Resonance-coupling effect on broad band gap formation in locally resonant sonic metamaterials[J]. WAVE MOTION,2016,63:111-119.
APA Chen M,Meng D,Zhang H,Jiang H,Wang YR,&Jiang,H; Wang, YR .(2016).Resonance-coupling effect on broad band gap formation in locally resonant sonic metamaterials.WAVE MOTION,63,111-119.
MLA Chen M,et al."Resonance-coupling effect on broad band gap formation in locally resonant sonic metamaterials".WAVE MOTION 63(2016):111-119.
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