期刊
APPLIED PHYSICS LETTERS
卷 101, 期 24, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4770370
关键词
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资金
- Agency for Science, Technology and Research (A*STAR, Singapore)
- AFOSR [FA9550-10-1-0061]
A dual-resonator microstructure design is proposed for acoustic metamaterials to achieve broadband effective mass negativity. We demonstrate the advantage of acoustic wave attenuation over a wider frequency spectrum as compared to the narrow band gap of a single-resonator design. We explicitly confirm the effect of negative effective mass density by analysis of wave propagation using finite element simulations. Examples of practical application like vibration isolation and blast wave mitigation are presented and discussed. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4770370]
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