Single-Negative Properties based on the Bandgaps of one-dimensional Phononic Crystal

被引：2
|
作者：
Xu, Weikai [1 ]
Wang, Wei [2 ]
机构：
[1] Shenyang Aerosp Univ, Key Lab Liaoning Prov Composite Struct Anal Aeroc, Sch Aerosp Engn, Shenyang 110136, Peoples R China
[2] Shenyang Jianzhu Univ, Sch Civil Engn, Shenyang 110168, Peoples R China
来源：
VIBRATION, STRUCTURAL ENGINEERING AND MEASUREMENT I, PTS 1-3 | 2012年 / 105-107卷
关键词：
Phononic Crystal; Bandgap; Single-Negative Material; Effective Medium Parameter; DISPERSIVE ELASTODYNAMICS; BANDED MATERIALS; REFRACTION; INDEX;
D O I：
10.4028/www.scientific.net/AMM.105-107.279
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Phononic Crystals (PCs) have important potential application in engineering by the properties of bandgaps. In the paper, the bandgap characteristic of one-dimensional PCs is attributed to the results of Single-Negative (SN) properties, e.g. negative modulus or negative density. The effective parameters of the ID PCs were predicted by the equivalent layer concept with considering viscous damping, and the results showed that during the frequency regions of the bandgaps, the negative parameters appeared. This will be a reference for the design of acoustic negative refraction metamaterials.
引用
收藏
页码：279 / +
页数：2
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