摘要
本文研究了平面波在一维准周期声子晶体中的传播,引进局部化因子的概念研究了结构的带隙特性和局部化特征,利用Wolf方法给出了局部化因子的表达式并用传递矩阵法计算了局部化因子,考查了平面波垂直入射和斜入射的情形,并与相应的周期结构及随机失谐结构进行了比较。
The propagation of plane wave in one dimensional quasi-periodic structure is studied by employing the conception of the localization factor. The properties of band gaps and the localization phenomenon are studied. The localization factor is expressed by Wolf＇s algorithm and calculated by the transfer matrix method. Normal and oblique incidence are addressed and compared to the corresponding perfect phononic crystal and randomly disordered one.
出处
《应用声学》
CSCD
北大核心
2008年第1期69-73,共5页
Journal of Applied Acoustics
基金
国家自然科学基金资助(10632020)
