摘要
运用转移矩阵方法研究了声波在准周期球形多层介质中的传播,与周期性结构比较它具有不 同结构的通带和禁带,且随介质层数的增加声波衰减速度变慢。声波透射系数还随介质厚度的改变 发生周期性的变化。
Radiation from acoustic source located inside quasiperiodic layered structures is studied using the transfer matrix method. In contrast to the periodically layered cases the propagation in the quasiperiodic systems has different band structures and decreases slower than in the periodic systems with the number of layers. In addition the transmission coefficients periodically change with the variation of media thickness.
出处
《应用声学》
CSCD
北大核心
2004年第1期23-28,47,共7页
Journal of Applied Acoustics
