| 方云团,王永顺,姜光.声波在球状准周期多层介质中的传播[J].,2004,23(1):23-28,47 |
| 声波在球状准周期多层介质中的传播 |
| Acoustic wave propagation in quasiperiodic layered spherical structure |
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| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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. |
| DOI：10.11684/j.issn.1000-310X.2004.01.006 |
| 中文关键词: 准周期结构 声波传播 转移矩阵 |
| 英文关键词: Quasiperiodic structure Acoustic wave propagation Transfer matrix |
| 基金项目: |
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