摘要
采用传递矩阵方法对水下多层均匀复合结构的吸声特性进行了研究,提出了声波以一定角度从流体向多层均匀媒质斜入射时吸声特性分析的一般模型,导出了声波斜入射下完全浸入水中的任意层媒质的声吸收系数的解析表达式。给出了一些典型结构的吸声系数的仿真结果。
The sound absorption of underwater multi-layered composite structure is discussed using transmission matrix and a general model on sound absorption from a multi-layered by a certain angular is proposed. Analytical expression for absorption coefficients of an oblique incidence on multi-layered are derived. Numerical and emulational results of sound absorption coefficient from some typical structures are presented.
出处
《噪声与振动控制》
CSCD
北大核心
2006年第2期58-61,共4页
Noise and Vibration Control
关键词
声学
吸声特性
多层均匀复合结构
斜入射
acoustics
absorption characteristics
multi-layered compcxsite structure
oblique incidence
