Comparison of the Acoustic Radiation Characteristics of Simply Supported Rectangular Plates in the Air and in the Water

doi:10.3969/j.issn.1006-1335.2016.03.003

Abstract

摘要：

研究比较简支矩形板在空气中与水中声辐射特性参数，分别建立结构在空气中与水中结构振动方程，并利用Rayleigh积分公式，表示结构表面声压，获得结构表面振速的求解方程。进一步由振动模态正交性和坐标变换，将声辐射阻抗化为二重积分形式，从而确定结构振动模态系数，获得结构声辐射特性参数。求取简支矩形薄板在空气中和水中辐射声功率、均方振速和声辐射效率，并对其进行对比。研究结果可为各类板结构振动与噪声控制提供理论参考。

关键词: 声学, 声辐射阻抗, 声辐射特性参数, 介质, 矩形板

CLC Number:

TB132

朱拥勇，刘宝. 简支矩形板在空气与水中声辐射特性比较[J]. 噪声与振动控制, 2016, 36(3): 11-15.

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Comparison of the Acoustic Radiation Characteristics of Simply Supported Rectangular Plates in the Air and in the Water

简支矩形板在空气与水中声辐射特性比较

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