基于声辐射模态模型求解声功率灵敏度

PDF(871 KB)

振动与冲击 ›› 2009, Vol. 28 ›› Issue (8) : 109-112.

论文

基于声辐射模态模型求解声功率灵敏度

袁国清，姜哲

作者信息 +

SOLUTION OF SOUND POWER SENSITIVITY BASED ON THE THEORY OF ACOUSTIC RADIATION MODES

YUAN Guoqing,JIANG Zhe

Author information +

文章历史 +

摘要

声功率灵敏度分析揭示了结构振动引起的辐射声功率与结构设计变量之间的关系。通过利用声辐射模态模型来处理声辐射环节，利用有限元振动模型来处理结构振动环节，从而提出一种新的声功率灵敏度求解方法。在带障板的加筋板声辐射模型中，采用较常用的瑞利积分模型处理辐射环节的方法对其进行了验证。最终验证了这种方法的可行性。

Abstract

The sound power sensitivity analysis reveals the relationship between the radiation power caused by the structure vibration with the design variables of the structure. A new method for solution of sound power sensitivity is presented by using acoustic radiation modal model to deal with radiation part and using finite element vibration model to deal with vibration of the structure part. In the plate model with the infinite baffled panel, this method is verified by a common method of using Rayleigh integral model to deal with radiation part. In conclusion, it is proved that this method is feasibility.

导出引用

袁国清;姜哲. 基于声辐射模态模型求解声功率灵敏度[J]. 振动与冲击, 2009, 28(8): 109-112

YUAN Guoqing;JIANG Zhe . SOLUTION OF SOUND POWER SENSITIVITY BASED ON THE THEORY OF ACOUSTIC RADIATION MODES[J]. Journal of Vibration and Shock, 2009, 28(8): 109-112

中图分类号： TB532