| 用高频近似计算结构体辐射声场 |
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| 引用本文： | 汪鸿振,冯革楠.用高频近似计算结构体辐射声场[J].声学技术,1997,16(1):1-3. |
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| 作者姓名： | 汪鸿振 冯革楠 |
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| 作者单位： | 上海交通大学振动冲击噪声研究所 |
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| 摘 要： | 本文对高频段结构体辐射场场用高频近似即所谓平面波近似方法来计算。该方法不但避免了通常所用的边界元法计算结构体辐射声场出现的３个问题：１．不光滑点Ｃ（Ｐ）因子计算，（２）奇异积分，（３）特征频率处理的非唯一性，而且该方法精度较高，计算量小，于微机计算。
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| 关 键 词： | 高频近似 辐射声场 结构体辐射声场 |
| 收稿时间： | 1995/11/1 0:00:00 |
Calculating structural radiation sound f ield by using high f requency approximation |
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| WANG Hongzhen and FENG Genan.Calculating structural radiation sound f ield by using high f requency approximation[J].Technical Acoustics,1997,16(1):1-3. |
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| Authors: | WANG Hongzhen and FENG Genan |
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| Abstract: | In this paper,the structural radiation sound field in the high frequency band(ka≥5)is calculated by using high frequency approximation i.e.,surface wave approximation,This method avoids three problems associated with the use of Boundary Element Method.They are(1)The calculation of C(p)factorat the nonsmooth point,(2)Singular integration,(3)no nuniqueness of so lution at the chara cteristic frequency.This method also has the advantages of high accuracy,small calculation amount and easy calculation at the personal computer. |
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| Keywords: | high frequency approximation radiation sound field |
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