| 用边界元法计算声辐射时高次奇异积分的处理方法 |
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| 引用本文： | 汪鸿振.用边界元法计算声辐射时高次奇异积分的处理方法[J].声学技术,1996,15(3):97-100. |
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| 作者姓名： | 汪鸿振 |
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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： | 边界元法应用于计算辐射声场时，由于奇积分的存在，会影响以计算结果的精度，本文描述了处理带有１／ｒ奇异积分和１／ｒ＾２二次奇异积分处理方法，包括数学证明和数值积分方法，计算结果表明这种方法能提高精度。
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| 关 键 词： | 边界元法 声辐射 奇异积分 |
| 收稿时间： | 1995/11/9 0:00:00 |
A method of treating high-order singular integration in calculation of sound radiation with BEM |
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| WANG Hongzhen.A method of treating high-order singular integration in calculation of sound radiation with BEM[J].Technical Acoustics,1996,15(3):97-100. |
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| Authors: | WANG Hongzhen |
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| Affiliation: | Shanghai Jiao Tong University 200030 |
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| Abstract: | The singular integration will affect the precision of the result while the Boundary Element Method (BEM) is used in calculating sound radiation. The methods of treating singularities in 1/r 2 as well as singularities in 1/r were presented,which include mathematical proof and numerical integration method. The calculating results show this method can improve the precision of the results. |
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| Keywords: | boundary element method sound radiation singular integration |
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