文章摘要
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,(3):97~100
用边界元法计算声辐射时高次奇异积分的处理方法
A method of treating high-order singular integration in calculation of sound radiation with BEM
投稿时间:1995-11-09  
DOI:
中文关键词: 边界元法  声辐射  奇异积分
英文关键词: boundary element method  sound radiation  singular integration
基金项目:
作者单位
汪鸿振 上海交通大学振动冲击噪声研究所 200030 
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中文摘要:
      边界元法应用于计算辐射声场时,由于奇异积分的存在,会影响到计算结果的精度。本文描述了处理带有1/r奇异积分和1/r2二次奇异积分的处理方法,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。
英文摘要:
      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/r2 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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