Some notes on singular integral techniques in boundary element analysis
Some notes on singular integral techniques in boundary element analysis
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DOI：
10.1002/nme.1620361509
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发表时间：
1993-08
影响因子：
2.9
通讯作者：
Q. Huang;T. Cruse
中科院分区：
文献类型：
--
作者：
Q. Huang;T. Cruse
本文综述了边界元分析中奇异积分和近似奇异积分的数值计算方法。讨论了以往文献中的一些错误算法，提出了一种计算近似奇异积分的新方法。数值结果表明，与传统的自适应高斯求积和细分技术相比，该方法在精度和效率上都有明显的提高。
The paper presented here reviews the numerical techniques used currently to calculate the singular integrals and nearly singular integrals in the boundary element analysis. Some incorrect algorithms published before are discussed and a new numerical technique to calculate the nearly singular integral is developed. The numerical results show a significant improvement in both accuracy and efficiency compared to the traditional adaptive Gaussian quadrature and subdivision techniques.