3RD DEGREE POLYNOMIAL TRANSFORMATION FOR BOUNDARY-ELEMENT INTEGRALS - FURTHER IMPROVEMENTS

被引：63

作者：

TELLES, JCF

OLIVEIRA, RF

机构：

[1] COPPE/Univ. Federal do Rio de Janeiro, Programa de Engenharia Civil, 21945-970 Rio de Janeiro

来源：

ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS | 1994年 / 13卷 / 02期

关键词：

SELF-ADAPTIVE COORDINATE TRANSFORMATION; NUMERICAL QUADRATURE; BOUNDARY ELEMENT METHOD;

D O I：

10.1016/0955-7997(94)90016-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The first author has previously developed a third degree polynomial coordinate transformation which improves the accuracy of numerical quadrature schemes typical of boundary element implementations. This transformation is now extended to include additional integrand variations and kernels of order ln(1/r),1/r,1/r2 and 1/r3 are discussed. The optimized parameter which governs the transformation is presented in tabular form for several source to element minimum distances.

引用

页码：135 / 141

页数：7

共 14 条

[1] TAYLOR EXPANSIONS FOR SINGULAR KERNELS IN THE BOUNDARY ELEMENT METHOD [J].