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A new method for the evaluation of singular boundary element integrals over three-dimensional isoparametric boundary elements of higher order is presented. This new procedure represents a Gaussian quadrature technique using polar coordinates for the calculation of the Gaussian points and the weighting coefficients. This method permits an efficient integration of singular kernels of order O(1/r) on curved surfaces. For a numerical example the proposed integration scheme is compared with other methods (subdivision technique, double exponential formula method, modified Gauss-quadrature) showing high efficiency and accuracy. The actual computation can be easily included in any existing computer code
Published in:
Magnetics, IEEE Transactions on
(Volume:33
,
Issue:
2
)
Date of Publication: Mar 1997
- Page(s):
- 1386 - 1389
- ISSN :
- 0018-9464
- INSPEC Accession Number:
- 5542644
- Digital Object Identifier :
- 10.1109/20.582515
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Mar 1997
- Sponsored by :
- IEEE Magnetics Society
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