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A Projection Transformation Method for Nearly Singular Surface Boundary Element Integrals (Paperback, Softcover reprint of the original 1st ed. 1992) Loot Price: R3,015
Discovery Miles 30 150
A Projection Transformation Method for Nearly Singular Surface Boundary Element Integrals (Paperback, Softcover reprint of the...

A Projection Transformation Method for Nearly Singular Surface Boundary Element Integrals (Paperback, Softcover reprint of the original 1st ed. 1992)

Ken Hayami

Series: Lecture Notes in Engineering, 73

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Loot Price R3,015 Discovery Miles 30 150 | Repayment Terms: R283 pm x 12*

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In three dimensional boundary element analysis, computation of integrals is an important aspect since it governs the accuracy of the analysis and also because it usually takes the major part of the CPU time. The integrals which determine the influence matrices, the internal field and its gradients contain (nearly) singular kernels of order lIr a (0:= 1,2,3,4,.**) where r is the distance between the source point and the integration point on the boundary element. For planar elements, analytical integration may be possible 1,2,6. However, it is becoming increasingly important in practical boundary element codes to use curved elements, such as the isoparametric elements, to model general curved surfaces. Since analytical integration is not possible for general isoparametric curved elements, one has to rely on numerical integration. When the distance d between the source point and the element over which the integration is performed is sufficiently large compared to the element size (d> 1), the standard Gauss-Legendre quadrature formula 1,3 works efficiently. However, when the source is actually on the element (d=O), the kernel 1I~ becomes singular and the straight forward application of the Gauss-Legendre quadrature formula breaks down. These integrals will be called singular integrals. Singular integrals occur when calculating the diagonals of the influence matrices.

General

Imprint: Springer-Verlag
Country of origin: Germany
Series: Lecture Notes in Engineering, 73
Release date: March 1992
First published: 1992
Authors: Ken Hayami
Dimensions: 242 x 170 x 24mm (L x W x T)
Format: Paperback
Pages: 456
Edition: Softcover reprint of the original 1st ed. 1992
ISBN-13: 978-3-540-55000-6
Categories: Books > Professional & Technical > Technology: general issues > Engineering: general
Books > Science & Mathematics > Mathematics > Calculus & mathematical analysis > Integral equations
Books > Science & Mathematics > Mathematics > Applied mathematics > Mathematics for scientists & engineers
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LSN: 3-540-55000-3
Barcode: 9783540550006

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