Mathematica 9 is now available

Wolfram Library Archive


Courseware Demos MathSource Technical Notes
All Collections Articles Books Conference Proceedings
Title

Boundary Modulation
Author

Gautam Dasgupta
Organization: Columbia University
Department: Department of Civil Engineering and Engineering Mechanics
Journal / Anthology

Engineering Analysis with Boundary Elements
Year: 1992
Volume: 9
Page range: 247-253
Description

The general formulation of the boundary modulation technique is furnished. The strengths of the boundary element, the finite element and the analytical Fourier series methods have been integrated in a boundary method. The most generic problem of mathematical physics, that involves the Laplacian, is illustrated for arbitrary generalized convex domains. Specifically, a macro finite element is constructed analytically in the spirit of boundary elements. Instead of solving a set of simultaneous equations on a convex region, the orthogonality property of the test functions are employed on the transformed unit circle. The distributed forcing function is modulated by a factor which depicts the geometry of the physical domain. Applications to model the substructure deleter for seismic response calculations of embedded structures and the evaluation of the boundary element responses due to distributed forces motivated the formulation.
Subject

*Engineering > Mechanical and Structural Engineering