Initial Conditions Contributions In Frequency Domain Analysis:
A New BEM Approach
Author(s)
W. J. Mansur, A. I. Abreu & J. A. M. Carrer
Abstract
Initial conditions contributions in frequency
domain analysis: a new BEM approach
W. 5. Mansur, A. I. Abreu & J. A. M. Carrer
Civil Engineering Department, COPPE/Federal University of Rio de
Janeiro, Rio de Janeiro, Brazil
Abstract
This work presents a methodology to consider the contribution of initial velocity
and displacement in the frequency domain formulation of the BEM. The paper
describes how initial conditions can be replaced by pseudo-forces represented by
generalized functions. The generation of such pseudo-forces and their discrete
Fourier Transform (Direct DFT, and Inverse IFT) are the subject of a short
discussion and explanation. At the end of the paper two examples are presented
in order to show the accuracy of the proposed approach
1 Introduction
Several BEM formulations have been developed in order to solve transient
problems, governed by the scalar wave equation. For general purposes, timedomain
(TD) and transformed-domain formulations can be employed to solve
scalar wave pr
Keywords
Related Book
Other papers in this volume
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