Author(s)

A.H.W.M. Kuijpers, G. Verbeek & J.W. Verheij

Abstract

Application of the acoustic Fourier series boundary element method (FBEM) for axisymmetric structures with non-axisymmetric boundary conditions is very attractive, because of the signifi- cantly reduced computational cost compared to application of the normal 3-dimensional BEM. An efficient implementation of the acoustic FBEM however, is far from straightforward. In the FBEM formulation some integrals over the angle of revolution arise, which need to be calculated for every Fourier term. The evaluation time for these integrals determines the total computa- tional cost and therefore the efficiency of the FBEM. The integrals were formerly treated for each Fourier term separ

Keywords