Structure-Acoustic Analysis using BEM/FEM; Implementation in MATLAB

Abstract: This master dissertation describes the process of implementing a coupling between the boundary element method (BEM) and the finite element method (FEM) for three dimensional time harmonic structure-acoustic models in CALFEM, which is a finite element toolbox to MATLAB. Since no boundary elements earlier have been represented in CALFEM the development and implementation of constant and linear boundary elements is also described in this thesis. To verify the correctness of the implemented functions and to show how they are used three model examples are performed: one using only BEM, and two structure-acoustics.