INTEGRATED FEM BEM APPROACH TO THE DYNAMIC AND ACOUSTIC ANALYSIS OF PLATE STRUCTURES/

An integrated finite element/boundary element method approach to the p rediction of the interior acoustic radiation of open ended box structu res is presented. Dynamic response of the structure is predicted in te rms of the nodal displacements under sinusoidal point force excitation using the finite element method. Theoretical results obtained in term s of frequency response functions are verified using the results from tests performed on a box structure. The interior acoustic field is the n examined by the boundary element method using the boundary condition s obtained from the finite element analysis. Sound pressure levels pro duced inside the structure are calculated and the results are compared with the experimental measurements. Copyright (C) 1996 Elsevier Scien ce Ltd