A prediction of the acoustic field of a vibrating box by FEM-BEM

摘要

A method based on Holmholtz equation is presented to predict the acoustic radiation of a vibrating box by combining the finite element method (FEM) with boundary element method (BEM). The prediction formulation is valid for all frequencies if an extra equation is added. The acoustic field of a vibrating box has been calculated and measured. The effectiveness of the method has been proved by test results.