Abstract: Advanced computer programs allowing for numerical solving of mechanical problems are often used as design tools. Effective use of packages based on the finite element method allows for predicting the dynamical behaviour of the structure already at the design stage. This study is concerned with numerical analysis of the hull in a passenger ship whose FEM model is based on the technical specifications. Estimated values of acoustic pressure are compared with measurement results. Furthermore, the applicability of computer models to predictions of dynamic behaviour of complex structures is evaluated.