Abstract
In this paper the elastic multisegmented ship model constructed at the test tank at the University of Galati, the measurement and data processing chains and the results of the experimental analysis are presented. We focused on the study of vibration phenomena: springing and whipping induced on the main vibration mode of the ship girder in the vertical plane. The necessity of this study results from the high stress level occurred on the vibration component, for the most probable bending moment amplitudes, up to 98% from the ship oscillation component.