Pedersen, Preben Terndrup2; Simonsen, Bo Cerup3; Zhang, Shengming1
1 Department of Naval Architecture and Offshore Engineering, Technical University of Denmark2 Department of Mechanical Engineering, Technical University of Denmark3 Centre for oil and gas – DTU, Center, Technical University of Denmark
Sub-task 1.2 of DEXTREMEL deals with development of models for external ship collision and grounding dynamics and for internal ship structure dynamics. In order to get a better overview of the work performed in this task it has been decided to write two reports on the work. One dealing with internal and external collision dynamics and the present report which deals with structural analysis of grounding events.The first part of the present report is devoted to an energy balance for raking damage situations.Then follows a numerical study of the forces associated with cutting and crushing of the bottom of MS DEXTRA and other RoRo vessels.Key words: ship grounding, inner mechanics, structural damage, absorbed energy, bottom damage distribution, and Minorsky method.