STUDIES CONCERNING THE STRUCTURAL RESPONSE OF THE SHIP DURING REFLOATING OPERATIONS BY HER OWN MEANS

The paper presents the results of a very thorough and prolonged activity. Even if results are succinctly presented, by graphics and diagrams, the volume of data behind them is a huge one, detailed in the paper’s informations. In the first stage, starting from a very detailed body plan, the 3D model of the hull was conceived in CAD/CAE - Solidworks. The level of complexity of the model is a very high one, but this one was limited as well by the processing capacity of the calculus system used. In the second stage, the propeller’s maximum force was determined when going astern, by a hydrodynamic analysis and then this force was applied as a percentage on the ship in seven different studies, using loads of 100%, 95%, 90%, 85%, 80%, 60% and 40%. In order to perform these studies the CAE ANSYS12.1 was used. In the end of these studies an interesting conclusion is reached from the scientific point of view finalized by a very useful recommendation for masters.