Bottom slamming for a Very Large Floating Structure: local and global analysis. Part 2

The bottom-slamming of a Very Large Floating Structure (VLFS) is studied with theoretical and numerical tools. The strategies adopted are: (i) a fully nonlinear description to predict bottom-slamming occurrence, (ii) a linear analysis to estimate the global motions of a platform, and (iii) a Domain-Decomposition strategy combining them. In the latter case, method (i) is used in an inner domain in the wave-side region of the VLFS, where nonlinearities matter and bottom-slamming can occur, and receives the initial and boundary conditions and the body motions from the global analysis performed by (ii). In this second part of the analysis, method (ii) and strategy (iii) are presented. The former is used to examine the global behavior of a VLFS at model and full scales. The latter is adopted to investigate the coupling between the global motions and the slamming events.