Direct Assessment of Structural Capacity Against Sloshing Using Dynamic Nonlinear FE Analysis

The phenomenon of sloshing is a critical aspect for the design of LNG cargo containment system (CCS) for LNG carriers and FLNGs. Many attempts have been made, therefore, to evaluate the sloshing capacity of the CCS taking account of non-linear dynamic issues. The purpose of this paper is to show how more of critical issues have been addressed and to update the direct assessment method of sloshing capacity of LNG CCS(Cargo Containment System) under sloshing loads proposed in Chun et al. (2011). To achieve this, a large set of physical testing of the RPUF(Reinforced polyurethane foam) and CCS has been undertaken with the purpose of improving knowledge of the structural response and ultimate capacity of RPUF. Furthermore, this paper shows results from the dry drop test as well as comparison with analysis results and the predicted ultimate sloshing capacity.