Coupled Tank Sloshing and LNG Carrier Motions

摘要

In this paper, we present our study on the global loads induced byrnliquid flow in cargo tanks and their coupling with LNG Carrierrn(LNGC) motions. The objective of this work is to study liquid cargornsloshing coupling effects on LNGC motions in random seaways. Inrnthis study, a scaled two-dimensional tank sloshing test and a largescalernseakeeping model test were performed to verify the developedrnship motion analytical tools. Both LNGC motions and loads on tanksrnwere verified with these tests. The seakeeping tests and numericalrnpredictions confirmed that even though sloshing impact pressures arernnonlinear and stochastic, global tank loads and LNGC motions arerndeterministic. The coupled motion RAOs and metocean data werernused to predict the vessel motion time series for tank sloshing test.