Hydrodynamic Interactions between Container Ship and Mobile Harbor with SPM-Buoy Station

摘要

As the size of container ships increases, not many existing harbors canhost the super-container ship with its increased draft, and the continualeffort of dredging requires huge budget. In addition, the minimizationof waiting and offloading time is the most important factor in harborcompetitiveness in this kind of global economy. In this regard, mobileharborconcept has been developed in Korea to effectively solve theproblem. In developing the concept, one of the most important elementsis the operability of crane between two large floating bodies in side-bysidearrangement. The container ship is to be stationed through hawserlines to a SPM (Single-Point Mooring) buoy station at an offshore sitewith the depth allowing its large draft. The mobile harbors with cranesare berthed to the side of its hull for container loading/offloading andtransportation. The relative motions between the two floating bodieswith proper hawser connection have to be within allowable range forthe crane operability. Therefore, the reliable prediction of the relativemotions of the three floating bodies with hawser/mooring is essentialfor the safe and cost-effective design of such a system. Time-domainmulti-hull-mooring coupled dynamic analysis program is used to assessthe global performance of the moored system and hydrodynamicinteractions among the three floating bodies.