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http://dx.doi.org/10.5394/KINPR.2020.44.3.264

Cause Investigation for the Flooding and Sinking Accident of the Ro-Ro Ferry Ship  

Chung, Young-Gu (Depart. of Naval Architecture & Ocean Systems Eng, Graduate School of Korea Maritime & Ocean University)
Lee, Jae-Seok (Marine Safety Technology)
Ha, Jung-Hoon (Depart. of Naval Architecture & Ocean Systems Eng, Graduate School of Korea Maritime & Ocean University)
Lee, Sang-Gab (Division of Naval Architecture and Ocean Systems Engineering, Korea Maritime & Ocean University)
Abstract
The Ro-Ro ferry ship capsized and sank to the bottom of the sea because of the rapid turning for several reasons, such as lack of stability due to the center of gravity rise from the extension and rebuilding of the stern cabin, excessive cargo loading, and shortage ballast, poor lashing, etc. The purpose of this study was to investigate and analyze the cause of the ship's rapid flooding, capsizing, and sinking accident according to rapid turning scientifically and accurately using the Fluid-Structure Interaction( FSI) analysis technique. Several tests were conducted for this cause investigation of the flooding and sinking accident correctly and objectively, such as the realization of the accurate ship posture tracks according to the accident time using several accident movies and photos, the validation of cargo moving track, and sea water inflow amount through the exterior openings and interior paths compared with the ship's posture according to the accident time using the floating simulation and hydrostatic characteristics program calculation, and the performance of a full-scale ship flooding·sinking simulation.
Keywords
Ro-Ro ferry ship; Fluid-Structure Interaction(FSI) analysis technique; flooding and sinking; floating simulation; calculation of hydrostatic characteristics program; seawater inflow;
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