시뮬레이션에 의한 허베이 스피리트호 충돌 사고 분석

Abstract

On 7 December 2007, the Hebei Spirit, a 260,000 dwt VLCC, anchored near Korea’s Daesan Port, was collided with a passing crane-carrying barge Samsung 1, which was under tow of two tugs Samsung T5 and Samho T3. This collision accident caused about 10,500 ton of oil spill and caused an immense ecological destruction of Korean western coastal area. An analysis of this accident has been done by simulation to investigate the cause of the accident. This study focuses on behavior of Hebei Spirit so that the simulation has been done only for Hebei Spirit. The motion of Samsung barge is not simulated and just given with recorded AIS data. The dynamic characteristics of Hebei Spirit have been modeled based on empirical data and her sea trial data. Effects of current, wave and wind are also considered using empirical formula. The effects of anchor, crucial in the simulation, are carefully modeled. The simulation has been done to reproduce the behavior of Hebei Spirit for 3 hours before actual accidents occurred. Considering uncertainty of environmental condition and control of Hebei Spirit, simulation has been done by varying engine control method and holding power coefficients of the anchor. This study will be used to find out most plausible scenario which could cause real accidents.