확률론적 손상을 고려한 손상 선박의 잔류 종강도 평가

초록

This paper provides prediction of ultimate longitudinal strengths of VLCC hull girders with probabilistic damage extents based on IMO Guideline. The various probability levels are taken into account for the damage extent estimation. The ultimate strengths have been calculated using in-house software UMADS (Ultimate Moment Analysis of Damaged Ships) which is based on simplified method. In the cases of grounding accident, the residual longitudinal strengths can be expressed as a function of nondimensional damage area, meanwhile it is proved that there are not clear relations between the residual strength and the damage area. It is inferred that this is due to asymmetry of damaged hull girder section.