Probabilistic Approach to Predicting Residual Longitudinal Strength of Damaged Double HullVLCC

doi:2011.25.3.1

J. Ocean Eng. Technol. > Volume 25(3); 2011 > Article

J. Ocean Eng. Technol. 2011;25(3):1-10.
DOI: https://doi.org/10.5574/KSOE.2011.25.3.001

Huynh Van-Vu,Lee Seung-Hyun,Cho Sang-Rai

School of Naval Architecture and Ocean Engineering University of Ulsan,Structure Technology Team STX Offshore and Shipbuilding,School of Naval Architecture and Ocean Engineering University of Ulsan

Keywords: Damaged ship, Double Hull VLCC, Residual longitudinal strength, Combined bending moment, Monte Carlo simulation

Abstract

This paper estimates the residual longitudinal strength of a damaged double hull VLCC (Very Large Crude Carrier) under combined vertical and horizontal bending moments using Smith's method. The damage estimated in this study occurred due to collision or grounding accidents. The effects of the randomness of the yield stress, plate thickness, extent of damage, and the combination of these three parameters on the ultimate hull girder strength were investigated. Random variables were generated by a Monte Carlo simulation and applied to the double hull VLCC described by the ISSC (International Ship and Offshore Structures Congress) 2000 report.