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http://dx.doi.org/10.3744/SNAK.2003.40.5.060

Effects of Operational Condition and Sea States on Wave-Induced Bending Moments of Large Merchant Vessels  

김동문 ((주)필스)
백점기 (부산대학교 조선해양공학과)
Publication Information
Journal of the Society of Naval Architects of Korea / v.40, no.5, 2003 , pp. 60-67 More about this Journal
Abstract
For risk or reliability assessment of ship structures against particular hazardous situations such as total loss or sinking due to hull girder collapse, the short-term based response analysis rather than the long-term response analysis is required to determine wave-induced bending moments when the ship encounters a storm of specific duration and with a specified small encounter probability. In the present study, the effects of operational condition and sea states on wave-induced bending moments of large merchant vessels are investigated. A series of the short-term response analyses for a hypothetical VLCC and a Capesize bulk carrier (CSBC) are carried out with varying operational condition and sea states which include ship speed, significant wave height and wave persistence time, using the linear-strip theory based program ABS/SHIPMOTION and the MIT sea-keeping tables. The computed results are also compared with the IACS design formula predictions. The results and insights developed from the present study are summarized.
Keywords
Risk assessment of ships; Long-term response; Short-term response; Wave-induced bending moment; operational condition; Sea states;
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