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Quasi-static response of a 19000 TEU class ultra large container ship with a novel mobile deckhouse for maximizing cargo capacity

Modern sea transportation is characterized by ever larger container ships, which require direct calculation procedures and numerical tools to achieve their reliable structural design. There are different attempts to increase the ship loading capacity, as for instance a container ship with a novel mobile deckhouse enabling her to carry additional number of containers, and at the same time changing basic structural properties of the ship. This paper is related to structural design evaluation of a 19, 000 TEU ultra large container ship with novel mobile deckhouse for maximizing cargo capacity, particularly relying on quasi-static approach. The ship structural design is evaluated both for fatigue and extreme loads, where conventional container ship of same particulars is used as a reference. Independent analyses of new and conventional design indicate that conventional container ship shows somewhat better performance from viewpoint of fatigue, while global extreme loading is at the same level.

Container ship, Spectral fatigue, Extreme response, Quasi-static approach

This study was done within the Joint Research Project “A Study on Springing and Whipping of Hyundai SkyBench™ Container Carrier”. The authors would also like to acknowledge the support from the National Research Foundation of Korea (NRF) grant funded by the Korean Government (MSIP) through GCRC-SOP (Grant No. 2011-0030013). The obtained results and conclusions reflect personal opinions of the authors and do not represent the official attitude of their institutions. The authors would also like to express their gratitude to Alexis Benhamou from the Bureau Veritas Research Department for his valuable help.