A STUDY ON THE HULL FORM DEVELOPMENT AND NUMERICAL ANALYSIS-BASED ICE CAPABILITY ESTIMATION METHOD FOR ARCTIC CONTAINER SHIP

Abstract

This paper discusses the hull form development of an Arctic container vessel and the estimation method for ice capability. Specifically, it explores the relationship between hull form shape and ice resistance and presents research findingson the estimation of the pod propeller overload curve. Accurate prediction of ice capability requires precise estimation of net thrust and ice resistance. In this study, the pod propeller overload curve was estimated using a numerical analysis approach, while ice resistance was evaluated using the Simulator for Arctic Marine Structure (SAMS). The estimation results were validated by comparing them with model test results, showing an error rate of 5.0% to 10.0%. These findings confirm the high accuracy of ice capability prediction and the validity of the results, providing useful insights for ice capability estimation in the early design stage before conducting ice tests. Furthermore, the key performances of the developed Arctic container vessel were analyzed, and the effects of hull form shape on these performances were examined. Ultimately, the results confirm that the developed Arctic container vessel meets the Arc7 class ice performance requirements and achieves an open-water speed exceeding 20 knots, as verified through model testing.