Crew Comfort Investigation for Vertical and Lateral Responses of a Container Ship

Abstract

This study deals with the crew comfort on board analyses based on vertical and lateral responses of a container ship in sea states 4, 5 and 6. Crew on board might be affected by excessive motions of the ship where fatigue and lack of morale might began gradually and it leads to low concentration for deck operations. This is all called as seasickness phenomena and it should be investigated/evaluated influence on conceptual design decisions. Vertical and lateral responses calculations of the ship are carried out by using strip theory and short statistical method. The total roll damping coefficient is defined using Ikeda's estimation method. The obtained results are combined with the published seakeeping criteria in terms of human factor. In the end of study, operability indices of the container ship are shown with respect to sea states and selected criteria in polar diagrams and tables.