Published in: Proceedings of conference ICANOE 2023

Authors: Anant Ajithkumar, Amresh Negi and Shivaji Ganesan T

Date of Publication: 3-4, Nov-2023

At its 102nd session, the Maritime Safety Committee of IMO approved the Interim Guidelines on the second-generation intact stability criteria, an important framework addressing ship stability in waves. These guidelines systematically define the criteria for assessing a ship's vulnerability in five distinct failure scenarios: Pure Loss of Stability, Parametric Roll, Surf-Riding/Broaching, Dead Ship condition, and Excessive Acceleration. For each scenario, vessels are required to undergo assessments at a minimum of one of three defined levels of criteria, satisfying at least one of them. This paper focuses on the Level-1 and Level-2 criteria assessments for all five failure modes concerning a Container Vessel (CV) cruising at Froude number exceeding 0.3, analyzing how key loading condition parameters impact the final criteria outcomes. Such insights garnered from this analysis carry significant weight, offering valuable knowledge instrumental in the further refinement of the criteria. The assessments were conducted using in-house developed computer tools.