Application of surf-riding and broaching mode based on IMO second-generation intact stability criteria for previous ships

International Maritime Organization (IMO) have recently discussed the technical problems related to the second-generation intact stability criteria of ships. The second-generation intact stability criteria refer to five modes of vulnerability when the ship sailing in the ocean. In this study, we des...

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Bibliographic Details
Published in:International journal of naval architecture and ocean engineering 2021, Vol.13 (13), p.545-553
Main Authors: Shin, Dong Min, Moon, Byung Young, Chung, Jaeho
Format: Article
Language:Korean
Online Access:Get full text
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Summary:International Maritime Organization (IMO) have recently discussed the technical problems related to the second-generation intact stability criteria of ships. The second-generation intact stability criteria refer to five modes of vulnerability when the ship sailing in the ocean. In this study, we described a method to verify the criteria of the surf-riding/broaching. In case that Lv1 (Level 1) vulnerability criteria is not satisfied based on the relatively simple calculation using the Froude number (Fn), we presented the calculation procedure for the Lv2 (Level 2) criteria considering the hydrodynamics in waves. The results were reviewed based on the data for given previous ships. In absence of ship-specific data, a similar Lv2 result was confirmed by comparing the result obtained by calculating the added mass with the case where the added mass was 10% of the ship mass. This result will contribute to basic ship design process according to the IMO draft regulation.
ISSN:2092-6782
2092-6790