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Design implications of the new harmonised probabilistic damage stability regulations

Vassalos, Dracos and York, Anthony and Jasionowski, Andrzej and Kanerva, Markku and Scott, Andrew (2007) Design implications of the new harmonised probabilistic damage stability regulations. International Shipbuilding Progress, 54 (4). pp. 339-361. ISSN 0020-868X

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Abstract

In anticipation of the forthcoming new harmonised regulations for damage stability, SOLAS Chapter II-1, proposed in IMO MSC 80 and due for enforcement in 2009, a number of ship owners and consequentially yards and classification societies are venturing to exploit the new degrees of freedom afforded by the probabilistic concept of ship subdivision. In this process, designers are finding it rather difficult to move away from the prescription mindset that has been deeply ingrained in their way of conceptualising, creating and completing a ship design. Total freedom it appears is hard to cope with and a helping hand is needed to guide them in crossing the line from prescriptive to goal-setting design. This will be facilitated considerably with improved understanding of what this concept entails and of its limitations and range of applicability. This paper represents an attempt in this direction, based on the results of a research study, financed by the Maritime and Coastguard Agency in the UK, to assess the design implications of the new harmonised rules on passenger and cargo ships.