Toward Performance-Based Criteria for Intact Stability
This paper addresses the principal issues related to development of performance-based criteria for intact stability of ships. The motivation for the development is examined, and terminology for stability failures and types of criteria is considered. The physics of three modes of stability failures (dead-ship conditions; broaching; and variation of righting arm, including pure loss of stability and parametric roll) is reviewed with numerical examples. Special attention is paid to problems that need to be addressed during the development of probabilistic performance-based criteria, including time dependence, the choice of time interval, and the problem of rarity. Different hypotheses of capsizing are examined. This paper also contains a review of methods and techniques for simulating all three modes of stability failure.
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Document Type: Research Article
Publication date: 2008-04-01
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