DYNAMIC STABILITY ASSESSMENT OF DAMAGED PASSENGER SHIPS

In the transition from deterministic to probabilistic approaches to assessing the damage survivability of passenger ships this paper seeks to draw attention to the key need in regard to loss prevention - the need to address survivability by taking full account of vessel dynamics in realistic environments. The paper aims to achieve this by adopting a procedure whereby, after consideration of a number of realisable damage scenarios, survivability is assessed on the basis of the dynamic behaviour of the vessel in realistic wind and wave conditions. The practical applicability of the proposed procedure is demonstrated by means of a wide-ranging parametric investigation, on the basis of which, boundary stability curves involving relationships between design and environmental parameters and inherent stability-related parameters, are recommended as a substitute for the existing still-water damage stability criteria.