Andrzej Jasionowski

TIME-BASED SURVIVAL CRITERIA FOR PASSENGER RO/RO VESSELS

This paper outlines the study undertaken within the framework of research aiming to address the compound problem of the absolute time available for passenger evacuation on a damaged passenger/Ro-Ro vessel undergoing large scale flooding of car deck spaces. Deriving from extensive experimental information and utilising SEM principles, a methodology for predicting ship survival time is proposed that accounts for wave characteristics, water ingress/egress and vessel survivability. The progress achieved to date is discussed and aspects needing further investigation are highlighted.

SOLAS 2009 – Raising the Alarm

In anticipation of the new harmonised probabilistic rules for damage stability being adopted in January 2009, a number of ship owners are opting to follow these rules in advance, somewhat hesitantly and reluctantly considering the general lack of experience and understanding but also the confusion that prevails. In this climate, the authors have found a fertile ground for introducing a methodology to deal optimally with this problem, deriving from the arsenal of tools and knowledge available at SSRC and SaS. As a result, the authors are involved in some way or other with most ships currently being designed in accordance with the new probabilistic rules for damage stability. This involvement has revealed a somewhat more serious problem with probabilistic damage stability calculations, which is hidden in the detail of the rules, but one that matters most. The authors are highlights this problem and recommends a way forward.

Stability and safety analysis of the air-lifted catamaran

Abstract The air-lifted catamaran (ALC) is an innovative fast marine transportation concept, comprising the application and variation of a new, skirtless air cushion and air-lubrication, thus rendering it a hybrid between catamaran and surface effect ship (SES). Its features and capabilities are beyond current conventional high-speed monohull and catamaran. The present paper presents pertinent studies on stability concerning this craft, including dynamic stability, stability in turning and directional stability. The stability analysis takes into account air compressibility in the cushion, and is carried out in time domain. Some simulated results are presented and discussed, and requirements for design and operation of the craft based on IMO HSC Code 2000 are briefly outlined.

New Insights on the Sinking of MV Estonia

The paper presents the latest results from the ongoing research study on the sinking of Estonia, aimed at establishing a verifiable loss scenario by using stateof- the-art numerical and experimental tools to address all pertinent issues: flooding mechanism, coupled flooding-ship-sea dynamics, deterioration of watertight integrity and the abandonment process. The strategy in approaching this problem and the new insights derived from the adopted process are presented leading to early conclusions on the likely loss scenario.