Andrzej Jasionowski

SophusQuorm

This paper presents results of the physical experiments carried out at the SSRC, aiming at measurements of hydrodynamic reactions on a cylindrical body forced to roll in calm water with an open-to-sea compartment. The research addresses the problem of ship-floodwater interaction—an issue of fundamental importance in predicting roll damping for ship...

Guaranteeing a sufficient level of safety from the point of view of stability is typically considered to be a matter of design. The overall level of safety of a ship, however, can only be guaranteed when considering passive design measures in conjunction with active operational measures, in a holistic, balanced and cost-effective manner. Time could...

This paper presents a brief summary of the work carried out by SSRC and Brookes Bell Safety at Sea within the EC-funded project GOALDS on the development of a new formulation for assessing the survivability of damaged ships in waves. The proposed formula is meant to be an alternative or replacement to the s-factor in use within the current SOLAS re...

Guaranteeing a sufficient level of safety from the point of view of stability is typically considered to be a matter of design. However, it is impossible to ensure safety only by design measures, and operational measures can then represent a complementary tool for efficiently and cost-effectively increasing the overall safety of the vessel. Time co...

Decision support systems for onboard use are many and varied. Primary role of such systems is to alleviate burden of processing of ship and environment data and ultimately to help crew in making informed decisions. Effectiveness of such processing could not be more important than during crises situations. This article presents with a prototype of a...

This paper presents results of the physical experiments carried out at the SSRC, aiming at measurements of hydrodynamic reactions on a cylindrical body forced to roll in calm water with an open-to-sea compartment. The research addresses the problem of ship-floodwater interaction – an issue of fundamental importance in predicting roll damping for sh...

This paper presents a brief summary of the work carried out by the SSRC, within the EC-funded project GOALDS, on the development of a new formulation for the assessment of the survivability of a damaged ship in waves. The proposed formula is meant to be an alternative or replacement to the s-factor in use within the current SOLAS regulations for pr...

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 fo...

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 state-of-the-art numerical and experimental tools to address all pertinent issues: flooding mechanism, coupled flooding-ship-sea dynamics, deterioration of watertight integrity and the abandonmen...

Ever present jargon and colloquial notion of risk, coupled with obscuring of the simplicity inherent in the concepts of risk by the sophistication of computer software applications of techniques such as event trees, fault trees, Bayesian networks, or others, seem to be major factors inhibiting comprehension and systematic proliferation of the proce...

The present book derives from the knowledge gained in the course of the project SAFEDOR (Design, Operation and Regulation for Safety), an Integrated Project under the 6th framework programme of the European Commission (IP 516278). The book aims to provide an understanding of the fundamentals and details of the integration of risk-based approaches i...

The present book derives from the knowledge gained in the course of the project SAFEDOR (Design, Operation and Regulation for Safety), an Integrated Project under the 6th framework programme of the European Commission (IP 516278). The book aims to provide an understanding of the fundamentals and details of the integration of risk-based approaches i...

In this chapter, three applications of risk-based approaches to ship design are elaborated, namely the development and design of a lightweight composite sandwich superstructure of a RoPax vessel, the risk-based optimisation of cargo block of an AFRAMAX tanker for enhanced capacity and reduced environmental impact and the development and design of a...

A seakeeping analysis in the frequency domain is presented to predict the motion response of an air-lifted vessel (ALV) in waves. The ALV is supported by pressurised air in two separate cushion chambers; the pressure variation in the cushions has a significant effect on the motions of the vessel. The adiabatic gas law is used to couple cushion pres...

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 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 of a catamaran and an SES (surface effect ship). Its features and capabilities are beyond those of current, conventional high-speed monohulls and...

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....

The prevailing regulatory framework addressing ship safety originates in some distant past and carries a heavy "baggage" of experiential determinism and rules of thumb; all throwing a smoke screen onto science and quenching most attempts to dealing with safety in a scientific, all embracing and systematic approach. Goal-Based Standards are meant to...

The hydrodynamic problem of 3D planing surface is studied by a finite element approach. The planing surface is represented by a number of pressure patches whose strengths are constant at each element. The unknown pressure strength is obtained by using the free surface elevation condition under the planing surface and Kutta condition at the transom...

A numerical method is presented for predicting wash waves of Surface Effect Ships (SES) at deep waters. The wash waves of the SES are represented by the wave-making of a moving rectangular pressure distribution over the air cushion. Basing on the linear potential theory, the wash waves can be analytically expressed as integral whose integrand oscil...

Following the reopening of the Intact Stability Code by the International Maritime Organisation (IMO), a number of questions are being raised concerning the practical applicability of Resolution A.562 known as the Weather Criterion on modern passenger ships and answers sought on a way forward by way of either re-examining and suitably tuning the cr...

This paper aims to clarify a number of issues concerning the dynamics of a damaged ship, interpreting the results of recent towing tank tests by means of a simplified linear model with two degrees of freedom. In this sense, this work can be seen as the natural evolution of the extensive body of work in this field undertaken by the SSRC during a lon...

This paper aims to present and explain the work undertaken at the SSRC on the Safety of Bulk Carriers in extreme weather conditions over the past 3 years, to draw conclusions deriving there from, concerning key influencing design, operational and environmental parameters and to offer recommendations regarding the rule development process and on the...

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 utilizing static equivalent method (SEM)...

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 utilizing static equivalent method (SEM)...

This paper outlines the research work undertaken at the University of Strathclyde aiming to address the question of `passenger survival' following large scale flooding on the vehicle deck of passenger/Ro-Ro vessels. An extensive investigation was carried out, with the intention of characterizing the survival of a vessel in marginal conditions, culm...

This paper summarises research into effects of transient stages of flooding on stability of modern large passenger ships (LPS). The sample study-case configuration exhibits high vulnerability to attaining excessive angles of heels due to inrush of water, possibly leading to immediate capsizing even for small damages. The underlying physical mechani...

Design of a safe ship is by far the most fundamental goal of a naval architect. Determination of what is safe, however, has been the subject of centuries-long and relentless endeavours by the profession as well as relevant lobbies representing diverse interests and public concerns. Flooding of ship void spaces and thus possibly rapid depletion of t...

The age of mega-ships is clearly upon us and it is here to stay, fuelling innovation and technological breakthroughs and challenging societal perception on safety in an unprecedented manner. Experience finds no fertile ground to breed and the regulatory system is stretched to breaking point. Conjecture will not do, for the risk is too high. Difficu...