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Applying Risk-Based Design to Arctic Ships

Published on May 31, 2015
· DOI :10.1115/OMAE2015-41291
Martin Bergström3
Estimated H-index: 3
(NTNU: Norwegian University of Science and Technology),
Stein Ove Erikstad11
Estimated H-index: 11
(NTNU: Norwegian University of Science and Technology),
Sören Ehlers14
Estimated H-index: 14
(NTNU: Norwegian University of Science and Technology)
Abstract
One of the challenges related to the design of arctic cargo ships is that their transport capacity is dependent on a number of arctic specific design parameters (e.g., ice conditions and the availability of icebreaker support) in which there typically is a significant level of uncertainty and stochasticity. This paper addresses that challenge by presenting a design method that deals with the parameter uncertainty by integrating method of risk assessment in to the design process, i.e., by utilising the principles of Risk-Based Design (RBD). In order to obtain a holistic approach, the design method treats a ship as an arctic sea transport system that might include multiple ships, icebreakers, and port-based facilities such as cargo storages. Using the method it is possible to design an arctic sea transport system that provides a desired level of operational reliability. This provides the means to minimise costs and financial losses due to over- or undercapacity, and thereby to improve the resource-efficiency of the system as a whole.Copyright © 2015 by ASME
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#1Oleg V. TarovikH-Index: 2
#2Alex G. TopajH-Index: 2
Last. Dmitry Zaikin (Gazprom Neft)
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We developed a detailed simulation model of the Arctic marine transport system (MTS) for oil platform Prirazlomnaya. The model has a multidisciplinary nature and involves: sub-models of various transport and technological processes; stochastic weather generator to obtain time series of 15 environmental parameters; and contextual planning algorithm to build voyage plan considering several types of ships and cargoes. We used a significant amount of real operational data to identify model parameter...
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#1Sandro Erceg (NTNU: Norwegian University of Science and Technology)H-Index: 3
#2Sören Ehlers (TUHH: Hamburg University of Technology)H-Index: 14
ABSTRACTShip performance in ice depends on numerous design aspects, such as ensuring adequate thrust, appropriate arrangement of the propellers, as well as a hull designed to reduce the resistance, in both ice and open water. All these efforts require ice resistance estimates. In early design stages, semi-empirical methods represent the most commonly used choice. However, being based on a limited amount of empirical data, these methods are expected to be restricted to ships of similar characteri...
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