Stochastic life cycle ship design optimization
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Inclou dades d'ús des de 2022
Cita com:
hdl:2117/332282
Tipus de documentText en actes de congrés
Data publicació2015
EditorCIMNE
Condicions d'accésAccés obert
Tots els drets reservats. Aquesta obra està protegida pels drets de propietat intel·lectual i
industrial corresponents. Sense perjudici de les exempcions legals existents, queda prohibida la seva
reproducció, distribució, comunicació pública o transformació sense l'autorització del titular dels drets
Abstract
In the presented research study, a parametric model of a bulk carrier design is
utilized in order to explore the technical and economic ship design features (design attributes) in
the frame of a stochastic optimization procedure. The life cycle assessment
of a newbuilding's investment that includes ship's acquisition and operation cost for
ship's life cycle is affected by a variety of cost and other parameters have an inherent
uncertainty. The ship design attributes are herein represented by six main ship parameters that
define the basic characteristics of a vessel: length, breadth, depth, draft, block coefficient and
speed. Among the ship characteristics that are related to high uncertainty are ship's energy
consumption in terms of fuel consumption, fuel mix and fuel prices. In the present paper, an
attempt is made to investigate how the uncertainty of estimations of the fuel consumption, fuel mix
and prices, which are made at an early stage of ship design, can affect the outcome of the ship
design optimization procedure with respect to ship's life cycle cost. Therefore,
a stochastic optimization procedure is being applied, which is utilizing well
established optimization algorithms and techniques in a robust and efficient manner. Sample
results of this stochastic optimization are compared with solutions of a deterministic optimization
and eventually lead to a rational basis for the decision making regarding the life cycle
assessment of ship
investments.
CitacióPlessas, T.; Papanikolaou, A.D. Stochastic life cycle ship design optimization. A: MARINE VI. "MARINE VI : proceedings of the VI International Conference on Computational Methods in Marine Engineering". CIMNE, 2015, p. 266-277. ISBN 978-84-943928-6-3.
ISBN978-84-943928-6-3
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Marine-2015-21_STOCHASTIC LIFE CYCLE.pdf | 458,1Kb | Visualitza/Obre |