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Multi-objective optimization of oil tanker design

Papanikolaou, Apostolos and Zaraphonitis, George and Boulougouris, Evangelos and Langbecker, U. and Matho, S. and Sames, P. (2010) Multi-objective optimization of oil tanker design. Journal of Marine Science and Technology, 15 (4). pp. 359-373. ISSN 0948-4280

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Parametric optimization was applied to a double-hull AFRAMAX tanker design in order to reduce oil-outflow probability and increase cargo carrying capacity, and the results are presented here. A multi-criteria optimization procedure was set up in modeFrontier ® using the cargo volume, the mean oil-outflow parameter and the steel weight of the cargo block as the objective functions. Calculations are based on a parametric geometric model of the ship created in NAPA ®, and on a structural model created in POSEIDON ®. Integration of the above software packages leads to an automated optimization procedure that provides improved feedback to the designer regarding the trade-off between the various design parameters and optimization criteria involved. The results obtained suggest notable improvements in transport capacity and oil-outflow performance for known, well-established yard designs. The presented work derives from a joint industrial project between Germanischer Lloyd (GL) and the Ship Design Laboratory of the National Technical University of Athens (NTUA-SDL), which continues the work done and coordinated by NTUA-SDL within the SAFEDOR project on the same subject.