Parameter space exploration for the probabilistic damage stability method for dry cargo ships

Bas Milatz, Roy de Winter, Jelle D.J. van de Ridder, Martijn van Engeland, Francesco Mauro, Austin A. Kana*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)
98 Downloads (Pure)


The prediction of the statutory attained subdivision index is a challenging issue for the initial design of ships due to the design freedom offered by a probabilistic damage stability assessment. To this end, optimisation techniques integrated with a parametric model of the internal layout may generate a preliminary subdivision design, fulfilling damage stability regulations and cargo volume requirements. The present study explores using a multi-objective constrained optimisation algorithm coupled with a parametric model of a single hold cargo vessel, first investigating two design goal alternatives and secondly performing a global sensitivity analysis on the design variables for the most promising solution. The adoption, in parallel, of state-of-the-art practices shows the validity of the obtained solutions and the time benefits for designers. Nonetheless, the non-linear nature of probabilistic damage stability does not allow for clearly identifying the most impactful parameters on the attained survivability index.

Original languageEnglish
Article number100549
Number of pages16
JournalInternational Journal of Naval Architecture and Ocean Engineering
Publication statusPublished - 2023


  • Damage stability
  • Global sensitivity analysis
  • Multi-objective optimisation
  • Parametric model
  • Ship design


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