A comparative method for scaling SOLAS collision damage distributions based on ship crashworthiness – application to probabilistic damage stability analysis of a passenger ship

Fabien Conti, Herve Le Sourne, Dracos Vassalos, Pentti Kujala, Daniel Lindroth, Sang Kim, Spyros Hirdaris

Research output: Contribution to journalArticleScientificpeer-review

Abstract

SOLAS2020 damage stability regulations are based on probabilistic damage distributions. Those originate from the pooled analysis of collision accidents across a fleet with bias towards cargo ships. This paper introduces a method that accounts for collision-based crashworthiness on ship damage distributions. The method reshapes statistical SOLAS damage distributions for a given ship or structural details for a reference ship section and her reinforced version. Damage reductions may differ depending on ship characteristics and operational scenarios. To mitigate this, a high number of collision scenarios was simulated using the super-element method. It is shown that risk control in terms of damage reduction over the whole range of damages is possible by adding a double hull or by deck reinforcement. Damage reduction is quantified by damage stability analysis of a cruise vessel. It is concluded that installing a double hull on ship vulnerable zones leads to increased A-index.
Original languageEnglish
Number of pages18
JournalShips and Offshore Structures
Early online date3 Jun 2021
DOIs
Publication statusPublished - 5 Jun 2021
MoE publication typeA1 Journal article-refereed

Keywords

  • Passenger ships
  • crashworthiness
  • collisions
  • damage stability
  • super-element method

Field of art

  • Design
  • Performance

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