An attempt to define critical wave and wind scenarios leading to capsize in beam sea

Jørgen Juncher Jensen, Ju-hyuck Choi, Hans Otto Holmegaard Kristensen, Ulrik Dam Nielsen, Henrik Erichsen, Erik I. Tvedt

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Abstract

The IMO Weather Criterion has proven to be the governing stability criteria regarding minimum GM for e.g. small ferries and large passenger ships. The formulation of the Weather Criterion is based on some empirical relations derived many years ago for vessels not necessary representative for current new buildings with large superstructures. Thus it seems rea-sonable to investigate the possibility of capsizing in beam sea under the joint action of waves and wind using direct time domain simulations. This has already been done in several studies. Here it is combined with the First Order Reliability Method to define possible combined critical wave and wind scenarios leading to capsize and corresponding probability of capsize. The results for a fictitious vessel are compared with Monte Carlo simulation and good agreement is found at a much lesser computational effort. Finally, the results for a large container vessel and a small ferry will be discussed in the light of the current weather criterion.
Original languageEnglish
Title of host publicationProceedings of the 13th International Symposium on Practical Design of Ships and Other Floating Structures (PRADS’2016)
EditorsUlrik Dam Nielsen, Jørgen Juncher Jensen
Number of pages7
PublisherTechnical University of Denmark
Publication date2016
ISBN (Electronic)978-87-7475-473-2
Publication statusPublished - 2016
Event13th International Symposium on Practical Design of Ships and Other Floating Structures (PRADS'2016) - Hotel Crowne Plaza, Copenhagen, Denmark
Duration: 4 Sep 20168 Sep 2016
Conference number: 13

Conference

Conference13th International Symposium on Practical Design of Ships and Other Floating Structures (PRADS'2016)
Number13
LocationHotel Crowne Plaza
CountryDenmark
CityCopenhagen
Period04/09/201608/09/2016

Keywords

  • Weather criteria
  • Wind loads
  • Wave loads
  • FORM
  • Capsize
  • Design Load scenarios

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