Stochastic procedures for extreme wave induced responses in flexible ships

Jørgen Juncher Jensen, Ingrid Marie Vincent Andersen, Sopheak Seng

Research output: Contribution to journalJournal articleResearchpeer-review

464 Downloads (Pure)

Abstract

Different procedures for estimation of the extreme global wave hydroelastic responses in ships are discussed. Firstly, stochastic procedures for application in detailed numerical studies (CFD) are outlined. The use of the First Order Reliability Method (FORM) to generate critical wave episodes of short duration, less than I minute, with prescribed probability content is discussed for use in extreme response predictions including hydroelastic behaviour and slamming load events. The possibility of combining FORM results with Monte Carlo simulations is discussed for faster but still very accurate estimation of extreme responses. Secondly, stochastic procedures using measured time series of responses as input are considered. The Peak-over-Threshold procedure and the Weibull fitting are applied and discussed for the extreme value predictions including possible corrections for clustering effects.
Original languageEnglish
JournalInternational Journal of Naval Architecture and Ocean Engineering
Volume6
Issue number4
Pages (from-to)1148-1159
Number of pages12
ISSN2092-6782
DOIs
Publication statusPublished - 2014

Keywords

  • ENGINEERING,
  • PREDICTIONS
  • VALUES
  • TIME
  • FORM
  • Extreme value predictions
  • Stochastic processes
  • First order reliability method (FORM)
  • Peak-over-threshold
  • Monte carlo simulations

Fingerprint Dive into the research topics of 'Stochastic procedures for extreme wave induced responses in flexible ships'. Together they form a unique fingerprint.

Cite this