Cristin-resultat-ID: 1178870
Sist endret: 31. mai 2017, 08:42
NVI-rapporteringsår: 2014
Vitenskapelig artikkel

Extreme Response Statistics of Fixed Offshore Structures Subjected to Ringing Loads

  • Oleg Gaidai og
  • Jørgen R Krokstad


Journal of Offshore Mechanics and Arctic Engineering
ISSN 0892-7219
e-ISSN 1528-896X
NVI-nivå 2

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2014
Publisert online: 2014
Trykket: 2014
Volum: 136
Hefte: 3
Artikkelnummer: OMAE-10-11


Scopus-ID: 2-s2.0-84994335174

Beskrivelse Beskrivelse


Extreme Response Statistics of Fixed Offshore Structures Subjected to Ringing Loads


This paper describes an efficient Monte Carlo based method for prediction of extreme response statistics of fixed offshore structures subjected to random seas. The nonlinear structural response known as “ringing” is studied, which is caused by the wave impact force on structural support units. Common challenge for design of such structures is a sound estimate of the hydrodynamic load including diffraction effects. The aim of the work was to develop specific methods which make it possible to extract the necessary information about the extreme response from relatively short time histories. The method proposed in this paper opens up the possibility to predict simply and efficiently both short-term and long-term extreme response statistics. The results presented are based on extensive simulation results for the large fixed platform operating on the Norwegian continental shelf. Structural response time histories, measured in MARINTEK (MT) wave basin lab, were used to validate numerical results.


Oleg Gaidai

  • Tilknyttet:
    ved Energi og transport ved SINTEF Ocean

Jørgen R Krokstad

  • Tilknyttet:
    ved Statkraft
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