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A model of significant wave height for reliability assessment of a ship

In English

Författare

Summary, in English

Significant wave heights are modeled by means of a spatial-temporal random Gaussian field. Its dependent structure can be localized by introduction of time and space dependent parameters in the spectrum. The model has the advantage of having a relatively small number of parameters. These parameters have natural physical interpretation and are statistically fitted to represent variability of observed significant wave height records. The fitted spatial-temporal significant wave field allows for prediction of fatigue accumulation in ship details and of extreme responses encountered. The method is exemplified by analyzing a container ship data relevant for North Atlantic trade and the results show a high agreement with actual on-board measurements. (C) 2013 Elsevier B.V. All rights reserved.

Publiceringsår

2014

Språk

Engelska

Sidor

109-123

Publikation/Tidskrift/Serie

Journal of Marine Systems

Volym

130

Dokumenttyp

Artikel i tidskrift

Förlag

Elsevier

Ämne

  • Probability Theory and Statistics

Nyckelord

  • Significant wave heights
  • Hundred years wave
  • Fatigue damage
  • Narrow
  • band approximation
  • Rainflow cycles
  • Level crossings

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0924-7963