DNV—GL — FATIGUE METHODOLOGY OF OFFSHORE SHIPS

The publication is devoted to the fatigue methodology to be applied to the offshore vessels. The book opens with the list of definitions and Greek and Latin symbols followed with the brief but comprehensive overview of the hull fatigue analysis including the evaluation procedure, unit configuration, methodology of the spectral analysis, design fatigue factors and all other important aspects.

The next section is dealing with the selection of fundamental structural details to be used for the fatigue analysis; it is followed with the section providing the overview of the different modeling techniques including finite element methods, scantlings and FEM models, and it also covers the basic structural modeling principles, modeling of girders and stiffeners, mass modeling, model idealization, load transfer, extent of model etc.

The other sections of the document are dealing with the hydrodynamic loads, meteorological ocean criteria unit motion analysis, unit loading conditions, short term response analysis, general response, long term responses, hot spot analysis, fatigue design of the hull/turret interface and overview of the different designs and calculation methods, relevant documents and verification of fatigue analysis, fabrication issues, references and other useful information covering virtually all areas.