DETERMINATION OF LONG TERM DISTRIBUTION OF
STRESS RANGES FOR FATIGUE RELIABILITY
ANALYSIS OF A TLP DESIGNED FOR CAMPOS BASIN
Author(s)
Carlos Alberto Bardanachvili
Abstract
— The tension leg platform (TLP) is a type of structural system for
exploitation of oil and gas fields below sea floor and must be designed to avoid
fatigue damage due to cyclic action of sea waves. Fatigue is a phenomenon
which presents high randomness, making a probabilistic study of major
concern. In this work, a methodology to obtain the probability distribution
function of time to fatigue failure is applied to a point in the hull and to one
tendon of a TLP designed for Campos Basin, offshore Brazil.
The short term responses at these points are obtained through a stochastic
analysis in frequency domain and Miner's rule is used to assess the fatigue
damage. Long term statistics are introduced through a scatte
Keywords
Related Book
Other papers in this volume
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