RANDOM    FATIGUE   ANALYSIS    OF    A    STEEL
CATENARY   RISER   IN   FREQUENCY   AND   TIME
DOMAIN

Ana Lucia Fernandas Lima Torres; Marcio Martins Mourelle; Marcos Queija de Siqueira; Gilberto Bruno Ellwanger

doi:10.2495/OE970261

RANDOM FATIGUE ANALYSIS OF A STEEL CATENARY RISER IN FREQUENCY AND TIME DOMAIN

Price

Free (open access)

Transaction

WIT Transactions on The Built Environment

Volume

Pages

Published

1997

Size

1,054 kb

Paper DOI

10.2495/OE970261

WIT Press

Author(s)

Ana Lucia Fernandas Lima Torres, Marcio Martins Mourelle, Marcos Queija de Siqueira & Gilberto Bruno Ellwanger

Abstract

- The structural fatigue verification of a steel catenary riser model is performed by means of two random procedures of analysis. One of them is a nonlinear time-domain approach, based on simulation technique. The other one is a linearized frequency-domain approach, that considers that the structure presents a nonlinear static response and the dynamic response is almost linear around the static deformed configuration. Fatigue damage is calculated based on S-N curves and the Palmgren-Miner's rule. PETROBRAS in-house software were used for the analyses. Results are compared and commented. INTRODUCTION The steel catenary riser (SCR) was adopted by PETROBRAS S.A. as an alternative for the oil and gas exploitation

Keywords

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Code

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