Log In    |    Join IASS    |    Online Journal    |    Proceedings    |    Directory    |    Events    |    News

Online IASS Proceedings

IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century


IASS Symposium 2016

SESSION: Computational Methods

Fatigue Damage Analysis of Semi-submersible Platform under Combined Wind &Wave Loads

< Table of Contents for Computational Methods
  • Proceedings Name: IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century
  • ISSN: (Electronic Version) 2518-6582
  • Session: Computational Methods
  • Pages: 10
  • Title: Fatigue Damage Analysis of Semi-submersible Platform under Combined Wind &Wave Loads
  • Author(s): Jin Ma, Dai Zhou, Xifeng Pan, Hongbo Zhu
  • Keywords: semi-submersible platform, mixture simulation method, the parametric model, fatigue damage
Abstract
Semi-submersible platforms operate under the combined actions of wind and wave loads with complex and changeable characteristics. This work is addressed to analyze fatigue damage of an integrated structure model, in which several methods are developed. An mixture simulation as well as a wind and wave coupling model are constructed to simulate combined wind and wave field accurately and efficiently. Formex algebra and the automatic replication technique are used to establish the parametric integrated model. The relationship between wind/wave and fatigue stress is presented to obtain the time histories of the hotspots・stresses. The fatigue damage of the hotspot is determined in different incident angles using the rain flow counting method and Miner criterion. Some simulation results are expected to provide important reference for the wind and wave resistant designs for offshore platform design.

Read the complete paper (pdf) (requires membership)
© IASS All rights reserved.
IASS · CEDEX - Laboratorio Central de Estructuras y Materiales · C/ Alfonso XII, 3 · 28014 Madrid, Spain     tel. 34 91 335-7409; fax: 335-7422
Site Design & Programming
by World Design Group, Inc.