Characteristic Analysis of VIV-Induced Fatigue Damage of Top Tensioned Risers Based on Simplified Model-Reference-Cited by-同舟云学术

Characteristic Analysis of VIV-Induced Fatigue Damage of Top Tensioned Risers Based on Simplified Model

Published:2011-02-23 Issue:2 Volume:133 Page:
ISSN:0892-7219
Container-title:Journal of Offshore Mechanics and Arctic Engineering
language:en
Short-container-title:

Author:

Xue Hongxiang¹,Guo Jinting²,Tang Wenyong¹,Zhang Shengkun¹

Affiliation:

1. State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

2. Department of Naval Architecture and Marine Engineering, University of Michigan, Ann Arbor, MI 48109

Abstract

In this study, a simplified empirical model for fatigue analysis of top-tensioned risers due to vortex-induced vibration (VIV) in a nonuniform current is presented. Compared with previous studies on this subject, this model is able to take into account the main intrinsic nature of VIV for low mass ratio structures in lock-in regions, added mass, and nonlinear fluid damping. Based on the simplified model, a closed-form solution of fatigue damage is suggested for the case of a riser with uniform mass and cross-section oscillating in a uniform flow. Fatigue damage characteristics of the top-tensioned risers due to VIV are investigated to determine the effects of various ocean conditions and riser dimensions on fatigue damage.

Publisher

ASME International

Subject

Mechanical Engineering,Ocean Engineering

Link

http://asmedigitalcollection.asme.org/offshoremechanics/article-pdf/doi/10.1115/1.4002046/5931063/021304_1.pdf

Reference16 articles.

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4. A Prediction Model for Vortex-Induced Vibration of Slender Marine Risers;Pan;Journal of Ship Mechanics

5. Simplified Model for Evaluation of Fatigue From Vortex Induced Vibrations of Marine Risers;Baarholm

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