ANALYSIS OF THE DYNAMIC BEHAVIOUR OF FLEXIBLE RISERS CONSIDERING HYSTERETIC DAMPING

摘要

This paper proposes a three-dimensional beam element that can predict the dynamic response of flexible risers considering their- bending hysteretic behaviour. The finite element implementation relies on a previously presented co-rotated beam finite element and an analytical formulation for determining the bending moment vs. curvature relationship for flexible risers. A comparison between the dynamic response predicted with the proposed finite element and the one obtained with the traditional approach was performed.