Concept Design of OTEC System and Structural Analysis of a Large-Diameter Riser consisting of Laminated Composite

Abstract

A hybrid numerical scheme is developed to analyze the structural dynamic behavior of a large-diameter riser made of a laminated composite material. The global dynamic behavior of the riser, considered as a beam element subjected to a wave and current, is solved with the finite element analysis method in the time domain. For elements in large displacement and stresses estimated from the dynamic analysis, local structural analysis is performed with the finite element analysis method to examine the structural safety of the laminates of the composite riser. The developed hybrid numerical tool can contribute to structural safety verification of large-diameter risers composed of laminated compositesnd current, is solved with the finite element analysis method in the time domain.