Numerical assessment of marine hose load response during reeling and free-hanging operations under Ocean waves

Abstract

In recent times, the need for sustainable fluid transfer has necessitated the application of bonded hoses and composite risers. It has been considered increasingly within the marine-offshore industry, with advances in loading/offloading operations, and newer offshore platforms. This paper presents a reeling study under different operational and environmental conditions. In this study, finite element modelling (FEM) was used for the design of marine bonded reeling hoses, and two wave spectra were applied to two reeling hose operations. The design assessed the load response of the marine bonded hoses during two different operations, including free-hanging (static) and reeling (dynamic/loading), and assessments were made for reinforced and mainline hoses. The findings aid an understanding on the load response, tension profiles, stress profiles, strain distribution and hose curvature of marine reeling hoses. The study showed different fluid contents affect the performance of the hose differently parametrically. It justifies the use of design specifications for reeling hose under the operation modes for marine application. The recommendations obtained from this study can assist in developing standards and guidance for use by marine hose designers and manufacturers.