Despite being largely used to install flexible risers, neither the loads imposed by hydraulic collars nor the response of the flexible riser to these loads have been previously studied. Hence, this paper aims at presenting a finite element (FE) model to calculate not only the loads imposed by a typical hydraulic collar to a flexible riser, but also the response of this structure to the imposed loads. A 9,5″ flexible riser is analyzed and the obtained results are compared to the ones from experimental tests carried out by PETROBRAS and COPPE/UFRJ.
展开▼
