Análise estrutural de risers para águas profundas
ln this work a finite element formulation is presented for the dynamic and static analysis of deep water risers, taking into account many of the characteristics that are specific for this kind of structure. The theory, the brief deduction of the element matrices and the proceedings adopted are presented here. The influence of weight, internal fluid and upthrust on the riser structural behaviour and the calculation of current and wave forces are also studied. Based on these points, two computer programs were prepared, one for the static study and other for the dynamic study, and many cases of risers subjected to waves, currents and imposed displacements on the upper node were analyzed. Afterwards, the results were compared to others related to this area of study.
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