Theoretical And Experimental Predictions Of The Dynamic Behavior Of Marine Risers

A comparison of theoretical predictions of the dynamic response of a riser model with experimental measurements is made. The theoretical estimates are obtained from the solution of the linearized structural model of a thin rod under tension. The model of the local hydrodynamic force is based on results from rigid and spring mounted cylinder experiments. The experimental measurements are obtained from a 3m flexible cylindrical model, representative of a shallow water riser. The comparison between theoretical estimates and experimental measurements can be used to evaluate the significance of the assumptions underlying the use of rigid cylinder experimental results for the prediction of the dynamic response of single tube marine risers.