Benchmark Jacket Offshore - Comparison FRyDoM / DeeplinesWind¶
This benchmark is dedicated to the validation of the assembly of morison elements into an offshore jacket structure. Comparison with the restuls from DeeplinesWind [DLW2013] have been made.
The following figure shows a 3D representation of the jacket structure in FRyDoM.
The water depth is equal to 45m. The offshore jacket structure is 60m height and 15 m large at its base. The diameter of the legs of the structure are 0.12m and the diameters of the diagonal braces are 0.06m. For all elements, the drag coefficient cd = 1. and the inertia coefficient cm = 2.
The offshore jacket structure is fixed, mounted on the bottom. A regular wave with amplitude 0.1 m and 8s period is considered.
The following figure shows the time serie of the global hydrodynamic force on the jacket structure. Results are compared with the results from DeeplinesWind.