Side-by-side FLNG and shuttle tanker linear and second order low frequency wave induced dynamics

A Green׳s function panel method is used for the hydrodynamic calculations. The second order calculations are performed with an approximate method where the second order velocity potential is calculated without considering the forcing function on the free surface boundary condition. The irregular seas calculations are performed in the frequency domain. It is shown that the second order low frequency loads cannot be neglected when calculating the tension on the side by side mooring system.