Fluid sloshing in containers is modeled using a finite element formulation
previously proposed by the authors for problems with moderate motions [1], extending
in this work its application to arbitrarily large rotations and small deformations relative
to a floating frame of reference moving with the fluid. This novel approach is used to
investigate the coupling effects originated by the incidence of environmental sea waves
on rigid floating vessels with internal flexible structural parts and fluids oscillating inside
rigid or flexible tanks
