## Hydrodynamic effect of heave motion on slow drift oscillation considering finite amplitude motions of a floating body

The authors propose a numerical simulation model to calculate slow drift oscillations taking into account the finite large-amplitude motion of two-dimensional moored floating bodies. The numerical model is based on the Boundary Element Method (BEM) of solving Poisson`s equation in time domain and is dealt with as a moving boundary-value problem. A mixed Lagrangian-Eulerian description is applied to trace particles of a material distributed on the moving free surface. The authors introduce into their model certain innovations, namely: (1) a numerical algorithm for finite large-amplitude motions of a floating body including both the slow drift oscillatory motion due to slowlymore »