ABSTRACT
In many ports terminals for big ships are located close to the port entrance and ships are moored very close to the navigational channels by which big ships are passing. Big ships passing close to the ships moored to quay walls create hydrodynamic interaction forces. Hydrodynamic interaction forces together with other external forces, created by wind, waves and current has negative influence on moored ships and quay walls. This article presents theoretical basis for the evaluation of external forces, created by hydrodynamic interaction by passing and moored to quay wall ships, wind, waves as well as currents acting on moored ships. The article also presents simulation and experimental results with real ships in real similar conditions. Klaipeda port oil terminal, which is located close to the port entrance and all ships enter and depart from the port through the port pass close to the ships moored to oil terminal quay walls, is taken as a case study. Calculation methods of the external forces on ships moored to a quay wall and practical recommendations, which can in-crease navigational safety of the ships moored to quay walls, are presented on the basis of theoretical calculations, simulation and experimental result analysis.
