The paper presents the sequential risk model of ship manoeuvring operations in the harbour. The risk of the sequence of manoeuvring procedures performed by a self-manoeuvring vessel in the harbour during approach, entry into the harbour and berthing inside the docks has been expressed as a function of the conditional probabilities of the sequential operations and their consequences.
The paper presents the study on the effectiveness of ship propulsion devices based on model tests conducted in the open water experimental set up. The influence of the water depth to draft ratio and distance from the vertical tight wall on the hydrodynamic forces generated by the propellers on the ship hull was investigated. The interaction effects observed for the twin propeller ship in bollard pull condition were compared with the effects induced by single propeller vessels available in literature and discussed with respect to the mathematical modelling of hydrodynamic forces generated on the hull by ship propulsion devices.
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