Abstract
The concept of time-averaged motion is introduced to analyze the coupled ship maneuvering and seakeeping problem. Based on this concept, new equations of ship motion, referred to as time-averaged equations, are proposed for ship maneuvering prediction in waves. The present work is to describe and verify the new method. For the latter, the maneuverability of container ship S-175 in regular waves is predicted by solving the equations, where forces and wave-induced high-frequency motions are approximated by means of a modeling approach. The results are compared with available experimental data. It is indicated that the new method is very promising because satisfactory agreements are found between predictions and experiments. In addition, the influences of wave-induced high-frequency motions on maneuverability are analyzed and discussed.
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