This paper has given the minimum-time maneuvering methods in two kinds of typical shiphandling problems under conditions with wind disturbances, for a small training ship with a rudder, a controllable pitch propeller, and bow and stern thrusters. In the minimum-time deviation problem, it was concluded to be sufficient for a ship's master to pay attention only to maintaining the ship's course along the minimum solution with no wind, irrespective of how the winds are blowing. In this problem, furthermore, actual sea trials were implemented. As an interesting result, it was found that despite the intermediate paths in the tests being slightly different from the optimal solutions, there are no large differences at the final point in each case. In the problem of minimum-time inward stopping at a given position with the winds blowing on and blowing off, it was confirmed that from the viewpoint of shiphandling practice, the optimal solutions are reasonable maneuvering methods that make maximum use of the effects of the wind, especially in the minimum inward stopping problems with the wind blowing on.
Minimum-time maneuvereing of a ship, with wind disturbances
Zeitminimales Manövrieren eines Schiffes bei Windstörungen
Control Engineering Practice ; 4 , 3 ; 385-392
1996
8 Seiten, 16 Bilder, 1 Tabelle, 5 Quellen
Article (Journal)
English
Minimum Time Maneuvering of Ship With Wind Disturbances
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