出入港時の要素操船性能について-I : 出入港操船と要素操船性能

概要

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Many kinds of indices have been proposed to express ships' maneuverabilities, such as K, T values derived from well-known zig-zag tests, steady turning characteristics from spiral or reverse spiral tests and so on. These are very convenient for expressing ship abilities in simplified maneuvering motions. But it is easily understood that these are not adequate for performance indices of maneuvering motions in harbours. In the present report, a new concept is proposed to express maneuvering performances of ships in harbours. Gathering and analysing ship handling plans for approaching to and departing from many berths, it is pointed out that various maneuvering motions in harbour are classified into the following four groups: course keeping and course changing with/without speed change, turning and drifting to the lateral direction. Ship performances in these motions are called as "elemental performances of harbour maneuvers" in the present report. The performances are good indices for ship maneuverabilities in harbours.
社団法人日本航海学会の論文
1986-03-25