操船シミュレータによる船の操縦性に関する2,3の実験

概要

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Some maneuvering experiments are carried out with a ship maneuvering simulator. Six 20,OOO DWT ships are selected as series test ships whose course stability is systematically varied. Firstly, results of computor simulations on automatic course-keeping in steady wind and random sea disturbances are discussed in comparison with the results of real ship measurement. Secondly, results of course-keeping test, path-keeping test and collision avoidance test conducted by captains are discussed emphasizing the relation between course stability of ship itself and maneuvering characteristics of man-machine control system. Principal conclusions obtained are as follows, ( 1 ) The increase of rudder area improves maneuverability in sea disturbances much more than the improvement of hull stability. ( 2 ) Hysterisis loop width within 2' does not render significant effect on maneuverability, if the rudder area is carefully chosen. ( 3 ) Maneuverability should be examined in circumstances that real ships experience as far as possible, because it is firmly affected by sea disturbances, geographical limi-tations of sea and control system in wheelhouse.
社団法人日本船舶海洋工学会の論文