練習船「広島丸」の操縦運動シミュレーション : 第二報:実船試験結果との比較

概要

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This paper aims at offering clearer data for grasping the prediction accuracy of maneuvering motions for actual ship by the present simulation method. For the training ship "Hiroshima-Maru", the captive model test for grasping the hydrodynamic force characteristic was carried out, the simulation calculation model which made it the base was built, and various maneuvering simulation was carried out. The obtained simulation results were compared with the fullscale test results measured using KGPS. The knowledge obtained is as follows: The simulation method can roughly capture the usual maneuvering motions, such as turning motion and zig-zag maneuver. By rectifying a current, the prediction accuracy of the maneuvering motions improves. However, it was difficult to predict the turning trajectory within the accuracy of several meters, or the overshoot angle of zig-zag maneuver within the accuracy of several degrees. It is considered that the reason is due to the influence of the slight disturbance in the fullscale test or the defect of the current model or a rudder force model in the simulation method. The present simulation method needs to be improved.
社団法人日本船舶海洋工学会の論文
2005-03-20