高精度船体運動計測システムの開発 : 九軸&方位センサーの利用とデータ収集システムの構築

概要

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This paper deals with a measuring system with a high degree of accuracy for ship motions. This system is constructed with four units (computer unit, gyroscope unit, GPS unit and rudder angle & tachometer unit). The gyroscope unit particularly accomplishes to measure stabilized pitch, roll, yaw, sway, surge and heave with accuracy in a dynamic environment. The DMU-AHRS (nine-axis dynamic measurement unit with attitude and heading reference system) is adopted, which uses the three-axis accelerometer and three-axis rate sensor. The addition of three-axis magnetometer also allows the DMU-AHRS to make a true measurement of magnetic heading. A series of experiments are executed with a high-speed boat (Kyushu University fisheries research ship) at sea in order to survey the capacity, the reliability, the handiness and the robustness of the measuring system. The experiments include the inclining experiment, the free rolling experiment, the speed trial, the measurement of maneuverability and the measurement of ship motions forced by successive rudder movements. It is certified that the measuring system shows highly efficiency, good reliability, simple operability and suitable robustness.
社団法人日本船舶海洋工学会の論文
2001-03-12