To provide a steering system with a steering angle correction function of an uniaxial, two-rudder ship capable of correcting a steering angle considering external forces such as wind, waves, and tidal current acting on a hull.SOLUTION: A digital twin calculation part 291 collects an own ship speed, an own ship position, and an own ship bow azimuth in real time and reproduces the actual ship motion of the own ship realized by the current steering angle on an electronic navigational chart. A simulation calculation part 292 displays an assumed ship motion of the own ship obtained by the calculation on the electronic navigational chart assuming that the force acting on the hull is a driving force due to the current steering angle. A resultant force calculation part 293 of an external force calculates the direction and the magnitude of the resultant force of the external force acting on the hull based on the ship speed difference, the ship position difference, and the ship bow azimuth difference between the actual ship motion and the assumed ship motion. A commanded rudder angle calculation part 294 calculates a correction rudder angle for resisting the resultant force of the external force and calculates a proper steering angle by correcting the current steering angle with the correction rudder angle.SELECTED DRAWING: Figure 3

    【課題】船体に作用する風や波浪、海潮流等の外力を考慮して操舵角を補正することができる一軸二舵船の操舵角補正機能を有する操舵システムを提供する。【解決手段】デジタルツイン演算部291は、自船の船速と自船の船位と自船の船首方位をリアルタイムで収集し、現在操舵角において実現する自船の現実船体運動を航海用電子海図上に再現し、シミュレーション演算部292は、船体に作用する力が現在操舵角における駆動力であると想定して演算により求めた自船の想定船体運動を航海用電子海図上に表示し、外力の合力演算部293は、現実船体運動と想定船体運動における船速差、船位差、船首方位差に基づいて船体に作用する外力の合力の作用方向と大きさを算出し、指示舵角演算部294は、外力の合力に抗するための補正舵角を算出し、現在操舵角を補正舵角で補正して適正操舵角を算出する。【選択図】図3


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    Titel :

    STEERING SYSTEM WITH STEERING ANGLE CORRECTION FUNCTION OF UNIAXIAL, TWO-RUDDER SHIP


    Weitere Titelangaben:

    一軸二舵船の操舵角補正機能を有する操舵システム


    Beteiligte:

    Erscheinungsdatum :

    2023-03-03


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



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