To provide an anchor dragging risk evaluation program, etc. for accurately evaluating an anchor dragging risk by accurately estimating a hull motion of a ship anchoring in stormy weather before anchoring and during anchoring.SOLUTION: A computer 10 is caused to execute: a data acquisition step S1 for acquiring ship data, drive means data, anchor/anchor chain data, meteorological/oceanographic data, anchorage data related to anchoring; an external force estimation step S2 for estimating external force applied to the hull by using the ship data and the meteorological/oceanographic data; a drive force estimation step S3 for estimating the drive force of the hull by using the ship data and the drive means data; an anchor chain tensile force estimation step S4 for estimating anchor chain tensile force of anchoring means by using the anchor/anchor chain data, the anchorage data, and a posture and a track of the hull in a previous time step; a posture/track calculation step S6 for calculating the posture and the track of the hull by applying the external force, the drive force, and the anchor chain tensile force to an equation of motion; and an output step S11 for outputting the calculated posture and track.SELECTED DRAWING: Figure 1

    【課題】錨泊前及び錨泊中において荒天時に錨泊する船舶の船体運動を高精度に推定して走錨リスクを精度よく評価する走錨リスク評価プログラム等を提供すること。【解決手段】コンピュータ10に、船舶データ、駆動手段データ、錨・錨鎖データ、気象・海象データ、及び錨泊に係る錨地データを取得させるデータ取得ステップS1と、船体に働く外力を船舶データと気象・海象データを用いて推定する外力推定ステップS2と、船体の駆動力を船舶データと駆動手段データを用いて推定する駆動力推定ステップS3と、錨手段の錨鎖張力を錨・錨鎖データ、錨地データ、及び一つ前の時間ステップにおける船体の姿勢と航跡とを用いて推定する錨鎖張力推定ステップS4と、外力と駆動力と錨鎖張力を運動方程式に適用し船体の姿勢と航跡を算出する姿勢・航跡算出ステップS6と、算出した姿勢と航跡を出力する出力ステップS11を実行させる。【選択図】図1


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    Titel :

    ANCHOR DRAGGING RISK EVALUATION PROGRAM, ANCHOR DRAGGING RISK EVALUATION SYSTEM, AND ANCHOR DRAGGING RISK AVOIDANCE SYSTEM


    Weitere Titelangaben:

    走錨リスク評価プログラム、走錨リスク評価システム、及び走錨リスク回避システム


    Beteiligte:

    Erscheinungsdatum :

    2021-10-11


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



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