In fire suppression, continuous delivery of water or foam to the fire source is essential. The present study concerns fire suppression in a ship under sea condition, by introducing reinforcement learning technique to aiming of fire extinguishing nozzle, which works in a ship compartment with six degrees of freedom movement by irregular waves. The physical modeling of the water jet and compartment motion was provided using Unity 3D engine. In the reinforcement learning, the change of the nozzle angle during the scenario was set as the action, while the reward is proportional to the ratio of the water particle delivered to the fire source area. The optimal control of nozzle aiming for continuous delivery of water jet could be derived. Various algorithms of reinforcement learning were tested to select the optimal one, the proximal policy optimization.


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    Titel :

    Application of reinforcement learning to fire suppression system of an autonomous ship in irregular waves


    Beteiligte:
    Eun-Joo Lee (Autor:in) / Won-Sun Ruy (Autor:in) / Jeonghwa Seo (Autor:in)


    Erscheinungsdatum :

    2020




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Unbekannt




    ON SHIP SURGING IN IRREGULAR WAVES

    Lipis, V. B. / Bulgaria Society of Naval Architects and Marine Engineers / National Committee of Theoretical and Applied Mechanics et al. | British Library Conference Proceedings | 1997


    On nonlinear ship motions in irregular waves

    Hasselmann, K. | Engineering Index Backfile | 1966



    Irregular Waves and Their Influence on Extreme Ship Motions

    De Kat, J. / Office of Naval Research; Mechanics and Energy Conversion S & T Division / National Research Council; Naval Studies Board | British Library Conference Proceedings | 1994


    Influence of principal dimensions on ship behaviour in irregular waves

    Swaan, W.A. | Engineering Index Backfile | 1961