To improve the ship's anti-roll effect, a new idea is put forward that fin and flap fin are considered as two independent executing outfits to design the control strategy. The regressive method is adopted to found the mathematic models of hydrodynamic coefficient of fin/lap fin. The simulation model of disturbance moment of sea wave is also founded. The intelligent assignment rule of fin angle/flap-fin angle is designed by two steps. First, the system energy consumption is modeled from the angle of moments that fin servo system and flap fin servo system need overcome; second, the genetic algorithm is adopted to optimize the fin angle and flap-fin angle to minimize the system energy consumption. The simulation result show that it can enhance the fin's lifting ability remarkably to use the fin/flap fin joint control. In low sea situation, the system energy can be saved; and in high sea situation, it can improve ship's anti-roll effect. The research of this paper has some innovation and engineering application value.


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    Title :

    Fin/flap fin joint control for ship anti-roll system


    Contributors:
    Liu, Sheng (author) / Fang, Liang (author) / Li, Gao-yun (author) / Li, Bing (author)


    Publication date :

    2008


    Size :

    6 Seiten, 10 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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