A lower convex shuttle-shaped double-tail-fin ship-shaped line structure comprises a ship body, shuttle-shaped double tail fins are arranged at the bottom of the ship body, the shuttle-shaped double tail fins protrude downwards to form the lower convex shuttle-shaped double tail fins, and contour lines of the lower convex shuttle-shaped double tail fins comprise a double-tail-fin-shaped line bottom line, inner and outer bevel lines and a tail end round line. The double-tail-fin molded line bottom line and the inner and outer bevel line are arc-shaped smooth curves, the tail end round line is a straight line section, and the inner and outer bevel line is a line for connecting the lower convex shuttle-shaped double tail fins and the main hull; the upward view contour line of the lower convex shuttle-shaped double-tail fin is in a shuttle shape with two sharp and long ends; the maximum width A of the lower convex shuttle-shaped double tail fins is 1.2-1.5 times of the width of the gearbox, and the maximum height B of the lower convex shuttle-shaped double tail fins is 1.2-1.5 times of the height of the outer contour below the center line of the output shaft of the gearbox. The device is suitable for ships with small ship draft depth and large main engine power and ship types provided with large-diameter propellers, the installation position of the main engine is lowered so that the main engine can operate stably, and a large space can be vacated in a cabin.

    一种下凸梭形双尾鳍船型线结构,包括船体,船体的底部设有梭形双尾鳍,梭形双尾鳍向下凸起形成了下凸梭形双尾鳍,下凸梭形双尾鳍的轮廓线包括双尾鳍型线底线、内外折角线和尾部端圆线,双尾鳍型线底线和内外折角线均为弧形光顺曲线,尾部端圆线为直线段,内外折角线为下凸梭形双尾鳍与主船体连接的线;下凸梭形双尾鳍仰视轮廓线为两头尖长的梭形;下凸梭形双尾鳍的最大宽度A等于1.2~1.5倍齿轮箱的宽度,下凸梭形双尾鳍的最大高度B等于1.2~1.5倍齿轮箱输出轴中心线以下外轮廓的高度。本发明适用于船舶吃水深较小,主机功率较大的船舶且具有安装大直径螺旋桨的船型,降低主机安装位置使其运行平稳,又能使机舱腾出较大空间。


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    Title :

    Downward-convex shuttle-shaped double-tail-fin ship-shaped line structure


    Additional title:

    一种下凸梭形双尾鳍船型线结构


    Contributors:
    YAO ZHIHENG (author) / ZHENG SHUYU (author) / YAO FENG (author)

    Publication date :

    2024-10-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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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