The invention relates to a ship rudder. The rudder comprises a main rudder (1), two auxiliary rudders (2 and 3) and two supports (6 and 6'), wherein the two auxiliary rudders (2 and 3) are located onthe two sides of the main rudder (1) respectively, the main rudder (1) is connected with the auxiliary rudders through the supports, and the chord length and the height of the main rudder (1) are larger than those of the auxiliary rudders respectively. The two auxiliary rudders (2 and 3) are the same in side and are axisymmetric about the center of the main rudder (1). The pressure distribution condition of the surface of the ship rudder can be effectively improved, the initial speed of cavitation bubbles generated on the surface of the ship rudder is increased, the area of the cavitation bubbles of the ship rudder is reduced, the maintenance cost of the ship rudder is saved, the steering performance of the ship rudder is improved, the steering effect is improved, and the load of a steering engine is reduced.

    本发明涉及一种船舶舵,包括一个主舵(1)、两个辅舵(2、3)和两个支架(6、6′),所述的两个辅舵(2、3)分别位于主舵(1)的两侧,主舵(1)与辅舵通过支架连接,主舵(1)的弦长和高度都分别大于辅舵的弦长和高度,两个辅舵(2、3)的大小尺寸相同,且关于主舵(1)中心轴对称。本发明能够有效地改善船舶舵表面的压力分布情况,提高船舶舵表面产生空泡的初始速度,减少船舶舵空泡的面积,节约船舶舵的维修费用,提高船舶舵的转向性能,提高舵效,减轻舵机的负荷。


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    Title :

    Ship rudder with auxiliary rudders


    Additional title:

    一种具有辅舵的船舶舵


    Contributors:
    ZHU WENCAI (author) / HU GUOLIANG (author) / CHEN HUI (author) / HUANG QINGSHENG (author) / LI WANGDU (author) / JIANG LAI (author) / XU YUKUN (author) / MU XUESHAN (author)

    Publication date :

    2020-11-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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