The embodiment of the invention provides a transition section hollowed-out type annular propeller and a ship. The transition section hollowed-out type annular propeller comprises a set of annular propeller blades, a propeller hub and a set of hollowed-out holes. The annular propeller blade adopts a closed annular structure, is arranged on the outer surface of the propeller hub in a central symmetry manner, and comprises a blade front section, a blade transition section and a blade rear section; the positions of the blade front section, the blade transition section and the blade rear section are determined according to the characteristic that a roll angle is distributed along a pitch curve, and the blade transition section is connected with the blade front section and the blade rear section and used for restraining generation of tip vortex; the hollowed-out holes are located in the transition section of the propeller blade, grouped according to the positions and arranged between the high-pressure side and the low-pressure side of the transition section blade of the annular propeller. According to the technical scheme, the adverse effect caused by the'water holding 'effect of the transition section when the annular propeller works can be reduced, the phenomenon of irregular lateral unsteady force fluctuation is reduced, and vibration and noise reduction are achieved.

    本发明实施例提供一种过渡段镂空型环形螺旋桨及船舶,包括:一组环形螺旋桨桨叶、一个桨毂和一组镂空孔洞。所述环形螺旋桨桨叶,采用封闭环形结构,并以中心对称的方式排列在所述桨毂的外表面,包括:桨叶前段、桨叶过渡段和桨叶后段;所述桨叶前段、桨叶过渡段和桨叶后段的位置由侧倾角沿节距分布曲线的特点确定,所述桨叶过渡段连接所述桨叶前段和桨叶后端,用于抑制产生梢涡;所述镂空孔洞,位于桨叶过渡段位置,按位置分组,布置在所述环形螺旋桨过渡段叶片的高压侧和低压侧之间。本发明技术方案,能够减少环形螺旋桨工作时过渡段“兜水”效应带来的不利影响,减小不规则侧向非定常力波动的现象,实现减振降噪。


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    Title :

    Transition section hollowed-out type annular propeller and ship


    Additional title:

    一种过渡段镂空型环形螺旋桨及船舶


    Contributors:
    YE LIYU (author) / SUN HAODI (author) / WANG CHAO (author) / PAN ZHI (author) / ZHAO WEI (author) / LONG YUN (author) / LI HAO (author) / LIU SHUN (author)

    Publication date :

    2024-06-28


    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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