The invention provides a blade, a propeller, a power propelling device and a ship, and relates to the technical field of propeller noise control, and the blade comprises a blade root, a blade body and a blade tip which are connected in sequence; the blade body is provided with a first pressure surface and a first suction surface which are oppositely arranged, and in the rotating process of the paddle, fluid can flow from the position of the first pressure surface to the position of the first suction surface; at least a portion of the blade tip is curved toward the first pressure surface. According to the technical scheme, at least one part of the blade tip is bent towards the first pressure surface of the blade body, so that the design mode is beneficial to structural optimization of the blade tip, vortex-induced resonance can be inhibited to a great extent, and noise pollution is reduced.

    本发明提供了一种桨叶、螺旋桨、动力推进装置和船舶,涉及推进器噪声控制技术领域,其中桨叶包括依次连接的叶根、叶身和叶梢;叶身具有相对设置的第一压力面和第一吸力面,在桨叶转动的过程中,流体能够由第一压力面的位置向第一吸力面的位置流动;叶梢的至少一部分朝向第一压力面弯曲。本发明的技术方案中,叶梢的至少一部分朝向叶身的第一压力面弯曲,这种设计方式,有利于对叶梢进行结构优化,在很大程度上能够抑制涡激共振,并减少噪声污染。


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    Title :

    Blade, propeller, power propulsion device and ship


    Additional title:

    桨叶、螺旋桨、动力推进装置和船舶


    Contributors:
    TAN YUHANG (author) / TIAN BO (author) / PENG WEICAI (author) / XING JUNHUA (author) / YAO SHIHUI (author)

    Publication date :

    2025-03-21


    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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