The invention relates to an energy-saving ship body line type suitable for a pure electric tug, which comprises a middle-high speed ship with the Froude number of 0.4 at the navigational speed, the designed draft square coefficient is 0.547, and the longitudinal position of the buoyancy center is-5.6%; the vertical line length Lpp is 31.5 m, the profile width B is 10.5 m, the design draft Td is 3.45 m, and the structural draft Ts is 3.6 m; the ship form is divided into 20 stations from the stem post to the plumb line; the ship type sequentially comprises a head inflow section and a tail outflow section from the bow to the stern and is not provided with a parallel middle body. The head part adopts a forward-inclined head form, a head part standing line is designed to be an invisible bulbous bow below a structural waterline, and a head part cross section line is U-shaped from a 17 station to a 20 station. After the head is optimized, the trough depth in the ship is reduced, wave making in the stern area is obviously improved, the pressure distribution of the optimized linear tail is more uniform, the negative pressure area at the waterline is reduced, the positive pressure area at the tail sealing plate is increased, and the viscous pressure resistance of the tail is reduced, so that the overall performance of the ship is improved.

    本发明涉及一种适用于纯电拖轮的节能船体线型,包括船型为航速下傅汝德数0.4的中高速船,其中设计吃水方形系数为0.547,浮心纵向位置为‑5.6%;垂线间长Lpp为31.5m,型宽B为10.5m,设计吃水Td为3.45m,结构吃水Ts为3.6m;船型自首柱至尾垂线共分为20站;船型自船首至船尾依次为首部进流段、尾部去流段、无平行中体;首部采用前倾型首形式,首部站线在结构水线以下采用隐形球首设计,在17站至20站首部横剖线呈“U”型。本发明首部优化后船中波谷深度降低,且船尾区域兴波有明显改善,优化线型尾部压力分布更均匀,在水线处的负压区域减小,在尾封板处正压区域增大,降低尾部粘压阻力从而提升船型整体性能。


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    Title :

    Energy-saving ship body line type suitable for pure electric tug


    Additional title:

    一种适用于纯电拖轮的节能船体线型


    Contributors:
    XU WEI (author) / DIAO FENG (author) / WEI JINFANG (author) / JEONG AN YEON (author) / WANG YANXIA (author) / HU SHILIANG (author)

    Publication date :

    2025-05-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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