PROBLEM TO BE SOLVED: To provide a stern shape of a ship which reduces a wave resistance at a stern of the ship in which a recess is formed on a stern bottom of a propeller upper part.SOLUTION: A ship bottom surface 2e constituting a stern tunnel 3 is formed in such a manner that the ship bottom surface is changed from an ascent inclination toward an upper part 2c of a propeller 4 from a forward ship bottom into a descent inclination toward a stern end 2a, an inflection part 3b which shifts from the ascent inclination to the decent inclination, is provided at a rear position with respect to the propeller 4, the ship bottom surface constituting the stern tunnel 3 in a part toward the stern end 2a from the inflection part 3b is maintained to the stern end, and a curvature degree of the recess in a cross sectional shape thereof is continuously reduced.SELECTED DRAWING: Figure 1

    【課題】プロペラ上部の船尾船底に凹部が形成されている船舶の船尾における造波抵抗を低減する船舶の船尾形状を提供する。【解決手段】船尾トンネル3を構成する船底面2eを、前方の船底からプロペラ4の上部2cに向かう上昇傾斜から船尾端2aに向かう下降傾斜に変化させて形成し、この上昇傾斜から下降傾斜に移行する変曲部3bをプロペラ4よりも後方の位置に設けているとともに、変曲部3bから船尾端2aに向かう部位における船尾トンネル3を構成している船底面を船尾端まで維持し、その横断面形状における凹部の湾曲度合を連続的に減少していくように形成している。【選択図】図1


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    Title :

    STERN STRUCTURE OF SHIP AND SHIP


    Additional title:

    船舶の船尾構造及び船舶


    Contributors:

    Publication date :

    2017-04-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



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