PROBLEM TO BE SOLVED: To provide a stern rectification structure and a ship which improves efficiency of a propeller by rectifying a flow which is caused to flow into a propeller surface by the stern rectification structure provided on a stern of a hull, can improve propelling performance by enlarging a thrust component working on the stern rectification structure upon rectification and is also rigid structurally.SOLUTION: A stern rectification structure comprises an L-letter type stern rectification plate 5A and a thrust generation auxiliary member 5B. Therein, the L-letter type stern rectification plate 5A is provided so as to be protruded in a hull width direction on a shell plate of the stern of the hull 2 of a ship 1, a substrate part 10 extended in a hull width direction and a bent part 13 which is provided on an end part of the hull width direction of the substrate part 10 and is bent upward are provided, and the thrust generating auxiliary member 5B is provided between a lower part of the L-letter type stern rectification plate 5A and the hull 2 while setting an inclination angle α1 as such an angle that the outside proceeds upward with respect to horizontality is larger than 0° and 45° or less.SELECTED DRAWING: Figure 1
【課題】船体の船尾に設けた船尾整流構造によりプロペラ面に流入する流れを整流することにより、プロペラの効率をより高めると共に、整流する際に船尾整流構造に働く推力成分をより大きくして推進性能をより向上することができると共に、構造的にも強固な船尾整流構造及び船舶を提供する。【解決手段】L字型船尾整流板5Aと推力発生補助部材5Bとからなり、L字型船尾整流板5Aを、船舶1の船体2の船尾の外板上に船体幅方向に突出して設けられ、船体幅方向に延びる基板部分10と、この基板部分10の船体幅方向の端部に設けられた上方に折れ曲がった折り曲げ部分13を有して構成すると共に、推力発生補助部材5Bを、L字型船尾整流板5Aの下部と船体2の間に、傾斜角度α1を水平に対して外側が上方に向かう角度で0度よりも大きくかつ、45度以下にして設けて構成する。【選択図】図1
STERN RECTIFICATION STRUCTURE AND SHIP
船尾整流構造及び船舶
2017-05-25
Patent
Electronic Resource
Japanese
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |