The invention belongs to the technical field of ships, and particularly discloses a stern structure and a ship. The stern structure comprises a hull stern part and a propeller, the diameter of the propeller is D, the hull stern part is integrally of a square stern part structure, the bottom of the hull stern part is provided with a concave fornix part, and the fornix part is located on the propeller. Two end points of the fornix part are respectively a point a and a point b, two intersection points of the contour line and the characteristic altitude line of the propeller are respectively a point e and a point s, the point a, the point s, the point e and the point b are sequentially arranged from the stern to the bow, the horizontal distance between the point a and the point s is La, the horizontal distance between the point b and the point e is Lb, the minimum distance between the highest point of the propeller and the fornix part is Lmin, La = (0.12-0.35) D, Lb > = 0.2 D, and Lmin = (0.14-0.35) D, preferably 0.3D. The ship comprises the stern structure. According to the stern structure and the ship, combination of the square stern and the large-diameter propeller can be better achieved, the resistance is reduced, and the propelling efficiency is improved.
本发明属于船舶技术领域,具体公开了一种船艉结构及船舶。船艉结构包括船体艉部和螺旋桨,螺旋桨的直径为D,船体艉部整体呈方形艉部结构,底部具有内凹的穹窿部,穹窿部位于螺旋桨的上方;穹窿部的两个端点分别为a点和b点,螺旋桨的轮廓线与特征高度线的两个交点分别为e点和s点,a点、s点、e点和b点沿船艉至船艏依次设置,a点与s点的水平间距为La,b点和e点的水平间距为Lb,螺旋桨的最高点与穹窿部的最小距离为Lmin,La=(0.12~0.35)D,Lb≥0.2D,Lmin=(0.14~0.35)D,以0.3D为宜。船舶包括上述的船艉结构。本发明公开的船艉结构和船舶,能够更好地实现方形船艉与大直径螺旋桨的结合,降低阻力,提高推进效率。
Stern structure and ship
一种船艉结构及船舶
2021-12-17
Patent
Elektronische Ressource
Chinesisch