The invention discloses a propeller punching method, a propeller with a hole and an underwater propelling device, and belongs to the technical field of underwater propelling devices.The method comprises the steps that the initial aperture ratio, the initial clearance ratio and the initial interval ratio are defined, the initial aperture ratio is the ratio of the radius of a round hole to the radius of a blade of the propeller, and the initial interval ratio is the ratio of the radius of the round hole to the radius of the blade of the propeller; the initial clearance ratio is the ratio of the clearance of the adjacent round holes to the blade radius of the propeller, and the initial interval ratio is the ratio of the distance from the center of the round hole to the propeller rotating shaft to the radius of the round hole; the initial aperture ratio, the initial gap ratio and the initial interval ratio are optimized with the cavitation volume variation and the hydrodynamic coefficient variation as optimization standards, and the optimal aperture ratio, the optimal gap ratio and the optimal interval ratio are obtained; and determining a punching scheme according to the optimal aperture ratio, the optimal gap ratio and the optimal interval ratio. According to the method, the punching scheme is determined by combining the aperture ratio, the clearance ratio and the interval ratio with the radius of the blade of the propeller, and the effect that the cavitation phenomenon is restrained by punching the propeller according to the unified punching criterion is achieved.
本申请公开了一种螺旋桨打孔方法、带孔螺旋桨及水下推进装置,属于水下推进装置技术领域,其方法包括:定义初始孔径比、初始间隙比和初始区间比,初始孔径比为圆孔半径与螺旋桨的叶片半径之比,初始间隙比为相邻圆孔的间隙与螺旋桨的叶片半径之比,初始区间比为圆孔孔心到螺旋桨转轴的距离与圆孔半径之比;以空泡体积变化量和水动力系数变化量为优化标准,对初始孔径比、初始间隙比和初始区间比进行优化,得到最优孔径比、最优间隙比和最优区间比;根据最优孔径比、最优间隙比和最优区间比确定打孔方案。本发明通过孔径比、间隙比和区间比结合螺旋桨的叶片的半径大小确定打孔方案,实现了根据统一的打孔准则对螺旋桨打孔抑制空化现象的效果。
Propeller punching method, propeller with hole and underwater propelling device
一种螺旋桨打孔方法、带孔螺旋桨及水下推进装置
16.05.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
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