阅读说明：本技术 一种分离式减摇鳍 (Disconnect-type stabilizer ) 是由 韩阳 王于 郭春雨 王超 徐菁菁 林健峰 钟若凡 赵旺 于 2019-09-29 设计创作，主要内容包括：本发明属于船舶航行技术领域,具体涉及一种分离式减摇鳍,由减摇鳍后部、上鳍面挡板、下鳍面挡板、连接板、减摇鳍前部、鳍轴、梯形尾部组成,其特征在于：减摇鳍前部的一端固定有鳍轴,减摇鳍前部通过连接板与减摇鳍后部固定在一起,减摇鳍后部远离连接板的一端固定有梯形尾部,减摇鳍后部的上表面和减摇鳍前部的上表面构成的上鳍面远离鳍轴的一端固定有上鳍面挡板,减摇鳍后部的下表面和减摇鳍前部的下表面构成的下鳍面远离鳍轴的一端固定有下鳍面挡板。本发明设计的减摇鳍在减摇鳍前部和减摇鳍后部中间有一定间隙,能够起到分流作用,减小翼尖涡流速度,减小阻力,提高升阻比,可以提高减摇效果。(The invention belongs to the technical field of ship navigation, and particularly relates to a separated fin stabilizer which comprises a fin stabilizer rear part, an upper fin surface baffle, a lower fin surface baffle, a connecting plate, a fin stabilizer front part, a fin shaft and a trapezoidal tail part, and is characterized in that: the fin shaft is fixed to the one end of fin front portion, and fin front portion is together fixed through connecting plate and fin rear portion, and the one end that the connecting plate was kept away from to fin rear portion is fixed with trapezoidal afterbody, and the one end that the fin shaft was kept away from to the last fin face that upper surface at fin rear portion and the anterior upper surface of fin constitute at fin rear portion is fixed with upper fin face baffle, and the one end that the fin shaft was kept away from to the lower fin face that the lower surface at fin rear portion and the anterior lower surface of fin constitute is fixed with lower fin face baffle. The fin stabilizer designed by the invention has a certain gap between the front part of the fin stabilizer and the middle part of the rear part of the fin stabilizer, and can play a role in shunting, reduce the wing tip vortex speed, reduce the resistance, improve the lift-drag ratio and improve the stabilizing effect.)

1. The utility model provides a disconnect-type stabilizer, comprises stabilizer rear portion (1), upper fin face baffle (2), lower fin face baffle (3), connecting plate (4), stabilizer front portion (5), fin axle (6), trapezoidal afterbody (7), its characterized in that: fin axle (6) are fixed with to the one end of fin front portion (5), fin front portion (5) are together fixed through connecting plate (4) and fin rear portion (1), the one end that connecting plate (4) were kept away from in fin rear portion (1) is fixed with trapezoidal afterbody (7), the one end that fin axle (6) were kept away from to the upper surface of fin rear portion (1) and the upper surface constitution of fin front portion (5) was gone up the fin surface is fixed with upper fin surface baffle (2), the one end that fin axle (6) were kept away from to the lower surface of fin rear portion (1) and the lower fin surface constitution of the lower surface of fin front portion (5) is fixed with lower fin surface baffle (3).

2. A split fin stabilizer according to claim 1, wherein: a gap exists between the front part (5) of the fin stabilizer and the rear part (1) of the fin stabilizer.

3. A split fin stabilizer according to claim 1, wherein: the upper fin surface baffle (2) and the lower fin surface baffle (3) are processed and have tip points and sweepback.

Technical Field

The invention belongs to the technical field of ship navigation, and particularly relates to a separated fin stabilizer.

Background

The boats and ships roll can seriously influence the security of boats and ships navigation and the travelling comfort of crew's work, and in order to reduce the influence that boats and ships roll brought, boats and ships stabilizer becomes for indispensable part in the ship design, has now developed nearly hundred kinds of stabilizers, but can the wide use be stabilizer, stabilizer cabin, bilge fossil fragments, wherein stabilizer fin stabilization effect is best. In 1985, the british "mary queen" ship performed fin stabilizer performance tests under heavy wind and wave conditions. When the fin is working, the roll angle of the ship is about 2 degrees on average, and when the fin is not working, the roll angle is 25 degrees. At present, the fin stabilizer has the best stabilizing effect of over 90 percent, is a stabilizing device which is suitable for all ship types and can effectively provide lift force, and can generate the lift force because the flow velocity of water flow on the upper fin surface and the lower fin surface is different, and the two fin surfaces can generate pressure difference so as to generate the lift force. However, the water flow at the free end of the fin will flow from the high pressure side to the low pressure side, and the water flow will be twisted to form a tip vortex near the fin tip due to backward flow and upward streaming. The lift force of the fin stabilizer is reduced, the resistance is increased, the higher the eddy speed is, the liquid is cavitated to cause the noise and the erosion of the fin surface, and the stabilizing effect and the sailing safety are influenced. The fin stabilizer is designed to be separated from the front and the back and a certain gap is reserved, so that the fin stabilizer can play a role in shunting, reduce the wing tip vortex speed, effectively reduce resistance and improve the stabilizing effect. The lift force generated by the separated stabilizer fin is larger than that generated by a common stabilizer fin, and the safety of the ship can be improved and the oil consumption can be reduced. Therefore, research on the split fin is necessary.

Disclosure of Invention

In order to solve a series of problems, the invention provides a separated fin stabilizer for reducing rolling of a ship.

The utility model provides a disconnect-type stabilizer, by stabilizer rear portion 1, go up fin face baffle 2, fin face baffle 3, connecting plate 4, stabilizer front portion 5, fin axle 6, trapezoidal afterbody 7 constitute, its characterized in that down: a fin shaft 6 is fixed at one end of the front part 5 of the fin stabilizer, the front part 5 of the fin stabilizer is fixed with the rear part 1 of the fin stabilizer through a connecting plate 4, a trapezoidal tail 7 is fixed at one end of the rear part 1 of the fin stabilizer, which is far away from the connecting plate 4, an upper fin surface baffle 2 is fixed at one end of the fin shaft 6, which is far away from an upper fin surface formed by the upper surface of the rear part 1 of the fin stabilizer and the upper surface of the front part 5 of the fin stabilizer, and a lower fin surface baffle 3 is fixed at one end of the lower fin surface formed by the lower surface of the rear part 1 of the fin stabilizer and the lower surface of the front part 5.

There is a gap between the fin front 5 and the fin rear 1.

The upper fin surface baffle 2 and the lower fin surface baffle 3 are processed and provided with tips and sweepbacks.

The invention has the beneficial effects that:

(1) the fin stabilizer designed by the invention has a certain gap between the front part of the fin stabilizer and the middle part of the rear part of the fin stabilizer, and can play a role in shunting, reduce the wing tip vortex speed, reduce the resistance, improve the lift-drag ratio and improve the stabilizing effect.

(2) The upper fin surface baffle and the lower fin surface baffle of the fin stabilizer designed by the invention are processed and have tip and sweepback, so that the resistance can be effectively reduced.

(3) The fin stabilizer designed by the invention has the advantages of low manufacturing cost, convenient maintenance and high reliability, and can be suitable for stabilizing any ship type.

Drawings

FIG. 1: the structure schematic diagram of the separated fin stabilizer;

FIG. 2: a top view of a split fin stabilizer;

FIG. 3: a left view of the split fin stabilizer;

FIG. 4: cross-sectional view of a split fin stabilizer.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

In the figure: 1-stabilizer fin rear part, 2-upper fin surface baffle, 3-lower fin surface baffle, 4-connecting plate, 5-stabilizer fin front part, 6-fin axis, 7-trapezoidal tail.

The invention discloses a separated fin stabilizer which comprises a fin shaft 6, a fin stabilizer front part 5, a fin stabilizer rear part 1, an upper fin surface baffle 2, a lower fin surface baffle 3, a connecting plate 4 and a trapezoidal tail part 7. The fin front part 5 with a fin shaft 6 at one end is connected with the fin rear part 4 through a connecting plate 4, the fin shaft 6 is connected on the ship body, the upper fin surface baffle 2 is arranged on the upper fin surface of the free end of the fin, and the lower fin surface baffle is arranged on the lower fin surface. The invention provides a separated fin stabilizer, wherein a certain gap is formed between the front part 5 of the fin stabilizer and the rear part 1 of the fin stabilizer, so that the effect of shunting can be achieved, the wing tip eddy speed is reduced, the resistance is reduced, the lift-drag ratio is improved, and the stabilizing effect can be improved.

The fin front part 5 and the fin rear part 1 and the connecting plate 4 are designed according to the actual operating conditions.

The upper fin surface baffle 2 and the lower fin surface baffle 3 are processed and have tip points and sweepback, so that the resistance can be effectively reduced.