CN202130569U - Marine rudder with protruding guiding edge - Google Patents
Marine rudder with protruding guiding edge Download PDFInfo
- Publication number
- CN202130569U CN202130569U CN201120097443U CN201120097443U CN202130569U CN 202130569 U CN202130569 U CN 202130569U CN 201120097443 U CN201120097443 U CN 201120097443U CN 201120097443 U CN201120097443 U CN 201120097443U CN 202130569 U CN202130569 U CN 202130569U
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- CN
- China
- Prior art keywords
- rudder
- guide margin
- cross
- marine
- margin projection
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides a marine rudder with a protruding guiding edge comprising a rudder seat, a main rudder, a rudder shaft and a transmission shaft. The rudder seat is fixedly disposed on a stern bottom plate, and the main rudder is connected with the rudder seat. The rudder shaft and the transmission shaft are disposed in the rudder seat. The rear end of the main rudder is in the shape of the protruding guiding edge. The edges of the cross section of the protruding guiding edge are constituted by sine curves and line segments. The cross section between the part having the maximum thickness and the protruding guiding edge is in an elliptical shape. By using the marine rudder with the protruding guiding edge, under the precondition of guaranteeing the good operation performance of normal marine rudders, the concavo-convex leading edge can be used to generate whirlpools rotating reversely, the rotating whirlpools can be used to inject power into the liquid flow to enable the liquid flow to attach to the wall surface tightly, thereby the stalling at high incidence angles can be delayed, the lifting power can be increased, and the energy can be saved.
Description
Technical field
The utility model relates to a kind of rudder of ship domain.
Background technology
The effect of rudder mainly is the maneuvering performance that guarantees boats and ships; Boats and ships navigate by water in wave; How to reduce resistance and improve the focus direction that lift is research; Delay angle of stall(ing) and can improve lift and have very big research space, the marine rudder that exploitation reduces resistance and improves lift is to be necessary very much with very significant.
Summary of the invention
The stall when thereby the purpose of the utility model is to provide the whirlpool that can produce contrarotation to delay the high angle of attack, increase a kind of marine rudder of lift, energy savings with guide margin projection.
The purpose of the utility model is achieved in that
A kind of marine rudder of the utility model with guide margin projection; Comprise rudder base, main rudder, rudderpost, transmission shaft, the rudder base is fixed on the stern base plate, and main rudder links to each other with the rudder base; Rudderpost and transmission shaft are installed in the rudder base; It is characterized in that: the rear end of main rudder is the guide margin shape for lugs, and the limit of the cross-sectional plane of described guide margin projection is made up of sine curve and line segment, and the cross-sectional plane between maximum ga(u)ge place and the guide margin projection is an elliptical shape.
The utility model can also comprise:
1, the ellipse short shaft of the cross-sectional plane between described maximum ga(u)ge place and the guide margin projection is 1/2 of a maximum ga(u)ge director degree, transverse be standard rudder leading edge to maximum ga(u)ge place distance with the curve wave height with.
2, the sine curve of described guide margin projection cross-sectional plane is two half-wavelengths or four half-wavelengths, and each wavelength and wave amplitude equate respectively.
3, the sine curve of described guide margin projection cross-sectional plane wavelength, the equivalent increase of wave amplitude from top to bottom, and described sine curve is half wavelength.
The advantage of the utility model is: guaranteeing to have under the prerequisite of the good maneuvering performance of common marine rudder; The concavo-convex whirlpool that can produce contrarotation of leading edge; The whirlpool of rotation injects power in flow, this can make flow be close to wall, the stall when making it delay the high angle of attack; Increase lift, energy savings.
Description of drawings
Fig. 1 is the schematic layout pattern of facing of the utility model;
Fig. 2 is an A-A1 section schematic layout pattern;
Fig. 3 separates scheme drawing for incoming flow;
Fig. 4 is the concavo-convex curve synoptic diagram of embodiment 1 marine rudder leading edge;
Fig. 5 is the concavo-convex curve synoptic diagrams of embodiment 2 marine rudder leading edges;
Fig. 6 is the concavo-convex curve synoptic diagrams of embodiment 3 marine rudder leading edges.
The specific embodiment
For example the utility model is done description in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1～6; The utility model basic structure comprises rudder: 2, main rudder 3, rudderpost 4, transmission shaft 5, and rudder base 2 is fixed on the stern base plate 1, and main rudder 3 links to each other with rudder base 2; Rudderpost 4 is installed in 2 li in rudder base with transmission shaft 5; The rear end of main rudder 3 is guide margin projection 6 shapes, and the limit of the cross-sectional plane of described guide margin projection 6 is made up of sine curve and line segment, and the cross-sectional plane between maximum ga(u)ge place and the guide margin projection 6 is an elliptical shape.
The ellipse short shaft of the cross-sectional plane between maximum ga(u)ge place and the guide margin projection 6 is 1/2 of a maximum ga(u)ge director degree, transverse be standard rudder leading edge to maximum ga(u)ge place distance with the curve wave height with.
Principle with marine rudder of guide margin projection is:
(1) power of hull passes to main rudder 3 by transmission shaft 5, the incoming flow rudder surface of flowing through.
(2) the leading edge projection that has a definite shape can produce the whirlpool of contrarotation, and the whirlpool of rotation injects power in flow, and this can make flow be close to wall, and the stall when such effect makes it delay the high angle of attack increases lift and reduces resistance simultaneously.
(3) can use software of calculation according to the different operating modes (difference is advanced the speed and the angle of attack) of rudder, draw the curve of the angle of attack and lift coefficient, drag coefficient and 1ift-drag ratio.
Moving behind the whirlpool that rudder produces is the important phenomenon of the utility model, for improving lift room for improvement is provided.This marine rudder has the good characteristics of simple in structure, energy-conservation drag-reduction effect, on surface vessel and the latent device of submarine, has favorable actual application prospect in the future.
Embodiment 1: as shown in Figure 4, on above-mentioned basic structure basis, the sine curve of guide margin projection 6 cross-sectional planes is wavelength, the equivalent increase of wave amplitude from top to bottom, and sine curve is half wavelength.
Embodiment 2: as shown in Figure 5, on the basic structure basis, the sine curve of guide margin projection 6 cross-sectional planes is two half-wavelengths, and each wavelength and wave amplitude equate respectively.
Embodiment 3: as shown in Figure 6, on the basic structure basis, the sine curve of guide margin projection 6 cross-sectional planes is four half-wavelengths, and each wavelength and wave amplitude equate respectively.
Claims (5)
1. marine rudder with guide margin projection; Comprise rudder base, main rudder, rudderpost, transmission shaft, the rudder base is fixed on the stern base plate, and main rudder links to each other with the rudder base; Rudderpost and transmission shaft are installed in the rudder base; It is characterized in that: the rear end of main rudder is the guide margin shape for lugs, and the limit of the cross-sectional plane of described guide margin projection is made up of sine curve and line segment, and the cross-sectional plane between maximum ga(u)ge place and the guide margin projection is an elliptical shape.
2. a kind of marine rudder according to claim 1 with guide margin projection; It is characterized in that: the ellipse short shaft of the cross-sectional plane between described maximum ga(u)ge place and the guide margin projection is 1/2 of a maximum ga(u)ge director degree, transverse be standard rudder leading edge to maximum ga(u)ge place distance with the curve wave height with.
3. a kind of marine rudder with guide margin projection according to claim 1 and 2 is characterized in that: the sine curve of described guide margin projection cross-sectional plane is two half-wavelengths or four half-wavelengths, and each wavelength and wave amplitude equate respectively.
4. a kind of marine rudder with guide margin projection according to claim 1 and 2 is characterized in that: the sine curve of described guide margin projection cross-sectional plane is wavelength, the equivalent increase of wave amplitude from top to bottom, and described sine curve is half wavelength.
5. a kind of marine rudder with guide margin projection according to claim 3 is characterized in that: the sine curve of described guide margin projection cross-sectional plane is wavelength, the equivalent increase of wave amplitude from top to bottom, and described sine curve is half wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120097443U CN202130569U (en) | 2011-04-06 | 2011-04-06 | Marine rudder with protruding guiding edge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120097443U CN202130569U (en) | 2011-04-06 | 2011-04-06 | Marine rudder with protruding guiding edge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202130569U true CN202130569U (en) | 2012-02-01 |
Family
ID=45519349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120097443U Expired - Lifetime CN202130569U (en) | 2011-04-06 | 2011-04-06 | Marine rudder with protruding guiding edge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202130569U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102180255A (en) * | 2011-04-06 | 2011-09-14 | 哈尔滨工程大学 | Marine rudder with guide edge bump |
| CN102991658A (en) * | 2012-12-06 | 2013-03-27 | 哈尔滨工程大学 | Bionic propeller of ship |
| CN107264717A (en) * | 2017-06-06 | 2017-10-20 | 哈尔滨工程大学 | A kind of bionical hydrofoil suitable for foilcraft |
| CN112231828A (en) * | 2020-11-10 | 2021-01-15 | 哈尔滨工业大学 | Leading edge combined convex structure for controlling adhesion flow of airfoil surface and flow control method thereof |
-
2011
- 2011-04-06 CN CN201120097443U patent/CN202130569U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102180255A (en) * | 2011-04-06 | 2011-09-14 | 哈尔滨工程大学 | Marine rudder with guide edge bump |
| CN102991658A (en) * | 2012-12-06 | 2013-03-27 | 哈尔滨工程大学 | Bionic propeller of ship |
| CN102991658B (en) * | 2012-12-06 | 2015-09-30 | 哈尔滨工程大学 | Bionic propeller of ship |
| CN107264717A (en) * | 2017-06-06 | 2017-10-20 | 哈尔滨工程大学 | A kind of bionical hydrofoil suitable for foilcraft |
| CN112231828A (en) * | 2020-11-10 | 2021-01-15 | 哈尔滨工业大学 | Leading edge combined convex structure for controlling adhesion flow of airfoil surface and flow control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120201 Effective date of abandoning: 20130605 |
|
| RGAV | Abandon patent right to avoid regrant |