CN102245470A - Rudder with asymmetric cross section - Google Patents
Rudder with asymmetric cross section Download PDFInfo
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- CN102245470A CN102245470A CN2009801496336A CN200980149633A CN102245470A CN 102245470 A CN102245470 A CN 102245470A CN 2009801496336 A CN2009801496336 A CN 2009801496336A CN 200980149633 A CN200980149633 A CN 200980149633A CN 102245470 A CN102245470 A CN 102245470A
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- rudder
- guide lug
- sectional plane
- cross
- ships
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
- B63H25/06—Steering by rudders
- B63H25/38—Rudders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
- B63H25/06—Steering by rudders
- B63H25/38—Rudders
- B63H2025/388—Rudders with varying angle of attack over the height of the rudder blade, e.g. twisted rudders
Abstract
The present invention relates to a rudder with an asymmetric cross section More specifically, the invention is aimed at providing the rudder with an asymmetric cross section, which is characterized by forming the front of the rudder to be streamlined in order to improve the performance of a ship and the cavitation of the rudder and to simplify manufacturing and maintenance of the rudder. Wherein, the rudder installed on the rear of a ship is further characterized in that the top portion of the front of the rudder is slanted toward the port side, with respect to a rotation shaft of the rudder or a vertical axis center line of the propeller at an angle ranging from 5.0-1.5 to 5.0+1.5 degrees while the bottom portion of the front of the rudder is slanted toward the starboard side with respect to a rotation shaft of the rudder or a vertical axis center line of the propeller at an angle ranging from 5.0-1.5 to 5.0+1.5 degrees. In addition, the front of the rudder is formed on a connection line connecting the top, middle, and bottom portions of the front of the rudder.
Description
Technical field
The present invention relates generally to rudder with non-symmetrical cross-sectional plane, more specifically, relate to a kind of rudder with non-symmetrical cross-sectional plane, this rudder with non-symmetrical cross-sectional plane is arranged so that the top of guide lug (leading edge) of this rudder and bottom are respectively with respect to the S. A. of rudder alternately aport and starboard list, and the guide lug of described rudder is formed on the connection lead of straight line, and this connection lead is connected to each other described top and described bottom.
Background technology
Recently, the interest of the growth of ship operation research about the rudder of devise optimum and the Research on ability of determining to belong to the steering gear (rudder steering gear) of operability have been promoted.And, make because the interest of the minimise wear of the rudder that cavitation (cavitation) produces is also increasing.
Usually, the reason of damaging rudder is divided into the cavitation of tip vortex cavitation (tip vortex cavitation) and hub vortex cavitation (hub vortex cavitation) and described rudder self, described tip vortex cavitation and hub vortex cavitation cause by propelling unit, and the cavitation of described rudder self is by the increase of the increase of the flow velocity of going into jet (incident current) or incident angle (incident rate) and produce.
The top of rudder is damaged by tip vortex cavitation usually.The corresponding part of rudder and propeller shaft center is mainly damaged by the hub vortex cavitation.And under special circumstances, the top of rudder and bottom may be damaged by the cavitation of rudder self, and the guide lug of the bottom of rudder is damaged by base plate cavitation (sole cavitation).The damage of the rudder that these cause owing to cavitation is different and different according to the type of the reason of cavitation and cavitation.Thereby, at first must analyze the mechanism that various cavitation behaviors (cavitation behavior) and research cavitation produce.
At present, carried out basic investigation, and obtained satisfied result about the cavitation behavior from various angle.But,, be difficult to Accurate Analysis cavitation behavior under the streamflow regime of complexity, the cavitation behavior when for example rudder is arranged on propelling unit because the scope of these researchs only limits to the zone of cavitation generation or the size of cavitation.
In addition, along with the trend of present increase dimension of ship and speed, improve operability and also increasing corresponding to the interest of the performance of definite steering gear of the increase of the moment of rudder.But, because angle of rake rotation, so it is very complicated to form the flow field in the zone that rudder moves.Thereby, be difficult to the rudder that numerical analysis accurately moves past bigger angle.Therefore, be difficult to determine the optimal performance of steering gear equally.Thereby, determined described optimal performance with reference to existing boats and ships.
In order to overcome the problems referred to above, the several different methods of the moment of definite rudder has been proposed.But, owing to multiple reason (as scale effect (scale effect), the interference effect of hull, propelling unit and rudder etc.), compare with trial voyage or flight (trial voyage) result of actual boats and ships, there is big relatively error.
Under the situation that boats and ships are advanced by propelling unit, rudder is arranged in angle of rake slip-stream (slipstream) to increase the speed ability and the operability of boats and ships.For example, in the situation of the part above the center of rudder at angle of rake axle, if the propelling unit right-hand revolution, because in the propelling unit rotative component from left to right and the summation of the speed of boats and ships, described slip-stream would enter in the rudder, as shown in Fig. 3 a.In the situation of the part of the central lower of propeller shaft, owing to summation and speed of the ship in meters per second at propelling unit rotation rotative component from right to left, described slip-stream enters in the rudder, as shown in Fig. 3 b at rudder.Described slip-stream enter different and different according to kind, engine horsepower and the angle of rake shape of boats and ships of angle of incidence in the rudder.Described angle of incidence is also according to the difference of angle of rake radius and difference.According to the difference of incident angle, the augmented thrust of boats and ships is different with the cavitation that centers on rudder.
Although be used for the cross-sectional plane that the representative type rudder of boats and ships has symmetry, as shown in Fig. 4 a, preferably, rudder has non-symmetrical cross-sectional plane, as shown in Fig. 4 b or Fig. 4 c, with performance that strengthens boats and ships and the cavitation that prevents to center on rudder.But, in the situation of the cross-sectional plane of the rudder of Fig. 4 c, with the corresponding position, center of angle of rake axle on formed discontinuous surface.Shunting (flow separation) and cavitation produce around this discontinuous surface, thus the discontinuous surface of corrosion rudder.Because these problems suppress the navigation of boats and ships, so require periodical maintenance and repairing.In the situation of Fig. 4 b, the guide lug of rudder be shaped as non-rectilinear, make that the process of making rudder is very complicated.
Reference numeral 61 refers to the guide lug line of representative type rudder, direction consistent with central axis this rudder from bow side (bow side) of this guide lug line and rudder.Reference numeral 62 refers to the guide lug line of wake flow (wake current) adaptive rudder (adaptive rudder).Reference numeral 63 refers to the costa of fixed angle formula.
Summary of the invention
Correspondingly, the present invention considers the problems referred to above that occur in the prior art, the purpose of this invention is to provide a kind of rudder, this rudder has the guide lug of non-symmetrical cross-sectional plane and straight line, thereby strengthen the speed ability of boats and ships, and prevent the cavitation around rudder, and described rudder is arranged so that as above and helps making rudder and help maintenance and repair.
Another object of the present invention provides a kind of rudder, this rudder has non-symmetrical cross-sectional plane, this non-symmetrical cross-sectional plane can strengthen or keep the key property of rudder, improve moment properties, reduce the damage that causes owing to cavitation, and the design that this asymmetrical cross-section has optimization is adapted to use in actual boats and ships.
To achieve these goals, the invention provides a kind of rudder, this rudder is arranged on the stern of boats and ships.When will length being made as the X-axis of coordinate for from 0 to 1 from the guide lug of described rudder to the trailing edge (trailing edge) of this rudder, and the thickness ratio (thickness ratio) of described rudder on S. A. is made as 1, and when being expressed as the dimensionless number of form-1 as the thickness ratio of the described rudder of function of X-axis coordinate, described rudder has basic cross-sectional plane, and this basic cross-sectional plane satisfies the dimensionless number of form-1 in ± 0.5% error limit.The centre of gration of the cross-sectional plane of described rudder from described guide lug to described rudder has non-symmetrical shape, and the cross-sectional plane of described rudder has the shape of symmetry from described centre of gration to described trailing edge.Jue Ding described asymmetrical shape in the following way: the described basic cross-section center point of described rudder is formed on the X-axis coordinate, thickness maximum at the described rudder of central spot, the described basic cross-sectional plane of described rudder is along the predetermined predetermined angle of direction rotation, described predetermined direction is corresponding with angle of rake hand of rotation, the distance decision of the Center Gap of described predetermined angle and described propelling unit S. A., and the centre of gration of described cross-sectional plane from the guide lug of described rudder to this rudder, one to five power of the rotative component of the part of described cross-sectional plane and the distance of the part of this cross-sectional plane on X-axis is proportional.Under the dextrorotary situation of described propelling unit, the bottom of the guide lug of described rudder starboard list 5.0 ± 1.5 to described boats and ships on the S. A. of described rudder is spent, and port list 5.0 ± 1.5 degree of the top of described guide lug mutually described boats and ships on described S. A., the top of described guide lug and described bottom are about being formed on the middle point symmetry of the described rudder on the described angle of rake horizontal center line; And under the situation of described propelling unit anti-clockwise rotation, to port list 5.0 ± 1.5 degree of described boats and ships, described top starboard list 5.0 ± 1.5 to described boats and ships on described S. A. is spent on described S. A. in described bottom; And the guide lug of described rudder is formed on the connection lead, and this connection lead interconnects top, mid point and the bottom of the described guide lug of described rudder, so that the guide lug of described rudder is a straight line.
[form-1]
| The X-axis coordinate | 0.0 | 0.01 | 0.025 | 0.1 | 0.2 |
| Thickness ratio | 0.0 | 0.215463 | 0.331737 | 0.644341 | 0.865753 |
| The Y-axis coordinate | 0.35 | 0.5 | 0.7 | 0.9 | 0.95 |
| Thickness ratio | 0.997687 | 0.923819 | 0.624256 | 0.246542 | 0.139929 |
As mentioned above, among the present invention, be straight line because have the guide lug of the rudder of asymmetrical cross-section, as shown in Figure 5, compare, not only strengthened the propulsion quality of boats and ships with traditional rudder, and help manufacturing process and the maintenance and the maintenance of rudder, reduced productive costs and maintenance cost.In addition, because rudder of the present invention has asymmetrical cross-section, this asymmetrical cross-section can be adapted to can strengthen the speed characteristic of boats and ships, and described rudder can prevent because erosion or the corrosion that shunting or cavitation produce in the slip-stream that rudder enters rightly.And in the present invention, the guide lug of rudder is a straight line, can help the design and the manufacturing of rudder significantly.In addition, the present invention can provide other a plurality of effects, comprise the speed ability that better operability is provided, strengthens boats and ships, reduce cavitation with prevent rudder by cavitation damage, reduce the capacity of steering gear and not only strengthened antiaircraft voltinism energy, also satisfy moment properties.
Description of drawings
Fig. 1 is the view that shows according to the cross-sectional plane of non-symmetrical rudder of the present invention and this rudder;
Fig. 2 is the view of demonstration according to the shape of the cross-sectional plane of rudder of the present invention;
Fig. 3 shows according to based on the view that concerns between the rudder of angle of rake center shaft position and the slip-stream;
Fig. 4 is the view of multiple shape that shows the guide lug of traditional non-symmetrical rudder;
Fig. 5 is the diagram of curves that shows the speed ability pull test (towing test) relatively of rudder of the present invention and conventional rudder.
Description of reference numerals
The specific embodiment
The present invention relates to a kind of rudder 100, this rudder 100 is arranged on the stern of boats and ships.When will length being made as the X-axis of coordinate for from 0 to 1 from the guide lug 10 of rudder to the trailing edge 20 of this rudder, and the thickness ratio of rudder on S. A. 200 is made as 1, and when being expressed as the dimensionless number of form-1 as the thickness ratio of the described rudder of the function of X-axis coordinate, rudder has basic cross-sectional plane, and this basic cross-sectional plane meets the dimensionless number of form-1 in ± 0.5% error limit.The centre of gration of the cross-sectional plane of rudder from the guide lug to the rudder has non-symmetrical shape, and the cross-sectional plane of rudder has the shape of symmetry from the centre of gration to the trailing edge.Described non-symmetrical shape is determined as follows: based on the center-point of the basic cross-sectional plane of rudder, the described basic cross-sectional plane of described rudder is along the predetermined predetermined angle of direction rotation, described center-point is formed on the coordinate place of X-axis, state the thickness maximum of rudder in this coordinate place, described predetermined direction is corresponding with the direction of propelling unit rotation, described predetermined angle is by the distance decision away from propelling unit rotating shaft center, and to centre of gration, one to five power of the rotative component of the part of described cross-sectional plane and the distance of this cross-sectional plane on X-axis is proportional from the guide lug of rudder.Under the dextrorotary situation of propelling unit, the bottom 12 of the guide lug of rudder starboard list 5.0 ± 1.5 to boats and ships on the S. A. 200 of rudder is spent, to port list 5.0 ± 1.5 degree of boats and ships, the top 13 of guide lug and bottom 12 are about being formed on center-point 11 symmetries of the rudder on the angle of rake horizontal center line 300 on S. A. 200 on the top 13 of guide lug; With under propelling unit anti-clockwise rotation situation, to port list 5.0 ± 1.5 degree of boats and ships, top 13 starboard list 5.0 ± 1.5 to boats and ships on S. A. 200 is spent on S. A. 200 in bottom 12.The guide lug 10 of rudder is formed on the connection lead, and this connection lead interconnects top 13, mid point 11 and the bottom 12 of the guide lug of rudder, so that the guide lug line 14 of rudder is a straight line.
[form-1]
| X-axis | 0.0 | 0.01 | 0.025 | 0.1 | 0.2 |
| Thickness ratio | 0.0 | 0.215463 | 0.331737 | 0.644341 | 0.865753 |
| Y-axis | 0.35 | 0.5 | 0.7 | 0.9 | 0.95 |
| Thickness ratio | 0.997687 | 0.923819 | 0.624256 | 0.246542 | 0.139929 |
Below, will be described in detail with reference to the attached drawings the present invention.
Fig. 2 is the view that shows according to the non-symmetrical cross-sectional plane base model of rudder of the present invention.Based on the center-point of rudder on the X-axis coordinate, the basic cross-sectional plane of rudder is along the predetermined predetermined angle of direction rotation, described rudder is in the thickness maximum of described central spot, described predetermined direction is corresponding with the direction of propelling unit rotation, described predetermined angle by with the distance decision at interval of described propelling unit rotating shaft center, and the center-point from the guide lug of rudder to rotation, first power, quadratic power, cube or the biquadratic of the rotative component of the part of described cross-sectional plane and the distance of the part of its this cross-sectional plane on X-axis are proportional.Must after the shape of the basic cross-sectional plane that forms rudder, obtain the rotative component of part from the guide lug to the mid point.The method of the shape of the basic cross-sectional plane of formation rudder is as follows.Among the present invention, shape about the basic cross-sectional plane of rudder, when the X-axis coordinate of rudder guide lug is " 0 ", the X-axis coordinate of trailing edge is " 1 ", and when the Y-axis coordinate of guide lug is made as " 0 ", and when rudder was made as " 1 " (thickness of rudder on S. A. is the thickest) at S. A. thickness Y-axis coordinate, as the function of X-axis coordinate, the thickness ratio of rudder was as follows.When the X-axis coordinate was 0.1, the thickness ratio scope of rudder was roughly from 0.612124 to 0.676558.When the X-axis coordinate was 0.5, the thickness ratio scope of rudder was roughly from 0.877628 to 0.970009.When the X-axis coordinate was 0.7, the thickness ratio scope of rudder was roughly from 0.593043 to 0.655468.When the X-axis coordinate was 0.95, the thickness ratio scope of rudder was roughly from 0.132932 to 0.146925.
Fig. 2 is the view according to the shape of cross section of rudder of the present invention.In this embodiment, the point that is positioned at the guide lug 10 of the rudder 100 on the angle of rake horizontal shaft line of centers 300 is meant the mid point 11 of the guide lug 10 of rudder 100.The point that is positioned at the guide lug 10 of rudder 100 rudder 100 bottom is meant the bottom 12 of the guide lug 10 of rudder 100.Be positioned at the top 13 that is meant the guide lug 10 of rudder 100 with the point of the guide lug 10 of the rudder 100 of the position of guide lug 10 bottoms 12 symmetries of rudder 100, this top 13 is based on guide lug 10 bottoms 12 symmetries of mid point 11 with the rudder 100 of guide lug 10.Under these conditions, under the dextrorotary situation of propelling unit, the top 13 of the guide lug 10 of rudder 100 A at a predetermined angle tilts from the larboard 600 of S. A. 200 to boats and ships.In addition, the bottom 12 of guide lug 10 at a predetermined angle B tilt from the starboard 600 of S. A. 200 to boats and ships.The guide lug 10 of rudder 100 is formed on the connection lead, and this connection lead connects top 13, mid point 11 and bottom 12.Each predetermined angle A and B are 5.0 ± 1.5 degree.
In other words, in rudder 100 according to the present invention, the part of guide lug 10 that is positioned at the rudder 100 of angle of rake horizontal shaft line of centers 300 tops is arranged on larboard 600 places based on angle of rake vertical axis line of centers 400.The part of guide lug 10 that is positioned at the rudder 100 of angle of rake horizontal shaft line of centers 300 belows is arranged on starboard 500 places based on angle of rake vertical axis line of centers 400.
Although for ease of understanding the present invention, the top 13 of the guide lug 10 of rudder 100, bottom 12 and mid point 11 are expressed as in Fig. 2 a little, in fact, top 13, bottom 12 and mid point 11 do not form shape a little on rudder.
As mentioned above, rudder according to the present invention is set to, make the part (bottom) of guide lug of the rudder be positioned at the intermediate point below that is formed on the horizontal shaft line of centers tilt with respect to the S. A. of rudder angular range astarboard with 3.5 ° to 6.5 °, and rudder of the present invention is set to, and makes to be positioned at the intermediate point top and aport to tilt with respect to the angular range of S. A. with 3.5 ° to 6.5 ° with the part (top) of the guide lug of the rudder of following part (bottom) symmetry.
It is different and different that the bottom of the guide lug of rudder and top are the speed angles that increase maximum institute edge according to the kind of boats and ships with the reason of 3.5 ° to 6.5 ° angular range astarboard and port list.For example, model test is verified, and in the situation of some boats and ships (as bulk carrier or oil tanker), the load that is applied on the propelling unit is relatively little, the speed increase can along the maxim of angle be 3.5 °.In the situation of other boats and ships (as the high speed container ship), if the load that is applied on the propelling unit is big relatively, the speed increase can along the maxim of angle be 6.5 °.
Although for the example purpose discloses preferred implementation of the present invention, but those skilled in the art should be understood that, under the prerequisite that does not break away from the subsidiary disclosed scope and spirit of the present invention of claim, various modifications, increase and replacement all are possible.These revise, increase and replace the scope that falls into claim.
Embodiment
Below, reference table is described embodiments of the invention.
Carry out the model test of the operability of 7800 standard containers (TEU) box ship, with the shape of the cross-sectional plane of check rudder to the influence of operability.When the fltting speed (forward speed) of boats and ships under the condition of scantling draft (scantling draft) is 24.67 nautical miles/hour (knot), analyze operability.The result of the test of hydrodynamic force coefficient (hydrodynamic coefficient) numerical analysis initial steer (initial turning test), the turning test (turning test) that use obtains from model experiment results, Z-shaped test (zigzag test), vortex test (spiral test) etc.Herein, the principal particulars of rudder 10 (rudder 1) and conventional rudder (R353) following [form-2], test results is as shown in [form-3].
[form-2]
The main condition of rudder
T
2: scantling draft
[form-3]
Predicting the outcome of standard operation
*IMO MSC 137 (76), the ship operation standard
In addition, in ship model experimental tank (towing tank), carry out self-propelled (self-propulsion) test, relatively to be installed in traditional half spade (semi-spade) rudder on the 7800 standard container box ships and the speed ability of asymmetric full spade (full-spade) rudder.The result of self-propelled test is shown in Fig. 5.As shown in Figure 5, can be understood that with the situation of using traditional spade rudder and compare that when using asymmetric full spade rudder, speed ability increases by 2%, and not have the loss of rudder power on the whole cross section that boats and ships can move.
Claims (1)
1. rudder, this rudder is arranged on the stern of boats and ships,
Wherein, when will length being made as the X-axis of coordinate for from 0 to 1 from the guide lug of described rudder to the trailing edge of this rudder, and the thickness ratio of described rudder on S. A. is made as 1, and when being expressed as the dimensionless number of form-1 as the thickness ratio of the described rudder of the function of X-axis coordinate, described rudder has basic cross-sectional plane, this basic cross-sectional plane satisfies the dimensionless number of form-1 in ± 0.5% error limit
The centre of gration of the cross-sectional plane of described rudder from described guide lug to described rudder has non-symmetrical shape, and the cross-sectional plane of described rudder has the shape of symmetry from described centre of gration to described trailing edge, determine described non-symmetrical shape in the following way: the described basic cross-section center point of described rudder forms on the X-axis coordinate, thickness maximum at the described rudder of this central spot, the described basic cross-sectional plane of described rudder is along the predetermined predetermined angle of direction rotation, described predetermined direction is corresponding with angle of rake hand of rotation, described predetermined angle by with the distance decision at interval of described angle of rake rotating shaft center, and one to five power of the rotative component from the guide lug of described rudder to the part of the centre of gration of this rudder of described cross-sectional plane and the distance of part on X-axis of this cross-sectional plane is proportional
Under the dextrorotary situation of described propelling unit, the bottom of the guide lug of described rudder starboard list 5.0 ± 1.5 to described boats and ships on the S. A. of described rudder is spent, and to port list 5.0 ± 1.5 degree of described boats and ships, the top of described guide lug and described bottom are about being formed on the middle point symmetry of the described rudder on the described angle of rake horizontal center line on described S. A. on the top of described guide lug; And under the situation of described propelling unit anti-clockwise rotation, to port list 5.0 ± 1.5 degree of described boats and ships, described top starboard list 5.0 ± 1.5 to described boats and ships on described S. A. is spent on described S. A. in described bottom, and
The guide lug of described rudder is formed on the connection lead, and this connection lead interconnects top, mid point and the bottom of the described guide lug of described rudder, so that the guide lug of described rudder is a straight line,
[form-1]
。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2008-0124388 | 2008-12-09 | ||
| KR1020080124388A KR101110392B1 (en) | 2008-12-09 | 2008-12-09 | Asymmetrical ship rudder form and section |
| PCT/KR2009/007332 WO2010068024A2 (en) | 2008-12-09 | 2009-12-09 | Rudder with asymmetric cross section |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102245470A true CN102245470A (en) | 2011-11-16 |
| CN102245470B CN102245470B (en) | 2014-06-18 |
Family
ID=42243206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980149633.6A Active CN102245470B (en) | 2008-12-09 | 2009-12-09 | Rudder with asymmetric cross section |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR101110392B1 (en) |
| CN (1) | CN102245470B (en) |
| DE (1) | DE112009003700T5 (en) |
| WO (1) | WO2010068024A2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107848615A (en) * | 2015-07-25 | 2018-03-27 | 常石造船株式会社 | The rudder configuration structure of ship |
| CN113371171A (en) * | 2021-06-18 | 2021-09-10 | 武汉理工大学 | Deformable rudder blade with self-adaptive deflection front edge and deflection method |
| TWI761522B (en) * | 2017-05-30 | 2022-04-21 | 德商貝克海洋系統有限公司 | Rudder blade, rudder blade hub for a rudder blade and construction kit for a rudder blade hub |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101939861B1 (en) | 2014-05-26 | 2019-01-18 | 현대중공업 주식회사 | A rudder for ship |
| CN110816773A (en) * | 2019-11-13 | 2020-02-21 | 中国舰船研究设计中心 | Method for calculating rudder effect of marine rudder with flow control plate |
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| JPS5830896A (en) * | 1981-08-18 | 1983-02-23 | Ishikawajima Harima Heavy Ind Co Ltd | Reaction rudder without discontinuous part |
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| KR20010009112A (en) * | 1999-07-07 | 2001-02-05 | 권상문 | A rudder of ship |
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| CN101189159A (en) * | 2005-04-26 | 2008-05-28 | 现代重工业株式会社 | Thrust fin for ships |
| KR100853983B1 (en) * | 2006-12-18 | 2008-08-26 | 삼성중공업 주식회사 | Rudder with asymmetric section |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH07237594A (en) * | 1994-02-28 | 1995-09-12 | Hitachi Zosen Corp | Rudder in ship |
| JP2005246996A (en) | 2004-03-01 | 2005-09-15 | Mitsui Eng & Shipbuild Co Ltd | Ship rudder, and ship |
| DE202007015941U1 (en) * | 2007-11-13 | 2008-01-17 | Becker Marine Systems Gmbh & Co. Kg | Oars for ships |
-
2008
- 2008-12-09 KR KR1020080124388A patent/KR101110392B1/en active IP Right Grant
-
2009
- 2009-12-09 CN CN200980149633.6A patent/CN102245470B/en active Active
- 2009-12-09 DE DE112009003700T patent/DE112009003700T5/en not_active Withdrawn
- 2009-12-09 WO PCT/KR2009/007332 patent/WO2010068024A2/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5830896A (en) * | 1981-08-18 | 1983-02-23 | Ishikawajima Harima Heavy Ind Co Ltd | Reaction rudder without discontinuous part |
| JPH11180396A (en) * | 1997-12-22 | 1999-07-06 | Nakashima Propeller Co Ltd | Rudder for shipping |
| KR20010009112A (en) * | 1999-07-07 | 2001-02-05 | 권상문 | A rudder of ship |
| CN101189159A (en) * | 2005-04-26 | 2008-05-28 | 现代重工业株式会社 | Thrust fin for ships |
| KR20070066403A (en) * | 2005-12-22 | 2007-06-27 | 현대중공업 주식회사 | Rudder of ship |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107848615A (en) * | 2015-07-25 | 2018-03-27 | 常石造船株式会社 | The rudder configuration structure of ship |
| TWI761522B (en) * | 2017-05-30 | 2022-04-21 | 德商貝克海洋系統有限公司 | Rudder blade, rudder blade hub for a rudder blade and construction kit for a rudder blade hub |
| CN113371171A (en) * | 2021-06-18 | 2021-09-10 | 武汉理工大学 | Deformable rudder blade with self-adaptive deflection front edge and deflection method |
| CN113371171B (en) * | 2021-06-18 | 2022-11-15 | 武汉理工大学 | Deformable rudder blade capable of adaptively deflecting front edge and deflection method |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20100065826A (en) | 2010-06-17 |
| KR101110392B1 (en) | 2012-02-24 |
| WO2010068024A2 (en) | 2010-06-17 |
| WO2010068024A3 (en) | 2010-09-30 |
| CN102245470B (en) | 2014-06-18 |
| DE112009003700T5 (en) | 2012-12-06 |
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