CN103192947B - A kind of Three-stern and three-screw mono-hull high-speed ship - Google Patents
A kind of Three-stern and three-screw mono-hull high-speed ship Download PDFInfo
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- CN103192947B CN103192947B CN201310108872.5A CN201310108872A CN103192947B CN 103192947 B CN103192947 B CN 103192947B CN 201310108872 A CN201310108872 A CN 201310108872A CN 103192947 B CN103192947 B CN 103192947B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a kind of Three-stern and three-screw mono-hull high-speed ship, belong to technical field of ships.This ship type is combined by single ball tail ship type and double internal rotational fin tail ship type, the afterbody central fore-and-aft vertical plane region of described ship type arranges a screw and uses single ball tail ship molded line matched, and the afterbody of described ship type is symmetrical arranged two screws by two side of a ship side region and uses double internal rotational fin tail ship molded line matched.This ship type combines single ball tail and double internal rotational fin tail ship type, is used on monomer high-speed craft by three tail three oars.
Description
Technical field
The invention belongs to technical field of ships, particularly to a kind of Three-stern and three-screw mono-hull high-speed ship.
Background technology
Ship's lines is of a great variety, if research range narrowing down to screw boat type, with single-blade
Ship type and r Zweier type are the most universal, it is adaptable to the line type stern of monomer triple screw vessel is rare.At present will
Three oars or the set of many oars be applied on monohull and obtain the example majority of engineer applied be use special
Propulsion mode, as podded propeller, full circle swinging advance loading etc., but this type of extraordinary propeller is deposited
In expensive problem；Or the bracing strut support helix that simple arrangement is common on beam direction
Oar.Hereinafter get rid of special propulsion mode ship type not talk, only long axis system is driven to the propulsion mode of screw
Introduce several ship type technology similar with this patent:
(1) plain shaft support multiple-screw vessel type
Long axis system highlights hull and is connected with screw, and uses the mode of bracing strut to fix tail pipe, master
Axle and screw so that shipform is simple, easily manufactured, wetted surface area is little, naked hull resistance relatively
Low, but also exist wake not uniformly, the resistance of appendage such as hull efficiency and propulsive efficiency is low, bracing strut
Big shortcoming；
(2) single ball tail ship type
Single ball tail ship type is commonly used on single oar and single rudder ship, and such ship type hull afterbody body lines is U
Type or the most U-shaped, the body lines at screw shaft levels off to circle, and approximation and propeller shaft
Heart line is concentric, so the hull approximation at screw shaft in terms of three-dimensional viewpoin and spherocylinder, therefore
And obtain entitled ball tail.This ship type has increase wake fraction, improves hull efficiency, makes wake distribution all
Even hydrodynamic force technical advantage, thus to reducing the cavity of screw and exciting force advantageously；
(3) double internal rotational fin tail ship types:
Apply whirlpool groove tail technology, make to flow under the inducing action of whirlpool groove in screw front formation one
The preliminary election flowing that stock is stronger, its direction of rotation is outside, and blade is arranged to the direction contrary with preswirl
Rotate, i.e. inward turning propeller, so eliminate wake flow rotary motion, reduce energy loss, this hydrodynamic force
Learn mechanism and reaction fin in front of propeller or similar to the mechanism turning oar, improve Ship Propeling efficiency, mainly increase
Add axial induced efficiency, be commonly called as anti-oar effect.Double internal rotational fin tail ship types can accommodate large radius-depth ratio (spiral shell
Rotation oar diameter/boats and ships tail drinking water) screw, improve the spacious water efficiency of screw, be equal to tunnel
The effect of road tail.Double internal rotational fin tail ship types are also similar to double ball tail ship type, make stern wake mark increase
And wake is evenly distributed, improve hull efficiency, reduce screw vibration.
Being 1000 tons to about 3000 tons at displacement, Fu formula number Fr reaches the high-speed craft of more than 0.6
Upper application screw propulsion mode, the high-speed craft drag overall of this displacement rank is difficult to relatively on the order of magnitude
Big improvement, therefore Ship Propeling required drive often reaches about 30,000 kilowatts, it is contemplated that spot ship
Main frame technology barrier in terms of volume, weight and power output, thus on such boats and ships use single-blade,
The possibility of double oars is little.If using plain shaft support multiple-screw vessel type, there is again propulsive efficiency the highest
Problem.
Summary of the invention
It is an object of the invention to provide a kind of combination list ball tail and three tail three oars of double internal rotational fin tail ship type
Monomer high-speed craft type.
The technical solution adopted in the present invention is:
A kind of Three-stern and three-screw mono-hull high-speed ship, this ship type is by single ball tail ship type and double internal rotational fin tail ship type
Combining, the afterbody central fore-and-aft vertical plane region of described ship type is single ball tail ship type, arranges one in this region
Screw, described screw coordinates with single ball tail ship type, and the afterbody of described ship type by two side of a ship side region is
Double internal rotational fin tail ship types, this region arranges two screws, said two screw and double internal rotational fin tail
Ship type coordinates.
Further, described three screws realize being dislocatedly distributed on boats and ships width, and avoid
The overlap of the card area of described screw.
Further, described three screws reality on boat length direction is dislocatedly distributed, described list
The screw of ball tail is in two screw rear portions of double internal rotational fin tail.
Further, this ship type is applicable to displacement at about 1000 tons to 3000 tons, Fu's formula number
Fr reaches the monomer high-speed craft of more than 0.6.
The invention have the advantages that
The present invention combines single ball tail and the ship type advantage of double internal rotational fin tail, uses spatial intersecting to arrange simultaneously
Scheme, maximum possible is got rid of interfering of two kinds of ship type screw currents, is retained two kinds of ship types excellent
Propulsive performance, improve hull propulsive efficiency, double internal rotational fin tail utilize hull shape produce preswirl spray
The effect of penetrating, single ball tail utilize propeller wake field uniformity, reduce radial pulsation pressure, improve hull
Propulsive efficiency, it is to avoid ship hull vibration, reduces propeller noise, thus improves ship resistance and performance and comfortable
Property；The present invention utilize double internal rotational fin tail ship type technology efficiently solve screw little with hull gap and
The ship hull vibration problem caused, it is possible to use the best fit technology of ship machine slurry, strengthens to greatest extent
Airscrew diameter, reduces revolution speed of propeller, strengthens airscrew thrust significantly, can reach
More than 0.7, improve open water propeller efficiency；Patent of the present invention efficiently solves part helix blade
The tip water outlet navigation time be emptied problem, when boats and ships in footpath ratio deeply under the limit Loading conditions of more than 1.3
Propeller for vessels still can run well, and this patent uses large radius-depth to compare designing technique so that boats and ships
Can normally work under light condition, it is possible to realize the Life cycle design object without ballast；This
Invention uses single ball tail to organically combine design philosophy with double internal rotational fin tail ship types, although due to its wet structure
Long-pending increase increased compared with making the ship type of Ship Resistance propulsion mode novel with similar employing, but passes through
Improve Ship Propeling efficiency so that the ship type of the novel propulsion mode of the more similar employing of ship resistance and performance is not
Inferior, but owing to holding uses the most ancient, ripe screw propulsion mode so that ship of the present invention
Type cost is lower, reliability is higher.
Accompanying drawing explanation
The invention will be further described below in conjunction with the accompanying drawings.
The cross section of a kind of knuckle bilge moldeed depth V high-speed craft stern that Fig. 1 provides for the embodiment of the present invention 1；
The drawing in side sectional elevation of a kind of slack bulge moldeed depth V high-speed craft stern that Fig. 2 provides for the embodiment of the present invention 2；
Fig. 3 is that in the embodiment of the present invention 1 and 2, knuckle bilge moldeed depth V high-speed craft stern and slack bulge moldeed depth V are high
The profilograph of speed ship stern.
Detailed description of the invention
Embodiment 1
The ship type of the present invention is conceived to displacement at about 1000 tons to 3000 tons, and Fu formula number Fr reaches 0.6
Above high-speed craft, preferably draws the displacement of volume length system of such boats and ships by principal dimensions with drag evaluation
Number (Δ/(0.01L)3) be in
Between 500 to 2000, beam-draft ratio (B/T) scope be that between 2 to 4, required drive is up to 30,000
About kilowatt, wherein Fu's formula numberV is ship speed, and unit is metre per second (m/s) (m/s),
L is boats and ships water line length, and unit is rice (m), and g is acceleration of gravity, equal to 9.8m/s2, displacement hull
Long-pending length factor Δ/(0.01L)3Middle Δ is displacement of volume, and unit is cubic meter (m3).In the present embodiment
Knuckle bilge moldeed depth V high-speed craft belongs to this kind of ship type.
The concrete technical scheme of this ship type is:
(1) propeller aperture interlaced arrangement scheme
With reference to Fig. 1, the impeller 1 of three screws realizes dislocation on boats and ships width and arranges and avoid
The overlap of propeller disk area, thus reduce interfering of the wake flow of screw, it is to avoid producing need not
The water vortex resistance wanted, keeps the propulsive efficiency that each screw is good.With reference to Fig. 3, three screws
On boat length direction, reality dislocation is arranged, and be positioned at single ball tail 2 screw of boats and ships central fore-and-aft vertical plane
Oar dish 3 is in the rear portion of the oar dish 4 of double internal rotational fin tail screw, thus keeps double internal rotational fin tail screw
Good preswirl physical action and its higher propulsive efficiency, simultaneously through double internal rotational fin tail screw injections
Screw current after effect becomes the influent stream of rear portion list ball tail 2 screw, thus strengthen this oar enter speed,
Improve advance coefficient, indirectly improve the propulsive efficiency of rear portion list ball tail 2 screw.
Propeller aperture is realized by the screw interlaced arrangement on above boats and ships width and length direction
Three-dimensional staggered is arranged, is prevented effectively from interfering of wake flow from hydrodynamics angle, keeps each oar excellence
Propulsive efficiency.
(2) double internal rotational fin tail and single ball tail 2 Combination Design scheme
In conjunction with the space three-dimensional interlaced arrangement of (1) part, take into account the preswirl of double internal rotational fin tail ship type simultaneously
Mechanism and single ball tail 2 ship type enter the bigger mechanism of speed, respectively by improving hull efficiency, relative rotative efficiency
Make three screws all can reach optimal propulsive efficiency with the mode of advance coefficient, so by double internal rotational fin
Tail and single ball tail 2 organic assembling, be greatly improved the propulsive efficiency that boats and ships are total so that overall propulsive efficiency reaches
About 0.7.
(3) large radius-depth is than Design of Propeller scheme
In the design process of common ship type, for ensureing boats and ships screw in underloading or part cargo shipment are navigated by water
Occur without blade under normal operating conditions and leave water and the phenomenon that is exposed in air, and in fully loaded voyage
Being unlikely to bigger propeller exciting force occur, the footpath of ship form design ratio deeply (eat with design by airscrew diameter
The ratio of water) it is usually taken to be about 0.7, the most all it is not more than 1.
Then, common ship type need to be at boats and ships afterbody ballast tank in the operational configuration of ballast or part cargo shipment
The a considerable amount of ballast water of interior loading, to meet method of ship floating condition requirement.Numerous cases teach that, boats and ships
Being excessively used of ballast water will bring unnecessary boats and ships energy loss and the water pollution of ballast.
Double internal rotational fin tail ship types that ship type of the present invention introduces possess solution boats and ships Life cycle completely without ballast
The technical feasibility of shipwreck topic.On the one hand, by the observation of this ship type model test be may determine that invention
The footpath of ship type ratio deeply can get about 1.3, though boats and ships under the operating mode of underloading navigation and ballast-free
Above static lower screw, blade surfaces, and due to this distinctive tunnel of ship type after ship's navigation is got up
The inducing action that channel effect and propeller rotational are formed make water body naturally be full of the whole card of screw and
Do not have blade emptying phenomenon, thus effectively protect screw.On the other hand, divide from hydrodynamic force mechanism
Analysis, due to the distinctive similar half conduit effect of invention ship type, exciting force above effective helix angle oar, damping is dropped
Effect of making an uproar is obvious.So, invention ship type can realize boats and ships Life cycle ballast-free completely.
Test shows that ship type of the present invention is deeply normal, not than reaching propeller works in the trystate of 1.3 in footpath
Emptying phenomenon occurs, boats and ships normal/cruise is not had any impact.
(4) machine, oar coordinated scheme
According to oar front axle to, circumference wake be reasonably distributed design screw, wherein in the present invention in a pair pair
Rotation fin tail screw is owing to being to be arranged symmetrically with so Design of Propeller parameter is identical, and single ball tail 2 screw
Owing to its fluidized-bed furnace is different so having different oar design parameter from double internal rotational fin tail screws.By
Feature in major diameter screw makes revolution speed of propeller decline, and needs while propulsive efficiency is effectively improved
Coordinate the relation between revolution speed of propeller and engine speed.Real by selecting preferably gearbox speed reduction ratio
Existing transmission between main frame and screw, reaches machine, the target of oar better fit, meet energy-saving and emission-reduction,
Expand main engine power and the design requirement of airscrew diameter range of application.
Embodiment 2
Ship type of the present invention as different from Example 1, is used in slack bulge moldeed depth V at a high speed by the present embodiment
On ship.The body plan of its afterbody is with reference to Fig. 2, and the elevations of afterbody is with reference to Fig. 3.
The present invention combines single ball tail 2 and the ship type advantage of double internal rotational fin tail, uses spatial intersecting cloth simultaneously
Put interfering of two kinds of ship type screw currents of scheme maximum possible, retain excellent the pushing away of two kinds of ship types
Entering performance, improve hull propulsive efficiency, double internal rotational fin tail utilize hull shape to produce preswirl injection work
Utilize propeller wake field uniformity with, single ball tail 2, reduce radial pulsation pressure, improve hull and push away
Enter efficiency, it is to avoid ship hull vibration, reduce propeller noise, thus improve ship resistance and performance and comfortableness；
It is little with hull gap and draw that the present invention utilizes double internal rotational fin tail ship type technology to efficiently solve screw
The ship hull vibration problem risen, it is possible to use the best fit technology of ship machine slurry, strengthens spiral shell to greatest extent
Rotation oar diameter, reduces revolution speed of propeller, strengthens airscrew thrust significantly, can reach 0.7
Above, open water propeller efficiency is improved；Patent of the present invention efficiently solves the part helix blade tip and goes out
Water navigation time be emptied problem, when boats and ships boats and ships under footpath is deeply than for the limit Loading conditions of more than 1.3
Screw still can run well, and this patent uses large radius-depth to compare designing technique so that boats and ships are gently
Can normally work under load state, it is possible to realize the Life cycle design object without ballast；The present invention
Single ball tail 2 is used to organically combine design philosophy with two-fold angle internal rotational fin tail ship type, although due to its wet table
Area increased compared with increasing the ship type making Ship Resistance propulsion mode novel with similar employing, but logical
Cross raising Ship Propeling efficiency so that the ship type milli of the novel propulsion mode of the more similar employing of ship resistance and performance
In no way inferior, but owing to holding uses the most ancient, ripe screw propulsion mode so that the present invention
Ship type cost is lower, reliability is higher.
Above example is only in order to illustrate technical scheme and unrestricted, although with reference to the most real
Execute example the present invention has been described in detail, it will be understood by those within the art that, can be right
Technical scheme is modified or equivalent, without deviating from the essence of technical solution of the present invention
God and scope, it all should be contained in the middle of scope of the presently claimed invention.
Claims (3)
1. a Three-stern and three-screw mono-hull high-speed ship, it is characterised in that this ship type by single ball tail ship type and
Double internal rotational fin tail ship types combine, and the afterbody central fore-and-aft vertical plane region of described ship type is single ball tail ship type, should
Arranging a screw in region, described screw coordinates with single ball tail ship type, the afterbody of described ship type
Being double internal rotational fin tail ship types by two side of a ship side region, this region arranges two screws, said two spiral
Oar coordinates with double internal rotational fin tail ship types；
Described three screws reality on boat length direction is dislocatedly distributed, the screw of described single ball tail
It is in two screw rear portions of double internal rotational fin tail.
Three-stern and three-screw mono-hull high-speed ship the most according to claim 1, it is characterised in that described
Three screws realize being dislocatedly distributed on boats and ships width, and avoid the card face of described screw
Long-pending overlap.
3. according to the Three-stern and three-screw mono-hull high-speed ship described in any one of claim 1 to 2, its feature
Being, it is 1000 tons to 3000 tons that this ship type is applicable to displacement, and Fu formula number Fr reaches more than 0.6
Monomer high-speed craft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310108872.5A CN103192947B (en) | 2013-03-29 | 2013-03-29 | A kind of Three-stern and three-screw mono-hull high-speed ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310108872.5A CN103192947B (en) | 2013-03-29 | 2013-03-29 | A kind of Three-stern and three-screw mono-hull high-speed ship |
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| Publication Number | Publication Date |
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| CN103192947A CN103192947A (en) | 2013-07-10 |
| CN103192947B true CN103192947B (en) | 2016-08-24 |
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| CN201310108872.5A Active CN103192947B (en) | 2013-03-29 | 2013-03-29 | A kind of Three-stern and three-screw mono-hull high-speed ship |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104670448A (en) * | 2015-01-07 | 2015-06-03 | 王东武 | Method for reducing cavitation noise of propellers |
| CN112874740B (en) * | 2021-04-21 | 2022-08-30 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Ship tail arrangement structure of three full-rotation main thrusters |
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| CN200942862Y (en) * | 2006-08-23 | 2007-09-05 | 国营武昌造船厂 | Large-scale Ro/Ro ship shape |
| CN201300963Y (en) * | 2008-10-31 | 2009-09-02 | 武昌船舶重工有限责任公司 | Bulbous bow twin-tail fin stern ship |
| CN101730644A (en) * | 2007-07-06 | 2010-06-09 | 阿克北极科技公司 | Method for improving the ice-breaking properties of a water craft and a water craft constructed according to the method |
| CN102530188A (en) * | 2011-12-06 | 2012-07-04 | 武汉武船海洋工程船舶设计有限公司 | Yacht for inland waterway |
| EP2497710A1 (en) * | 2009-11-05 | 2012-09-12 | Mitsubishi Heavy Industries, Ltd. | Stern structure for ship |
| CN102745304A (en) * | 2012-07-17 | 2012-10-24 | 武汉武船海洋工程船舶设计有限公司 | Ship with knuckle line and internal rotational fin tail |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5777282A (en) * | 1980-11-01 | 1982-05-14 | Sanoyasu:Kk | Ship with catamaran-type stern |
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2013
- 2013-03-29 CN CN201310108872.5A patent/CN103192947B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200942862Y (en) * | 2006-08-23 | 2007-09-05 | 国营武昌造船厂 | Large-scale Ro/Ro ship shape |
| CN101730644A (en) * | 2007-07-06 | 2010-06-09 | 阿克北极科技公司 | Method for improving the ice-breaking properties of a water craft and a water craft constructed according to the method |
| CN201300963Y (en) * | 2008-10-31 | 2009-09-02 | 武昌船舶重工有限责任公司 | Bulbous bow twin-tail fin stern ship |
| EP2497710A1 (en) * | 2009-11-05 | 2012-09-12 | Mitsubishi Heavy Industries, Ltd. | Stern structure for ship |
| CN102530188A (en) * | 2011-12-06 | 2012-07-04 | 武汉武船海洋工程船舶设计有限公司 | Yacht for inland waterway |
| CN102745304A (en) * | 2012-07-17 | 2012-10-24 | 武汉武船海洋工程船舶设计有限公司 | Ship with knuckle line and internal rotational fin tail |
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Address after: 430074 No. 25, No. three, 3S geo information industry base, Hubei science and Technology Park, East Lake Development Zone, Wuhan, China Applicant after: China shipbuilding (Wuhan) Marine & Offshore Engineering Equipment Design Co., Ltd. Address before: 430074 No. 25, No. three, 3S geo information industry base, Hubei science and Technology Park, East Lake Development Zone, Wuhan, China Applicant before: Wuhan Wuchuan Ocean Engineering Ship Design Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: WUHAN WUCHUAN OCEAN ENGINEERING SHIP DESIGN CO., LTD. TO: CSIC UHAN HIP AND OCEAN ENGINEERING EQUIPMENT DESIGN CO., LTD. |
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Effective date of registration: 20211110 Address after: 430060 No. 2, ZhangZhidong Road, Wuchang, Wuhan, Hubei Patentee after: Wuchang Shipbuilding Industry Group Co., Ltd Address before: 430074 block 25, zone 3, 3S geo information industry base, Wuhan University Science Park, East Lake Development Zone, Wuhan City, Hubei Province Patentee before: CSIC (Wuhan) shipbuilding and offshore engineering equipment design Co., Ltd |