CN102407919A - High-speed small water-plane catamaran body - Google Patents
High-speed small water-plane catamaran body Download PDFInfo
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- CN102407919A CN102407919A CN2011103028081A CN201110302808A CN102407919A CN 102407919 A CN102407919 A CN 102407919A CN 2011103028081 A CN2011103028081 A CN 2011103028081A CN 201110302808 A CN201110302808 A CN 201110302808A CN 102407919 A CN102407919 A CN 102407919A
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
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Abstract
The invention discloses a high-speed small water-plane catamaran body which comprises an overwater platform, supporting struts and an underwater floater, wherein the supporting struts are mounted on two sides under the overwater platform; the underwater floater is fixed under the supporting struts on the two sides; and air injection devices are respectively arranged in the middle part and tail part of the underwater floater. The viscosity resistance of the small water-plane catamaran body provided by the invention is reduced under the effects of air injection and resistance reduction; an SWATH head sea longitudinal motion caused by the air injection is improved; in the small water-plane catamaran body, a stern plate is additionally arranged for reducing the resistance, thereby reducing the resistance at a high-speed section of the small water-plane catamaran body; the frictional resistance of the underwater floater is reduced by a bow fin and a stern fin; the splashing resistance of the supporting struts can be reduced by an anti-splashing bar; and the high-speed small water-plane catamaran body promotes an SWATH shipping speed while reducing the resistance thereof in still water.
Description
Technical field
The present invention relates to a kind of surface ship, refer to a kind of high speed small waterplane area twin hull ship (SWATH) hull particularly.
Background technology
Small waterplane area twin hull ship (SWATH) (Small Water plane Area Twin Hull; SWATH) be a kind of discharge type high-performance ship; By underwater buoyant body, above water platform with pass the ship that the pillar of the water surface constitutes, its displaced volume major part is dived in water, and the waterplane of pillar is very little.Compare with conventional monomer Vessel of Displacement; SWATH has long proper motion cycle, less motion amplitude and acceleration/accel; Speed loss in waves is few, slamming and last wave and occupant's seasick probability is low; Couple structure has improved the viability on naval vessel, good insubmersibility and spacious floor space, in high sea, has the unapproachable good rough water quality of conventional ship.
With compare with the conventional boats and ships of tonnage, SWATH is when having good rough water quality because the increase on wet surface, resistance increases when causing in the hydrostatic the high speed of a ship or plane; And because the limited space of underwater buoyant body, little tonnage is difficult to directly arrange high-performance main frame, causes the SWATH speed of a ship or plane lower.Therefore, when improving the SWATH speed of a ship or plane, the hot issue that to reduce its resistance in hydrostatic be current international shipbuilding circles.
Research shows; Cause the bigger major cause of SWATH hydrostatic high speed running resistance to have two: on the one hand be since during high speed pillar produced serious splash; Cause resistance significantly to increase; Through the analysis to limited test figures, the high speed spray resistance can reach more than 20% in the ratio of total drag; Be because underwater buoyant body is soaked the big caused bigger friction drag of area on the other hand.Therefore, reduce the resistance of motion of SWATH, comparatively the actv. means are to reduce the spray resistance of SWATH pillar and the friction drag of underwater buoyant body.
Summary of the invention
The object of the invention will overcome the existing in prior technology deficiency exactly, and a kind of high speed small waterplane area twin hull ship (SWATH) hull is provided.
For realizing above-mentioned purpose; Institute of the present invention designed high speed small waterplane area twin hull ship (SWATH) hull; Comprise above water platform, be installed in the pillar of both sides, above water platform below and be fixed on the underwater buoyant body under two lateral braces, be respectively arranged with air jet system in the middle part of said underwater buoyant body and the afterbody.
Further; Said air jet system comprises side seal board, be arranged on the upper cover plate at side seal board top and be arranged on the jet base plate of side seal board bottom; The filter plate parallel with jet base plate also is set in the middle part of said air jet system; Said upper cover plate is provided with at least one and the admission piece that air jet system inside communicates, and said filter plate is provided with a plurality of filter openings, and jet base plate is provided with a plurality of spray orifices.
Preferably, be provided with a few circle circular arcs with the admission piece corresponding section on the said filter plate and arrange filter opening, other position spaced set has the vertical filter opening of several rows on the said filter plate.Said jet base plate equidistantly is staggeredly equipped with at least three row's spray orifices up and down, and said same row's spray orifice spaced set.The total sectional area of the admission piece of the air jet system at said underwater buoyant body middle part is bigger than the total sectional area of the admission piece of the air jet system of underwater buoyant body afterbody.
In the such scheme, on the trailing edge of said pillar stern trimming flag is installed, and said stern trimming flag is positioned at the top of underwater buoyant body.When high speed, install stern trimming flag additional resistance performance is improved, help reducing resistance.
To design suitable stern trimming flag parameter when installing stern trimming flag additional as far as possible, make to make low speed resistance increment minimum when high speed resistance reduces.Preferably, the cross-sectional plane of said stern trimming flag is that fillet is led at circular arc and edge, and the length of said stern trimming flag is 700～900mm, setting angle α=0～5 of stern trimming flag °.Best, the length of said stern trimming flag is 700mm, setting angle α=0 of stern trimming flag °.
In the such scheme, the outer inboard of said underwater buoyant body is provided with bow fin and stern fin, and the side on said pillar top is provided with spray deflector.Like this, can reduce the spray resistance of pillar of friction drag and the high speed small waterplane area twin hull ship (SWATH) hull of underwater buoyant body.
Carry out jet drag reduction of high speed SWATH and seakeeping test, the result shows: the gas-bearing formation drag reduction technology has application promise in clinical practice at small waterplane area twin hull ship (SWATH), and is especially better at the high regime drag-reduction effect; When not jet, the exercise performance of flat SWATH exercise performance with parent form in shortwave is suitable, and the motion response amplitude is slowed down to some extent in long wave; The jet back of flat SWATH exercise performance further improves.
Beneficial effect of the present invention is: through jet drag reduction the viscosity drag of small waterplane area twin hull ship (SWATH) hull is reduced, when the speed of a ship or plane was higher, airshed increased; Drag reducing efficiency increases; Hull bottom twin-stage associating is jet, and the total drag drag reducing efficiency can reach 2.33%, and the jet SWATH of the causing longitudinal movement of heading sea makes moderate progress.The present invention makes small waterplane area twin hull ship (SWATH) reduce at the high regime resistance through installing the stern trimming flag drag reduction additional; Bow fin and stern fin can reduce the friction drag of underwater buoyant body; Spray deflector can reduce the spray resistance of pillar.The present invention can reduce its resistance in hydrostatic when improving the SWATH speed of a ship or plane.
Description of drawings
Fig. 1 is the structural representation of high speed small waterplane area twin hull ship (SWATH) hull.
Fig. 2 is the cross-sectional view of underwater buoyant body among Fig. 1.
Fig. 3 is the structural representation that stern trimming flag is installed among Fig. 1.
Fig. 4 is the side-looking structural representation of air jet system among Fig. 2.
Fig. 5 is the plan structure scheme drawing of the air jet system of underwater buoyant body afterbody.
Fig. 6 is the structural representation of jet base plate among Fig. 4.
Fig. 7 is the structural representation of filter plate of the air jet system of underwater buoyant body afterbody.
Fig. 8 is the structural representation of the upper cover plate of the air jet system in the middle part of the underwater buoyant body.
Fig. 9 is the structural representation of the filter plate of the air jet system in the middle part of the underwater buoyant body.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is made further detailed description.
Fig. 1,2, the high speed small waterplane area twin hull ship (SWATH) hull shown in 3; Comprise above water platform 1, be installed in the pillar 2 of both sides, above water platform 1 below and be fixed on the underwater buoyant body 3 under two lateral braces 2, be respectively arranged with air jet system 5 in the middle part of underwater buoyant body 3 and the afterbody.Stern trimming flag 4 is installed on the trailing edge of pillar 2, and stern trimming flag 4 is positioned at the top of underwater buoyant body 3.The length of stern trimming flag 4 is 700mm, and the setting height(from bottom) H=280mm of stern trimming flag 4, the setting angle of stern trimming flag 4 are α=3 °.The cross-sectional plane of stern trimming flag 4 is that fillet is led at circular arc and edge.Underwater buoyant body 3 outer inboards are provided with bow fin 6 and stern fin 7.The side on pillar 2 tops is provided with spray deflector 8.
As shown in Figure 6, jet base plate 5.2 equidistantly is staggeredly equipped with three row's spray orifice 5.2.1 up and down.Middle row's spray orifice 5.2.1 is arranged on the horizontal center line of jet base plate 5.2, and the upper and lower of one row's spray orifice 5.2.1 respectively is provided with the equally spaced spray orifice 5.2.1 of a row in the centre.The spacing of neighbouring two row's spray orifice 5.2.1 is 8mm, and the spacing of adjacent two the spray orifice 5.2.1 of same row is 10mm.A middle ranking is 6.7mm in the spray orifice 5.2.1.2 in vertical center line left side and the distance of vertical center line.Last ranking is 3.3mm in the spray orifice 5.2.1.1 in vertical center line left side and the distance of vertical center line.Following ranking is 10mm in the spray orifice 5.2.1.3 in vertical center line left side and the distance of vertical center line.
The air jet system 5 of underwater buoyant body 3 afterbodys shown in Fig. 4～7, upper cover plate 5.1 are provided with an admission piece 5.4 that communicates with air jet system 5 inside.The internal diameter of admission piece 5.4 is 10mm, the filter opening 5.5.1 diameter 2mm on the filter plate 5.5.Be provided with a few circle circular arcs with admission piece 5.4 corresponding sections on the filter plate 5.5 and arrange filter opening 5.5.1.1: with the center of circle of admission piece 5.4 right filter plate 5.5 be the center of circle; Spaced set has several filter opening 5.5.1.1 at radius 5mm place; Spaced set has several filter opening 5.5.1.1 at radius 11.6mm place, and spaced set has several filter opening 5.5.1.1 at radius 19.8mm place.Other position spaced set has the vertical filter opening 5.5.1.2 of several rows on the filter plate 5.5: 7.5mm is vertically installed with row's filter opening 5.5.1.2 at a distance of the interval, both sides of 30mm with filter plate 5.5 vertical center lines; 3.8mm is vertically installed with row's filter opening 5.5.1.2 at a distance of the interval, both sides of 40mm with vertical center line; 7.5mm is vertically installed with row's filter opening 5.5.1.2 at a distance of the interval, both sides of 50mm with vertical center line, and 3.8mm is vertically installed with row's filter opening 5.5.1.2 at a distance of the interval, both sides of 60mm with vertical center line on the edge.
The air jet system 5 at Fig. 4,8,3 middle parts of the underwater buoyant body shown in 9, upper cover plate 5.1 are provided with two admission pieces 5.4 that communicate with air jet system 5 inside.The internal diameter of each admission piece 5.4 is 10mm, and the filter opening 5.5.1 diameter of filter plate 5.5 is 2mm.Be provided with a few circle circular arcs with admission piece 5.4 corresponding sections on the filter plate 5.5 and arrange filter opening 5.5.1.1: with the center of circle of admission piece 5.4 right filter plate 5.5 be the center of circle; Spaced set has several filter opening 5.5.1.1 at radius 5mm place; Spaced set has several filter opening 5.5.1.1 at radius 11.6mm place, and spaced set has several filter opening 5.5.1.1 at radius 19.8mm place.Other position spaced set has the vertical filter opening 5.5.1.2 of several rows on the filter plate 5.5: the spacing with the vertical vertical filter opening 5.5.1.2 that arranges is 7.5mm or 3.7mm.
When jet, the jet amount at underwater buoyant body 3 middle parts is more large-minded than the spray of underwater buoyant body 3 afterbodys, can keep the small face catamaran to lift to bow, has reduced the bottom water resistance, improves rapidity.When small waterplane area twin hull ship (SWATH) navigates by water in high regime, install stern trimming flag additional the resistance of hull is reduced; Bow fin and stern fin can reduce the friction drag of underwater buoyant body; Spray deflector can reduce the spray resistance of pillar.Therefore, the present invention can reduce its resistance in hydrostatic when improving the SWATH speed of a ship or plane.
Claims (10)
1. high speed small waterplane area twin hull ship (SWATH) hull; Comprise above water platform (1), be installed in the pillar (2) of both sides, above water platform (1) below and be fixed on the underwater buoyant body (3) under two lateral braces (2), it is characterized in that: be respectively arranged with air jet system (5) in the middle part of said underwater buoyant body (3) and the afterbody.
2. high speed small waterplane area twin hull ship (SWATH) hull according to claim 1; It is characterized in that: said air jet system (5) comprises side seal board (5.3), be arranged on the upper cover plate (5.1) at side seal board (5.3) top and be arranged on the jet base plate (5.2) of side seal board (5.3) bottom; The filter plate (5.5) parallel with jet base plate (5.2) also is set in the middle part of said air jet system (5); Said upper cover plate (5.1) is provided with at least one admission piece (5.4) that communicates with air jet system (5) inside; Said filter plate (5.5) is provided with a plurality of filter openings (5.5.1), and jet base plate (5.2) is provided with a plurality of spray orifices (5.2.1).
3. high speed small waterplane area twin hull ship (SWATH) hull according to claim 2; It is characterized in that: said filter plate (5.5) is gone up and admission piece (5.4) corresponding section is provided with a few circle circular arcs arrangement filter openings (5.5.1.1), and said filter plate (5.5) is gone up other position spaced set has the vertical filter opening of several rows (5.5.1.2).
4. high speed small waterplane area twin hull ship (SWATH) hull according to claim 2 is characterized in that: said jet base plate (5.2) equidistantly is staggeredly equipped with at least three row's spray orifices (5.2.1) up and down, and said same row's spray orifice (5.2.1) spaced set.
5. according to the described high speed small waterplane area twin hull ship (SWATH) of one of claim 1～4 hull, it is characterized in that: the total sectional area of the admission piece (5.4) of the air jet system (5) at underwater buoyant body (3) middle part is bigger than the total sectional area of the admission piece (5.4) of the air jet system (5) of underwater buoyant body (3) afterbody.
6. according to the described high speed small waterplane area twin hull ship (SWATH) of one of claim 1～4 hull, it is characterized in that: stern trimming flag (4) is installed on the trailing edge of said pillar (2), and said stern trimming flag (4) is positioned at the top of underwater buoyant body (3).
7. high speed small waterplane area twin hull ship (SWATH) hull according to claim 6 is characterized in that: the length of said stern trimming flag (4) is 700～900mm, setting angle α=0～5 of stern trimming flag (4) °.
8. the high speed small waterplane area twin hull ship (SWATH) hull that has stern trimming flag according to claim 7, it is characterized in that: the length of said stern trimming flag (4) is 700mm, setting angle α=0 of stern trimming flag (4) °.
9. the high speed small waterplane area twin hull ship (SWATH) hull that has stern trimming flag according to claim 6 is characterized in that: the cross-sectional plane of said stern trimming flag (4) is that fillet is led at circular arc and edge.
10. according to the described high speed small waterplane area twin hull ship (SWATH) of one of claim 1～4 hull, it is characterized in that: the outer inboard of said underwater buoyant body (3) is provided with bow fin (6) and stern fin (7), and the side on said pillar (2) top is provided with spray deflector (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110302808.1A CN102407919B (en) | 2011-09-29 | 2011-09-29 | High-speed small water-plane catamaran body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110302808.1A CN102407919B (en) | 2011-09-29 | 2011-09-29 | High-speed small water-plane catamaran body |
Publications (2)
| Publication Number | Publication Date |
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| CN102407919A true CN102407919A (en) | 2012-04-11 |
| CN102407919B CN102407919B (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110302808.1A Expired - Fee Related CN102407919B (en) | 2011-09-29 | 2011-09-29 | High-speed small water-plane catamaran body |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106956746A (en) * | 2016-01-11 | 2017-07-18 | 刘明江 | High-speed boat |
| CN107539420A (en) * | 2017-08-29 | 2018-01-05 | 中国船舶科学研究中心上海分部 | A kind of small waterplane area twin hull ship with stabilising fin |
| CN109747769A (en) * | 2019-03-08 | 2019-05-14 | 大连海事大学 | Double-layer splash-proof strip structure arranged on high-speed catamaran |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4798153A (en) * | 1984-08-23 | 1989-01-17 | Lockheed Missiles & Space Company, Inc. | Stabilized hull swath vehicle |
| US5301624A (en) * | 1993-02-24 | 1994-04-12 | Swath Ocean Systems, Inc. | Stern planes for swath vessel |
| CN1944183A (en) * | 2005-10-03 | 2007-04-11 | 赵明 | Air cushion variable wing water jet propelling small water line boat |
| CN101708760A (en) * | 2009-12-07 | 2010-05-19 | 上海电器科学研究所（集团）有限公司 | Small-waterplane two-body type high-performance water area unmanned inspecting device |
| CN201494589U (en) * | 2009-04-15 | 2010-06-02 | 曹漪 | Air curtain drag reduction catamaran |
| CN102112366A (en) * | 2008-11-21 | 2011-06-29 | 三菱重工业株式会社 | Device for reducing frictional resistance of ship body |
-
2011
- 2011-09-29 CN CN201110302808.1A patent/CN102407919B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4798153A (en) * | 1984-08-23 | 1989-01-17 | Lockheed Missiles & Space Company, Inc. | Stabilized hull swath vehicle |
| US5301624A (en) * | 1993-02-24 | 1994-04-12 | Swath Ocean Systems, Inc. | Stern planes for swath vessel |
| CN1944183A (en) * | 2005-10-03 | 2007-04-11 | 赵明 | Air cushion variable wing water jet propelling small water line boat |
| CN102112366A (en) * | 2008-11-21 | 2011-06-29 | 三菱重工业株式会社 | Device for reducing frictional resistance of ship body |
| CN201494589U (en) * | 2009-04-15 | 2010-06-02 | 曹漪 | Air curtain drag reduction catamaran |
| CN101708760A (en) * | 2009-12-07 | 2010-05-19 | 上海电器科学研究所（集团）有限公司 | Small-waterplane two-body type high-performance water area unmanned inspecting device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106956746A (en) * | 2016-01-11 | 2017-07-18 | 刘明江 | High-speed boat |
| CN106956746B (en) * | 2016-01-11 | 2018-11-27 | 刘明江 | High-speed boat |
| CN107539420A (en) * | 2017-08-29 | 2018-01-05 | 中国船舶科学研究中心上海分部 | A kind of small waterplane area twin hull ship with stabilising fin |
| CN107539420B (en) * | 2017-08-29 | 2024-06-11 | 中国船舶科学研究中心上海分部 | Small waterplane area catamaran with stabilizing fins |
| CN109747769A (en) * | 2019-03-08 | 2019-05-14 | 大连海事大学 | Double-layer splash-proof strip structure arranged on high-speed catamaran |
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| Publication number | Publication date |
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| CN102407919B (en) | 2015-02-25 |
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