CN2799392Y - Low wave-making dual-body ship - Google Patents
Low wave-making dual-body ship Download PDFInfo
- Publication number
- CN2799392Y CN2799392Y CN 200520096418 CN200520096418U CN2799392Y CN 2799392 Y CN2799392 Y CN 2799392Y CN 200520096418 CN200520096418 CN 200520096418 CN 200520096418 U CN200520096418 U CN 200520096418U CN 2799392 Y CN2799392 Y CN 2799392Y
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- ship
- lamellar body
- catamaran
- lamellar
- low wave
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Abstract
The utility model relates to a low wave-making dual-body ship, which is provided with two ship block bodies, wherein the two block bodies are connected through a connection bridge in a rigid way, the aspect ratio L/b of each block body is 10-38, wherein L is the waterline length of the ship block body and b is the waterline breadth of the ship block body. The utility model has the technical scheme that the front part of the ship is provided with a bulb bow. The utility model has the advantages that the waterline area is reduced, the entry angle is greatly reduced, and the wave made in the bow part can be further reduced; the flow state of the tail part can be improved if a ball stern is additionally arranged, and the propulsion efficiency is enhanced; a plurality of ship model tests show that the dual-body ship has the advantages of small wave-making, low washing, small resistance, light draught, etc.
Description
Technical field
The utility model relates to a kind of two lamellar bodies of low wave making catamaran, especially ship by the rigidly connected catamaran of connecting bridge.
Background technology
Inland navigation craft is the wave that boats and ships rose of navigation especially at a high speed, and the safe navigation that not only can influence canoe also can cause embankment and wash away, and promptly reaches several hundred million units according to the data record is annual because of washing away the loss that embankment causes.Chinese patent 97240937.8 discloses a kind of low wave making catamaran, it has 2 ship lamellar bodies, 2 lamellar bodies are rigidly connected by the connecting bridge formation, the aspect ratio L/b of each lamellar body is 16～38, and the prior art L/b that is disclosed between it is 10～14, wherein, L is a ship lamellar body length on water line, and b is the ship waterline breadth of demihull for catamaran.This patent passes through to strengthen the aspect ratio of ship lamellar body, wave and wave making resistance when having reduced navigation effectively.Promptly be difficult to further reduce wave under the situation that problem is big at displacement of volume or angle of attack is bigger.
The utility model content
The purpose of this utility model is to provide a kind of low wave making catamaran, it is by the improvement to the ship slice shape, not only can increase substantially the speed of a ship or plane, and make ship wave making minimum, also be about to wave making washing away and reduce to minimum the bank levee bank to the influence of other navigating ship.
The technical scheme that realizes the utility model purpose is: a kind of low wave making catamaran, have 2 ship lamellar bodies, and two lamellar bodies are rigidly connected by connecting bridge, the aspect ratio L/b of each lamellar body is 10～38, and wherein, L is a ship lamellar body length on water line, b is the ship waterline breadth of demihull for catamaran, it is characterized in that: bow is provided with ball head.
And the afterbody of ship is provided with the ball tail.
And each lamellar body is elongate, its slenderness ratio L/V
1/3Be 8～16, wherein, V is the displacement of volume of ship lamellar body.
And the lamellar body section lines of ship is symmetry or asymmetric.
And the lamellar body bench section of ship is dark v type or slack bulge type.
And the lamellar body bench section of ship is short knuckle type of slack bulge or knuckle type.
And, being equiped with the wave absorption hydrofoil between two lamellar bodies and/or strengthening hydrofoil, the stem outside of two lamellar bodies is provided with the wave absorption hydrofoil, and afterbody is provided with tailgate or tail wedge.
The utility model has the advantages that: 1. owing on elongated ship lamellar body, installed ball head additional, can reduce waterplane, thereby make angle of attack greatly reduce, can further reduce the stem wave making; 2. install the ball tail additional and can improve the afterbody fluidised form, improve propulsion coefficient; 3. show through model experiment repeatedly that this catamaran has that wave making washes away for a short time, low, advantages such as resistance is little, shallow draft.
Description of drawings
Fig. 1 is the scheme drawing of the utility model structure.
Fig. 2 is the birds-eye view of catamaran.
Fig. 3 is the sketch of the signal beam.
Fig. 4 is that the lamellar body bench section is the scheme drawing of dark v type.
Fig. 5 is that the lamellar body bench section is the drawing in side sectional elevation longitudinally of slack bulge type.
Fig. 6 is that the lamellar body bench section is the drawing in side sectional elevation longitudinally of slack bulge knuckle type.
Fig. 7 is that the lamellar body bench section is the drawing in side sectional elevation longitudinally of single knuckle type.
Fig. 8 is that the lamellar body bench section is the drawing in side sectional elevation longitudinally of two-fold angle type.
Fig. 9 is that the lamellar body bench section is a knuckle vee-type drawing in side sectional elevation longitudinally.
Figure 10 is the scheme drawing that is provided with hydrofoil.
Figure 11 is the section-drawing of hydrofoil.
Figure 12 is the scheme drawing that quarter of a ship is provided with tailgate.
Figure 13 is the scheme drawing that quarter of a ship is provided with the tail wedge.
The specific embodiment
With reference to Fig. 1～Figure 13, realize the utility model preferred embodiment below in conjunction with description of drawings.At first, as a whole, the technical program has 2 ship lamellar bodies 2, two lamellar bodies 2 are rigidly connected by connecting bridge 1, and the aspect ratio L/b of each lamellar body 2 is 10～38, wherein, L is a ship lamellar body length on water line, and b is the ship waterline breadth of demihull for catamaran, and its improvement is: bow is provided with ball head 4.
And the afterbody of ship can be provided with ball tail 5.This can improve the afterbody fluidised form, improve propulsion coefficient.
Suggestion: as Froude number Fn=v/ (gL)
1/2(v is a Design Speed, and g is an acceleration due to gravity, and L is the lamellar body length on water line) less than 0.3 o'clock, L/b=10～20; When Fn=0.30～0.60, L/b=12～30; When Fn=0.60～1.50, L/b=13～38.
Further technical scheme can be: each lamellar body 2 is elongate, its slenderness ratio L/V
1/3Be 8～16, wherein, V is the displacement of volume of ship lamellar body 2.
From the bench section (referring to Fig. 4～9), the both sides of its vertical axis can be asymmetric.Fig. 4～Fig. 9, illustrated the cross section shape of 6 kinds of lamellar body ship types altogether, wherein, respectively this figure has provided respectively along lamellar body 25 bench section longitudinally, that is the lamellar body bench section can be short knuckle type 8 (Fig. 6) of dark v type 6 (Fig. 4), slack bulge type 7 (Fig. 5), slack bulge or knuckle type 9,10,11 (Fig. 7～Fig. 9).Described knuckle type 9,10,11 comprises: single knuckle type 9 (Fig. 7), two-fold angle type 10 (Fig. 8) and knuckle v type 11 (Fig. 9).
Further technical scheme can also be: be equiped with wave absorption hydrofoil 12,13 between two lamellar bodies 2 and/or strengthen hydrofoil 14, the stem outside of two lamellar bodies 2 is provided with wave absorption hydrofoil 15, this will help to eliminate wave, in reduce wave resistance during the high speed of a ship or plane and increase Joint strenght between two lamellar bodies 2.Meanwhile, can be provided with tailgate 16 or tail wedge 17 at the afterbody of lamellar body 2, its function is to avoid stern too to sink when high speed, to reduce resistance.
For example, by certain ship length overall 38.5m that the technical program is made, beam overall 7.00m, the wide 2.00m of sheet spare, designed draft 1.00m, Design Speed 30Kn.Be converted to real ship as can be known by the model experiment result, when being Design Speed, at one times of captain place, recording the maximum crest of real ship is 108mm, and maximum trough is 115mm, and tail sinking scope is 120～140mm only, and the midships section wave height is 360mm between two lamellar bodies.
Again for example, at certain high speed water power basin, adopt 3 meters big ship models how long to do a series of tests.Consequently: record wave height at 0.7 times of captain place, knuckle type bench section ship type is converted to only 170mm of the maximum crest of real ship, maximum trough 280mm when 30kn.Confirm further that thus the technical program has significantly low wave making performance.
Claims (7)
1. one kind low wave making catamaran has 2 ship lamellar bodies, and two lamellar bodies are rigidly connected by connecting bridge, and the aspect ratio L/b of each lamellar body is 10～38, and wherein, L is a ship lamellar body length on water line, and b is the ship waterline breadth of demihull for catamaran, it is characterized in that: bow is provided with ball head.
2. low wave making catamaran according to claim 1, it is characterized in that: the afterbody of ship is provided with the ball tail.
3. low wave making catamaran according to claim 1 and 2, it is characterized in that: each lamellar body is elongate, its slenderness ratio L/V
1/3Be 8～16, wherein, V is the displacement of volume of ship lamellar body.
4. low wave making catamaran according to claim 3 is characterized in that: the lamellar body section lines of ship is symmetry or asymmetric.
5. low wave making catamaran according to claim 3 is characterized in that: the lamellar body bench section of ship is dark v type or slack bulge type.
6. low wave making catamaran according to claim 3 is characterized in that: the lamellar body bench section of ship is short knuckle type of slack bulge or knuckle type.
7. according to any described low wave making catamaran in the claim 4～6, it is characterized in that: be equiped with the wave absorption hydrofoil between two lamellar bodies and/or strengthen hydrofoil, the stem outside of two lamellar bodies is provided with the wave absorption hydrofoil, and afterbody is provided with tailgate or tail wedge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520096418 CN2799392Y (en) | 2005-05-20 | 2005-05-20 | Low wave-making dual-body ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520096418 CN2799392Y (en) | 2005-05-20 | 2005-05-20 | Low wave-making dual-body ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2799392Y true CN2799392Y (en) | 2006-07-26 |
Family
ID=36841886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520096418 Expired - Lifetime CN2799392Y (en) | 2005-05-20 | 2005-05-20 | Low wave-making dual-body ship |
Country Status (1)
| Country | Link |
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| CN (1) | CN2799392Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103612707A (en) * | 2013-11-21 | 2014-03-05 | 江苏科技大学 | Straight wall constant wetted length slideway type round bilge speed boat shape |
| CN106515998A (en) * | 2016-10-27 | 2017-03-22 | 湖北天龙高速船业有限公司 | Low-wave low-resistance dual-body cargo ship profile |
| CN108516046A (en) * | 2018-04-18 | 2018-09-11 | 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 |
| CN108516047A (en) * | 2018-04-18 | 2018-09-11 | 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） | Tail wedge installation method |
| CN109895938A (en) * | 2019-03-06 | 2019-06-18 | 武汉理工大学 | A kind of shark fins bow structure and its bulb bow ship type |
-
2005
- 2005-05-20 CN CN 200520096418 patent/CN2799392Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103612707A (en) * | 2013-11-21 | 2014-03-05 | 江苏科技大学 | Straight wall constant wetted length slideway type round bilge speed boat shape |
| CN103612707B (en) * | 2013-11-21 | 2016-01-06 | 江苏科技大学 | The surely wet long chute type slack bulge speedboat ship type of straight wall |
| CN106515998A (en) * | 2016-10-27 | 2017-03-22 | 湖北天龙高速船业有限公司 | Low-wave low-resistance dual-body cargo ship profile |
| CN108516046A (en) * | 2018-04-18 | 2018-09-11 | 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 |
| CN108516047A (en) * | 2018-04-18 | 2018-09-11 | 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） | Tail wedge installation method |
| CN108516046B (en) * | 2018-04-18 | 2020-06-19 | 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 with a detachable cover |
| CN108516047B (en) * | 2018-04-18 | 2020-06-19 | 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） | Tail wedge installation method |
| CN109895938A (en) * | 2019-03-06 | 2019-06-18 | 武汉理工大学 | A kind of shark fins bow structure and its bulb bow ship type |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150520 Granted publication date: 20060726 |