CN101891006B - High-speed rounded bilge type boat utilizing air cavity to reduce resistance - Google Patents
High-speed rounded bilge type boat utilizing air cavity to reduce resistance Download PDFInfo
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- CN101891006B CN101891006B CN2010102115266A CN201010211526A CN101891006B CN 101891006 B CN101891006 B CN 101891006B CN 2010102115266 A CN2010102115266 A CN 2010102115266A CN 201010211526 A CN201010211526 A CN 201010211526A CN 101891006 B CN101891006 B CN 101891006B
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- air cavity
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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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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention relates to a high-speed rounded bilge type boat utilizing an air cavity to reduce resistance. The high-speed bilge type boat of the invention comprises a boat body, a propulsion system and a gas supply system arranged in the boat body, and is characterized in that the bottom surface of the boat body is provided with an inward concave air cavity; the air cavity is composed of two arc board lateral fins; the width of the air cavity gradually increases from the head part to the tail part of the boat body, the front part of the air cavity is provided with a head platform, and the rear part of the air cavity is provided with a wedge bulge; and an air inlet used in the gas supply system to supply gas to the air cavity is arranged at the fault-step position of the head platform. The high-speed rounded bilge type boat of the invention is provided with the reasonable air cavity structure, the head platform is arranged at the front part of the air cavity, and the wedge bulge is arranged at the rear part of the air cavity, thus ensuring the stability of inlayer air in the air cavity and the resistance reducing function of the air cavity, being capable of effectively reducing frictional resistance in the sailing process of the boat body, saving fuel materials and effectively improving the propulsive efficiency.
Description
Technical field
The present invention relates to a kind of high-speed boat, especially relate to a kind of high-speed rounded bilge type boat utilizing air cavity to reduce resistance of friction drag when utilizing air cavity to reduce the hull navigation.
Background technology
At present, some large ships arrange air cavity in the bottom, and in air cavity, inject air, thereby reduce the area of contact between hull bottom surface and the water, friction drag when navigating by water to reduce hull, fuel saving and Effective Raise propulsion coefficient, a kind of hull bottom is provided with the ocean steamer of a plurality of air cavitys as US Patent No. 3595191 discloses.This air cavity that consists of with smooth hull bottom surface and vertical partition wall is only applicable to the lower boats and ships of the speed of a ship or plane, if be used for the complicated slack bulge type ship of hull bottom shape, during high speed slack bulge type ship that especially speed of a ship or plane is higher, can cause the air in the air cavity to leak in a large number, make the too high power of propulsion system loss, and can't produce obvious drag-reduction effect.
Summary of the invention
The applicant is studied improvement for above-mentioned problem, and a kind of high-speed rounded bilge type boat utilizing air cavity to reduce resistance is provided, and rational air cavity structure is set, friction drag, fuel saving and Effective Raise propulsion coefficient when effectively reducing the hull navigation.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of high-speed rounded bilge type boat utilizing air cavity to reduce resistance, comprise hull, propulsion system and be arranged on the interior gas supply system of hull, described hull bottom surface is provided with the air cavity of indent, two side of a ship lateral fins that consist of described air cavity are curved, the width of described air cavity becomes large by the hull stem gradually to the hull afterbody, the front portion of described air cavity is provided with the stem platform, and the rear portion of described air cavity is provided with the wedge projection, is used for gas supply system is arranged on faulted-stage place from the stem platform to the admission port of air cavity air feed.
Further:
Described air cavity by the center buttock place of hull vertically cut apart fin and at least one is divided into a plurality of little air cavitys perpendicular to the horizontal partition fin of vertically cutting apart fin.
Be respectively equipped with air extractor vent described vertically cutting apart on fin and the described horizontal partition fin, and air extractor vent is communicated with each adjacent little air cavity.
Described air extractor vent is arranged on the described junction of vertically cutting apart fin and described horizontal partition fin and hull bottom surface.
The height of described wedge projection is by reducing gradually to both sides in the middle of the hull bottom surface, reduced gradually to the front portion by the rear portion of hull bottom surface.
The surface of described wedge projection is stream line pattern.
Technique effect of the present invention is:
A kind of high-speed rounded bilge type boat utilizing air cavity to reduce resistance disclosed by the invention, rational air cavity structure is set, and in the air cavity front portion stem platform is set, the air cavity rear portion arranges the wedge projection, can guarantee the drag reduction effect of stablizing and guarantee air cavity of air cavity inner air, friction drag, fuel saving and Effective Raise propulsion coefficient when effectively reducing the hull navigation.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is hull bottom surface structure schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, 2, the present invention includes hull 1, propulsion system 2 and be arranged on gas supply system 3 in the hull 1, hull 1 bottom surface is provided with the air cavity 4 of indent, two side of a ship lateral fins 401 that consist of air cavity 4 are curved, the width of air cavity 4 becomes large by the hull stem gradually to the hull afterbody, such air cavity version meets navigation and the constructional feature of high speed slack bulge type ship, reduces gas in the air cavity 4 in the underway leakage of high speed, guarantees the effect of drag reduction.The front portion of air cavity 4 is provided with stem platform 5, the rear portion of air cavity 4 is provided with wedge projection 6, be used for gas supply system 3 is arranged on faulted-stage 8 places from stem platform 5 to the admission port 7 of air cavity 4 air feed, in the present embodiment, the height of wedge projection 6 reduces to both sides gradually by in the middle of the hull bottom surface, rear portion by the hull bottom surface reduces gradually to the front portion, and the surface of wedge projection 6 is stream line pattern.In the front portion of air cavity 4 stem platform 5 is set and meets principles of hydrodynamics, can better make current in the mild transition in faulted-stage 403 places of air cavity 4, unlikely generation sudden change and cause the leakage of air cavity 4 Airs; And afterbody must be carved type projection 6 and mainly contains two effects, at first, with air cavity 4 gas leakages guiding hull 1 both sides, it is leaked from both sides, the interference of gas leakage to the screw propeller of afterbody propulsion system 2 reduced, and secondly, the design of wedge projection 6 surface streamline types is similar to aircraft wing, certain bottom lift can be provided, the resistance that reduces hull is played a role.In addition, stem platform 5 is divided into bottom air cavity 4 two-layer with 6 combineds action of wedge projection, can guarantee the stable of air cavity inner air when high speed slack bulge type ship navigates by water in wave, keep the larger area of contact in air cavity inner air and hull bottom, can guarantee the drag reduction effect of air cavity.Air cavity 4 is divided into 4 stingy chambeies 402 by vertically cut apart fin 9 and one at the center buttock place of hull 1 perpendicular to the horizontal partition fin 10 of vertically cutting apart fin, and the magnitude setting of horizontal partition fin 10 is determined according to the length of hull.In the present embodiment, vertically cut apart on fin 9 and the horizontal partition fin 10 and be respectively equipped with air extractor vent 11, air extractor vent 11 is communicated with each adjacent stingy chamber 402, air extractor vent 11 is arranged on the junction of vertically cutting apart fin 9 and horizontal partition fin 10 and hull bottom surface, that is to say, air extractor vent 11 is arranged on vertically cuts apart fin 9 and place, horizontal partition fin 10 close hull bottom surface.Hull occurs in wave when oblique than heavy list, one or several independently understands the leakage that air occur in stingy chamber 402, thereby cause the unstable and overbalance of hull resistance and buoyancy, air extractor vent 11 is communicated with each adjacent stingy chamber 402, each stingy chamber 402 is replenished rapidly mutually by air extractor vent 11, make the air layer in each stingy chamber 402 remain stable, thereby keep the stable and balance of hull resistance and buoyancy.Test result shows, the air leakage in the air cavity of the present invention is little, and drag-reduction effect is obvious.
Claims (3)
1. air cavity drag reduction slack bulge type ship, comprise hull, propulsion system and be arranged on gas supply system in the hull, described hull bottom surface is provided with the air cavity of indent, two side of a ship lateral fins that consist of described air cavity are curved, the width of described air cavity becomes large by the hull stem gradually to the hull afterbody, the front portion of described air cavity is provided with the stem platform, the rear portion of described air cavity is provided with the wedge projection, be used for gas supply system is arranged on faulted-stage place from the stem platform to the admission port of air cavity air feed, it is characterized in that: described air cavity by the center buttock place of hull vertically cut apart fin and at least one is divided into a plurality of little air cavitys perpendicular to the horizontal partition fin of vertically cutting apart fin.
2. according to air cavity drag reduction slack bulge type ship claimed in claim 1, it is characterized in that: be respectively equipped with air extractor vent described vertically cutting apart on fin and the described horizontal partition fin, and air extractor vent is communicated with each adjacent little air cavity.
3. according to air cavity drag reduction slack bulge type ship claimed in claim 2, it is characterized in that: described air extractor vent is arranged on the described junction of vertically cutting apart fin and described horizontal partition fin and hull bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102115266A CN101891006B (en) | 2010-06-29 | 2010-06-29 | High-speed rounded bilge type boat utilizing air cavity to reduce resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102115266A CN101891006B (en) | 2010-06-29 | 2010-06-29 | High-speed rounded bilge type boat utilizing air cavity to reduce resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101891006A CN101891006A (en) | 2010-11-24 |
| CN101891006B true CN101891006B (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102115266A Expired - Fee Related CN101891006B (en) | 2010-06-29 | 2010-06-29 | High-speed rounded bilge type boat utilizing air cavity to reduce resistance |
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| Country | Link |
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| CN (1) | CN101891006B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103144737B (en) * | 2012-05-29 | 2015-06-17 | 林思桐 | Air resistance-reduced ship with front propelling plant and skeg course control system |
| RU2530905C1 (en) * | 2013-04-29 | 2014-10-20 | Российская Федерация, От Имени Которой Выступает Министерство Промышленности И Торговли Российской Федерации | Vessel with bottom air cavity |
| 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 |
| CN103661791B (en) * | 2013-11-21 | 2016-06-01 | 江苏科技大学 | There is the sharp bilge Planing boat ship type of constant wetted length |
| CN108945279B (en) * | 2017-05-19 | 2023-09-19 | 常州玻璃钢造船厂有限公司 | Double-breaking-stage planing boat |
| CN108945285B (en) * | 2017-05-19 | 2023-09-15 | 常州玻璃钢造船厂有限公司 | Three-stage planing boat |
| CN109866870B (en) * | 2019-03-28 | 2023-09-22 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Bow line type of ice area navigation ship |
| CN112219802B (en) * | 2020-10-19 | 2022-03-01 | 中国船舶科学研究中心 | Fishery resource survey ship |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4231314A (en) * | 1978-02-17 | 1980-11-04 | Michael Peters | Hydroplane boat |
| CN1142804A (en) * | 1993-11-29 | 1997-02-12 | 西弗莱特有限公司 | Vessel having a high-speed planing or semi-planing hull |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58177790A (en) * | 1982-04-10 | 1983-10-18 | Mitsui Eng & Shipbuild Co Ltd | Ship |
| RU2041116C1 (en) * | 1993-09-08 | 1995-08-09 | Товарищество с ограниченной ответственностью "Бюро скоростных судов" | High-speed vessel |
| JPH10100985A (en) * | 1996-10-01 | 1998-04-21 | 信也 ▲高▼原 | Ship bottom structure for reducing water frictional resistance of ship |
-
2010
- 2010-06-29 CN CN2010102115266A patent/CN101891006B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4231314A (en) * | 1978-02-17 | 1980-11-04 | Michael Peters | Hydroplane boat |
| CN1142804A (en) * | 1993-11-29 | 1997-02-12 | 西弗莱特有限公司 | Vessel having a high-speed planing or semi-planing hull |
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| Publication number | Publication date |
|---|---|
| CN101891006A (en) | 2010-11-24 |
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Granted publication date: 20130327 Termination date: 20190629 |
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| CF01 | Termination of patent right due to non-payment of annual fee |