CN109895938A - A kind of shark fins bow structure and its bulb bow ship type - Google Patents
A kind of shark fins bow structure and its bulb bow ship type Download PDFInfo
- Publication number
- CN109895938A CN109895938A CN201910166427.1A CN201910166427A CN109895938A CN 109895938 A CN109895938 A CN 109895938A CN 201910166427 A CN201910166427 A CN 201910166427A CN 109895938 A CN109895938 A CN 109895938A
- Authority
- CN
- China
- Prior art keywords
- bow
- hull
- ship
- shark fins
- ship type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
Landscapes
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Physical Water Treatments (AREA)
Abstract
The present invention provides a kind of shark fins bow structure, including upper and lower part, and lower part is ball nose；The front end on top is vertical with sea level, is postponed upwards to hull fore body surface, is connected to the ball nose downwards, backward with hull smooth connection.Structure of the invention is due to there is the narrow front end as hull fore body, it can change the mobility status of protocorm nose recess water flow, slow down streamline degrees of expansion, effectively reduce the wave breaking resistance during ship's navigation, the reduction of wave making resistance is acted on without influencing bulb bow, to solve the problems, such as that loose type bulb bow ship type resistance in middle lowsteaming increases.
Description
Technical field
The present invention relates to Ship Design fields, and in particular to a kind of shark fins bow structure and its bulb bow ship type.
Background technique
Bulb bow, also known as " ball bow ", i.e. ship bow part water surface spherical projecting below point are that one kind is used to reduce ship resistance
The structure of power.Its size and shape is matched with hull to play negative function to the pressure of water, so that the ship wave generated is smaller, and
Hull streamflow regime nearby can be improved, to reduce the resistance of ship.Head is also known as ball nose, pattern have droplet-shaped, breakhead type,
SV type, pears type etc. are a variety of.Different shapes respectively has its advantage, suitable for different ship types.Such as droplet-shaped, it is more suitable for navigating
The higher passenger-cargo vessel of speed, and breakhead type ball nose is suitable for plentiful oil carrier, orecarrier and bulk carrier etc..However bulb bow is this
There is also certain problems for structure.Due to the addition of bulb bow structure, increase the area of ship and water contact, i.e. ship
Wet structure area increases water to the viscous drag of ship, once shape design is unreasonable, " may increase to ship instead
Resistance ", further, since the presence of bulb bow, the flow field of stem middle and upper part point will by uniformly becoming disorder, thus generate it is additional because
Augmentation of resistance caused by the unfavorable factors such as whirlpool, therefore bulb bow structure, there is still a need for further perfect, there is also very big
Development space.
Summary of the invention
The technical problem to be solved by the present invention is providing a kind of shark fins bow structure and its bulb bow ship type, Neng Gougai
Kind fore body flow field, achievees the purpose that drag-reduction energy-saving.
The technical solution taken by the invention to solve the above technical problem are as follows: a kind of shark fins bow structure, feature
Be: this structure includes upper and lower part, and lower part is ball nose；The front end on top is vertical with sea level, is postponed upwards to hull bow
Portion surface is connected to downwards the ball nose, backward with hull smooth connection.
According to the above scheme, the top is attached body structure, and the fore body for being installed at bulb bow ship type forms.
According to the above scheme, the installation passes through welding manner.
A kind of bulb bow ship type, it is characterised in that: it includes the shark fins bow structure.
The invention has the benefit that
1, structure of the invention is due to there is the narrow front end as hull fore body, thus it is possible to vary the stream of protocorm nose recess water flow
Emotionally condition slows down streamline degrees of expansion, effectively reduces the wave breaking resistance during ship's navigation, without influencing bulb bow to wave making
The reduction of resistance acts on, to solve the problems, such as that loose type bulb bow ship type resistance in middle lowsteaming increases.
2, increase structure of the invention in original bulb bow ship type, the change very little of area is always soaked for hull, because
Viscous drag influence when this is for ship's navigation can be ignored.
3, smooth connection is carried out with main hull by welding, and possesses the symmetry about hull central fore-and-aft vertical plane,
Therefore the presence of the innovation structure had both met the intensity requirement of ship entirety, reduces draw since Curvature varying is excessive as far as possible
The additional friction increment risen, to maximumlly improve the resistance reducing performance of the structure, also possesses certain breaker ability, for
Reducing Added Resistance has certain help.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the invention.
Fig. 2 is the side view of prior art ship type.
Fig. 3 is the side view of ship type after installing the present invention additional.
Fig. 4 is prior art ship type and the front view comparison for installing ship type stem direction after the present invention additional.
In figure: the top 1-, 2- ball nose, 3- prior art top, 4- recess, A- prior art ship type, B- ship of the present invention
Type.
Specific embodiment
Below with reference to specific example and attached drawing, the present invention will be further described.
The present invention provides a kind of shark fins bow structure, as shown in Figure 1, this structure includes top 1 and lower part, lower part is ball
Nose 2；The front end on top is vertical with sea level, is postponed upwards to hull fore body surface, is connected to the ball nose 2 downwards, backward
With hull smooth connection.
Fig. 2 is the side view of prior art ship type, has recess between prior art ship type top 3 and ball nose 2；Such as Fig. 3 institute
Show, improved in prior art ship type, installs top 1 of the present invention additional and be used as attached body structure；As shown in figure 4, left-half is
The front view of prior art ship type A has half portion to be divided into the front view of ship type B of the present invention.It can be seen from the figure that top of the present invention
1 can fill up recess 4 just, so that section becomes the narrow front end as hull fore body at this, to change water flow herein
Mobility status, slow down streamline degrees of expansion, effectively reduce the wave breaking resistance during ship's navigation, without influence bulb bow pair
The reduction of wave making resistance acts on.And the increase of attached body structure, the change very little of area is always soaked to hull, therefore navigate for ship
Viscous drag influence when row can be ignored.
The installation carries out smooth connection with main hull by welding by welding manner, and possess about
The symmetry of hull central fore-and-aft vertical plane, therefore the presence of the innovation structure had both met the intensity requirement of ship entirety, subtracted as far as possible
Lack since additional friction caused by Curvature varying is excessive is rised in value, to maximumlly improve the resistance reducing performance of the structure,
Possess certain breaker ability, has certain help for reducing Added Resistance.
Above embodiments are merely to illustrate design philosophy and feature of the invention, and its object is to make technology in the art
Personnel can understand the content of the present invention and implement it accordingly, and protection scope of the present invention is not limited to the above embodiments.So it is all according to
It is within the scope of the present invention according to equivalent variations made by disclosed principle, mentality of designing or modification.
Claims (4)
1. a kind of shark fins bow structure, it is characterised in that: this structure includes upper and lower part, and lower part is ball nose；Before top
End is vertical with sea level, is postponed upwards to hull fore body surface, is connected to the ball nose downwards, connects backward with hull fairing
It connects.
2. shark fins bow structure according to claim 1, it is characterised in that: the top is attached body structure, is installed additional
It is formed in the fore body of bulb bow ship type.
3. shark fins bow structure according to claim 2, it is characterised in that: the installation passes through welding manner.
4. a kind of bulb bow ship type, it is characterised in that: it includes shark fins stem described in any one of claims 1 to 3
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910166427.1A CN109895938B (en) | 2019-03-06 | 2019-03-06 | Shark fin bow structure and bulbous bow type thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910166427.1A CN109895938B (en) | 2019-03-06 | 2019-03-06 | Shark fin bow structure and bulbous bow type thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109895938A true CN109895938A (en) | 2019-06-18 |
| CN109895938B CN109895938B (en) | 2022-06-17 |
Family
ID=66946512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910166427.1A Active CN109895938B (en) | 2019-03-06 | 2019-03-06 | Shark fin bow structure and bulbous bow type thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109895938B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191411788A (en) * | 1914-05-13 | 1915-05-06 | Lewis Jacobson | Ship Protector. |
| JPH08142974A (en) * | 1994-11-21 | 1996-06-04 | Mitsubishi Heavy Ind Ltd | Large full ship having means of improving propulsive performance in wave |
| CN2799392Y (en) * | 2005-05-20 | 2006-07-26 | 王彩当 | Low wave-making dual-body ship |
| CN102092457A (en) * | 2009-12-09 | 2011-06-15 | 三菱重工业株式会社 | Ship |
| CN202703839U (en) * | 2012-08-20 | 2013-01-30 | 中集船舶海洋工程设计研究院有限公司 | Head portion structure of container ship |
| CN105197179A (en) * | 2015-10-29 | 2015-12-30 | 上海交通大学 | Vertical bow and front edge drainage combined damping structure used for low speed full formed ship |
| CN106627984A (en) * | 2016-05-10 | 2017-05-10 | 中国人民解放军海军工程大学 | Stem wave inhibiting and roll stabilization appendage |
| CN107107989A (en) * | 2015-01-13 | 2017-08-29 | 三菱重工业株式会社 | Ship |
| CN107672737A (en) * | 2017-09-08 | 2018-02-09 | 哈尔滨工程大学 | A kind of deformable glider for taking into account rapidity and sea-keeping |
| CN107826208A (en) * | 2017-10-26 | 2018-03-23 | 中国船舶工业集团公司第七0八研究所 | A kind of bow island semi-submerged ship ship type |
-
2019
- 2019-03-06 CN CN201910166427.1A patent/CN109895938B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191411788A (en) * | 1914-05-13 | 1915-05-06 | Lewis Jacobson | Ship Protector. |
| JPH08142974A (en) * | 1994-11-21 | 1996-06-04 | Mitsubishi Heavy Ind Ltd | Large full ship having means of improving propulsive performance in wave |
| CN2799392Y (en) * | 2005-05-20 | 2006-07-26 | 王彩当 | Low wave-making dual-body ship |
| CN102092457A (en) * | 2009-12-09 | 2011-06-15 | 三菱重工业株式会社 | Ship |
| CN202703839U (en) * | 2012-08-20 | 2013-01-30 | 中集船舶海洋工程设计研究院有限公司 | Head portion structure of container ship |
| CN107107989A (en) * | 2015-01-13 | 2017-08-29 | 三菱重工业株式会社 | Ship |
| CN105197179A (en) * | 2015-10-29 | 2015-12-30 | 上海交通大学 | Vertical bow and front edge drainage combined damping structure used for low speed full formed ship |
| CN106627984A (en) * | 2016-05-10 | 2017-05-10 | 中国人民解放军海军工程大学 | Stem wave inhibiting and roll stabilization appendage |
| CN206528588U (en) * | 2016-05-10 | 2017-09-29 | 中国人民解放军海军工程大学 | Bow suppression ripple, which subtracts, shakes attached body |
| CN107672737A (en) * | 2017-09-08 | 2018-02-09 | 哈尔滨工程大学 | A kind of deformable glider for taking into account rapidity and sea-keeping |
| CN107826208A (en) * | 2017-10-26 | 2018-03-23 | 中国船舶工业集团公司第七0八研究所 | A kind of bow island semi-submerged ship ship type |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109895938B (en) | 2022-06-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102348598B (en) | Ship's fore body form | |
| CN103231772B (en) | A kind of arc foreship stem line structure of dredging high speed vessel shipping of green water | |
| CN103612707B (en) | The surely wet long chute type slack bulge speedboat ship type of straight wall | |
| CN106564596B (en) | A kind of compound ship type of the high-performance of amphibious aircraft | |
| RU2536568C1 (en) | Eyes of ship hull with higher icebreaking capability | |
| KR20090036128A (en) | Stern shape for displacement type ship | |
| US20160229489A1 (en) | Vessel having an improved hull shape | |
| CN109895938A (en) | A kind of shark fins bow structure and its bulb bow ship type | |
| CN108945280B (en) | M-shaped wave-absorbing planing boat with bulb | |
| CN106314676A (en) | High-speed and high-wave-resistant double-sheet-body multi-body planing boat | |
| WO2012007035A1 (en) | Ship with bulbous bow | |
| KR20180014158A (en) | Ship | |
| KR20130055996A (en) | Streamlined form protuberance for ships to reduce wave making resistance around bow | |
| JP6041440B2 (en) | Fin device and ship | |
| CN102336247B (en) | Wing flap fishtail fin | |
| US3090338A (en) | Ship's hull formation | |
| CN113799914B (en) | Stern structure and ship | |
| CN102700680B (en) | Displacement pilot boat | |
| CN104608874A (en) | Hovering type high-performance ground effect ship | |
| CN106080951B (en) | A kind of double compound stems of ball nose with hydrofoil | |
| CN103661790B (en) | Straight wall slide way type hard chine glider ship type | |
| CN208248417U (en) | A kind of ship reducing ship resistance | |
| CN109292086B (en) | Float bowl of water surface aircraft | |
| CN103612709B (en) | The surely wet long chute type hard chine glider ship type of straight wall | |
| US9908589B1 (en) | Hull shape for improved powering and seakeeping |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |