CN204527520U - A kind of drag reduction tailgate for pleasure-boat - Google Patents
A kind of drag reduction tailgate for pleasure-boat Download PDFInfo
- Publication number
- CN204527520U CN204527520U CN201520226617.5U CN201520226617U CN204527520U CN 204527520 U CN204527520 U CN 204527520U CN 201520226617 U CN201520226617 U CN 201520226617U CN 204527520 U CN204527520 U CN 204527520U
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- CN
- China
- Prior art keywords
- tailgate
- minor arc
- drag reduction
- pleasure
- line segment
- 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.)
- Expired - Fee Related
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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
For a drag reduction tailgate for pleasure-boat, the side of the horizontal profile of described tailgate is a line segment, and opposite side is the minor arc of a circle, and minor arc is connected with the two ends of line segment; One end of the longitudinal profile of described tailgate is most advanced and sophisticated, and the other end is a line segment, and the minor arc transition of two symmetries is passed through at two ends that are most advanced and sophisticated and line segment, and described minor arc is a circular part; The two ends of the horizontal section of described tailgate are most advanced and sophisticated, and centre is by the minor arc transition of two symmetries, and described minor arc is a circular part.Increase by installing tailgate additional " virtual length " of boats and ships; The distribution of pressure of body after change ship, makes oar card place Wake Field more even, increases hull efficiency, reduce resistance; Change wake flow waveform, reduce the generation of breaker, and the wave energy in whole hull flow field is reduced, thus reach the effect increasing propulsion coefficient.
Description
Technical field
The utility model relates to a kind of drag reduction tailgate for pleasure-boat.
Background technology
Luxurious pleasure-boat is one and navigates by water in ocean, sea, travels round in the luxurious even superluxurious hotel such as yarding up all over the world, food and drink, amusement, leisure, and luxurious pleasure-boat tourist industry has become the new growing point of global economic development.According to statistics, from the eighties in last century, the tourist arrivals of the luxurious pleasure-boat in the world every year with more than 8% speed increase, North America and Europe are global maximum pleasure-boat consumption markets.Estimate in 2010, only the European visitor Ke Da 3,600,000 person-times taking advantage of pleasure-boat to spend a holiday within the border, the income that European pleasure-boat economy is created can reach 12,700,000,000 Euros.Current China successively in Shanghai, Xiamen, Sanya built up International passenger Transport Center, to " 12 " end, will be 50 ~ 8,000,000,000 yuans according to estimating the direct economy contribution of pleasure-boat economy to Shanghai, macroeconomy contribution will be 150 ~ 20,000,000,000 yuans.Under the low situation in ship city, the lasting flourishing cruise order that makes of pleasure-boat economy still keeps high trend.
Along with luxurious pleasure-boat tourist industry develop rapidly, require also more and more higher to the hydrodynamic performance of pleasure-boat.Good hydrodynamic performance, except the safety that can increase ship's navigation and traveling comfort, also can have greatly improved to the energy-conservation of boats and ships and economy.So the hydrodynamic performance how actv. improves pleasure-boat has become the problem of the task of top priority.Naval vessel installs the resistance that tailgate can reduce 3% ~ 6% additional, and the identical speed of a ship or plane reaches the energy-saving effect of 5% ~ 12%, thus actv. improves ship resistance.Tailgate be exactly on the quarter locate to install additional backward one piece with stern transom plate flat board at an angle, its structure is simple, can not affect structure and the layout of main body, also need not emit very large technical risk.Tailgate of the prior art is dull and stereotyped, and its waveform effect produced is not good.
Utility model content
For solving the deficiencies in the prior art, the utility model provides a kind of drag reduction tailgate for pleasure-boat.
The technical scheme that the utility model provides is:
For a drag reduction tailgate for pleasure-boat, the side of the horizontal profile of described tailgate is a line segment, and opposite side is the minor arc of a circle, and minor arc is connected with the two ends of line segment;
One end of the longitudinal profile of described tailgate is most advanced and sophisticated, and the other end is a line segment, and the minor arc transition of two symmetries is passed through at two ends that are most advanced and sophisticated and line segment, and described minor arc is a circular part;
The two ends of the horizontal section of described tailgate are most advanced and sophisticated, and centre is by the minor arc transition of two symmetries, and described minor arc is a circular part.
Preferably, the length of described drag reduction tailgate is 70 ~ 80% of hull stern transom plate.
Preferably, the width of described drag reduction tailgate, namely the width of middle part the widest part is 1.5 ~ 3% of between perpendicular.
Preferably, the thickness of described tailgate, i.e. vertical distance between the highs and lows of tailgate is 2 ~ 5% of the length of tailgate.
Preferably, the inverted diherdral of described drag reduction tailgate is 5 ~ 8 degree.
Preferably, the circular radius residing for minor arc of the horizontal section of described drag reduction tailgate is 2.5 ~ 6.25 times of the length of tailgate.
The beneficial effects of the utility model: the utility model provides a kind of shape of drag reduction tailgate, improves tail flow field to reach, improve the object of pleasure-boat hydrodynamic performance.Increase by installing tailgate additional " virtual length " of boats and ships; The distribution of pressure of body after change ship, makes oar card place Wake Field more even, increases hull efficiency, reduce resistance; Change wake flow waveform, reduce the generation of breaker, and the wave energy in whole hull flow field is reduced, thus reach the effect increasing propulsion coefficient.
Tailgate of the present utility model can choose tailgate parameter according to the characteristic for pleasure-boat, to the strong adaptability of all kinds of pleasure-boat, assembling is simple, with low cost, can not affect structure and the layout of boats and ships entirety, and drag-reduction effect is obvious, and energy-saving benefit is remarkable.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that drag reduction tailgate of the present utility model is combined with hull;
Fig. 2 is the birds-eye view that drag reduction tailgate of the present utility model is combined with hull;
Fig. 3 is drag reduction tailgate of the present utility model and hull longitudinal sectional drawing;
Fig. 4 is the appearance schematic diagram of drag reduction tailgate of the present utility model;
Fig. 5 is the three-view diagram of drag reduction tailgate of the present utility model, and wherein a is birds-eye view, and b is side direction view, and c is afterbody view.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, a kind of drag reduction tailgate for pleasure-boat, the side of the horizontal profile of described tailgate 1 is a line segment, and opposite side is the minor arc of a circle, and minor arc is connected with the two ends of line segment; A in Fig. 5 is birds-eye view of the present utility model, its shape or exterior contour and horizontal cross similar.The length (Lf) of described drag reduction tailgate 1 is 70 ~ 80% of hull stern transom plate length.The width (Bf) of described drag reduction tailgate 1, namely the width of middle part the widest part is 1.5 ~ 3% of between perpendicular.
One end of the longitudinal profile of described tailgate 1 is most advanced and sophisticated, and the other end is a line segment, and the minor arc transition of two symmetries is passed through at two ends that are most advanced and sophisticated and line segment, and described minor arc is a circular part; B in Fig. 5 is side direction view of the present utility model, its shape or exterior contour and longitudinal sectional drawing similar.The thickness of described tailgate, i.e. vertical distance between the highs and lows of tailgate is 2 ~ 5% of the length of tailgate.
The two ends of the horizontal section of described tailgate 1 are most advanced and sophisticated, and centre is by the minor arc transition of two symmetries, and described minor arc is a circular part; C in Fig. 5 is afterbody view of the present utility model, its shape or exterior contour and transverse cross-sectional view similar.The circular radius residing for minor arc of the horizontal section of described drag reduction tailgate is 2.5 ~ 6.25 times of the length of tailgate.
Inverted diherdral (α) when the utility model drag reduction tailgate 1 is installed on hull is 5 ~ 8 degree.
Claims (6)
1., for a drag reduction tailgate for pleasure-boat, it is characterized in that:
The side of the horizontal profile of described tailgate is a line segment, and opposite side is the minor arc of a circle, and minor arc is connected with the two ends of line segment;
One end of the longitudinal profile of described tailgate is most advanced and sophisticated, and the other end is a line segment, and the minor arc transition of two symmetries is passed through at two ends that are most advanced and sophisticated and line segment, and described minor arc is a circular part;
The two ends of the horizontal section of described tailgate are most advanced and sophisticated, and centre is by the minor arc transition of two symmetries, and described minor arc is a circular part.
2. the drag reduction tailgate for pleasure-boat according to claim 1, is characterized in that:
The length of described drag reduction tailgate is 70 ~ 80% of hull stern transom plate.
3. the drag reduction tailgate for pleasure-boat according to claim 1, is characterized in that:
The width of described drag reduction tailgate, namely the width of middle part the widest part is 1.5 ~ 3% of between perpendicular.
4. the drag reduction tailgate for pleasure-boat according to claim 1, is characterized in that:
The thickness of described tailgate, i.e. vertical distance between the highs and lows of tailgate is 2 ~ 5% of the length of tailgate.
5. the drag reduction tailgate for pleasure-boat according to claim 1, is characterized in that:
The inverted diherdral of described drag reduction tailgate is 5 ~ 8 degree.
6. the drag reduction tailgate for pleasure-boat according to claim 1, is characterized in that:
The circular radius residing for minor arc of the horizontal section of described drag reduction tailgate is 2.5 ~ 6.25 times of the length of tailgate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520226617.5U CN204527520U (en) | 2015-04-15 | 2015-04-15 | A kind of drag reduction tailgate for pleasure-boat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520226617.5U CN204527520U (en) | 2015-04-15 | 2015-04-15 | A kind of drag reduction tailgate for pleasure-boat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204527520U true CN204527520U (en) | 2015-08-05 |
Family
ID=53741553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520226617.5U Expired - Fee Related CN204527520U (en) | 2015-04-15 | 2015-04-15 | A kind of drag reduction tailgate for pleasure-boat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204527520U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109911100A (en) * | 2019-04-17 | 2019-06-21 | 江苏科技大学 | A kind of high-speed craft having additional spin characteristics and its control method |
-
2015
- 2015-04-15 CN CN201520226617.5U patent/CN204527520U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109911100A (en) * | 2019-04-17 | 2019-06-21 | 江苏科技大学 | A kind of high-speed craft having additional spin characteristics and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20180415 |