CN1268463A - Fore part structure of ship - Google Patents
Fore part structure of ship Download PDFInfo
- Publication number
- CN1268463A CN1268463A CN00106009A CN00106009A CN1268463A CN 1268463 A CN1268463 A CN 1268463A CN 00106009 A CN00106009 A CN 00106009A CN 00106009 A CN00106009 A CN 00106009A CN 1268463 A CN1268463 A CN 1268463A
- Authority
- CN
- China
- Prior art keywords
- fore
- hull
- bow
- vertical line
- wall
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
-
- 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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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Body Structure For Vehicles (AREA)
- Vibration Prevention Devices (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention provides a bow structure which formed by projecting the bow part projecting to the front side of a bow vertical line, to cross tube surfaces with a specific cross section form respectively at the hull center surface at the front side of the bow vertical line, from the left and the right sides of the bow. And by composing by providing a tubular projection the width direction is narrowed as going to the bow front side, and a curved surface connecting the crossing parts of the tube surfaces smoothly, the manufacture of the bow part which has been considered difficult formerly is made possible to carry out easily, in a simple combination of curved surfaces to project the simple form of tube surfaces, not to be a complicated free curved surface, to the front side of the bow vertical line.
Description
The present invention relates to have the boats and ships fore part structure of the fore outstanding towards fore vertical line the place ahead in the underwater of boats and ships fore part.
On boats and ships, the wave drag that produces when on the water surface, navigating by water in order to lower, shown in Figure 10 A and Figure 10 B, on the bow the downside of the Load Line b of part a forms the fore d outstanding towards fore vertical line c the place ahead.Mark f among Figure 10 B and Figure 11 represents the line of centers of hull.In the prior art,, constituted above-mentioned fore d by making up complicated free form surface as Figure 10 A～shown in Figure 11.Therefore in the prior art, when making fore d, carry out the operation of different bending machining and different troubles such as assembling processing respectively to workpiece (metal sheet that hull is used) corresponding to the free form surface of complexity.In order to form these complicated free form surfaces, need the technology of high degree of skill, be difficult to realize the automation of fore processing.Its poor in processability also becomes the high reason of ship building expense.
The present invention makes in view of the above problems, and its purpose is to provide a kind of fore structure of boats and ships, according to this fore part structure, can make from the forwards outstanding fore of fore vertical line by simple curved surface combination.
The fore part structure of the present invention of making in order to achieve the above object is applicable to the boats and ships that have from fore vertical line outstanding fore towards the place ahead.Above-mentioned fore from about the hull two topsides, respectively make symmetrical a pair of tube formation wall with predetermined section form, on the bow the hull longitudinal plane of symmetry in vertical line the place ahead is towards crisscross outstanding; The shape of above-mentioned fore for narrowing down gradually towards the front end width; The front end of above-mentioned tube formation wall is mutually by the continuous smooth curve bonded assembly.
Because fore part structure of the present invention, the major part of fore is not such complex-curved of prior art, but a pair of tube formation wall that makes simple predetermined section form is outstanding and form towards fore vertical line the place ahead, can make fore by simple curved surface combination.Therefore, fore make required workpiece bending machining, assembling etc. easily.And the automation of fore processing is also easy, so, can reasonably carry out the making of fore, can lower the expense of ship building.
Among the present invention, in order more easily to make fore, above-mentioned fore also can form like this: i.e. two topsides from about the hull, make the pair of cylinders of mutual same radius constitute wall on the bow the hull longitudinal plane of symmetry place in vertical line the place ahead towards crisscross outstanding.Like this, when adopting the pair of cylinders formation wall formation fore of mutual same radius, can make the processing of workpiece simpler.At this moment, owing to can realize high efficiency process automation,, can lower the ship building expense more so can more reasonably make fore.
In addition, for the fore that obtains and the corresponding shape of hull kind is fit to, above-mentioned fore also can form like this: promptly from about the hull two topsides make the upside pair of cylinders different with the downside radius constitute wall on the bow the hull longitudinal plane of symmetry in vertical line the place ahead towards crisscross outstanding; Perhaps two topsides make that the symmetrical a pair of tube that is formed by the conicoid beyond the cylinder constitutes wall, the hull longitudinal plane of symmetry in vertical line the place ahead is given prominence to towards crisscross on the bow from about the hull.
Like this, form fore by adopting the upside tube formation wall different or adopting the tube that constitutes by conicoid to constitute wall with the mutual radius of downside, can be corresponding to the ship kind of such fine shaped of the such fertile shape ship of oil tanker or box ship etc., make the fore that shape is fit to, can easily obtain to lower the fore of wave drag.
Fig. 1 is the fore lateral plan partly of the boats and ships fore structure of expression the present invention the 1st embodiment.
Fig. 2 is the cross sectional drawing along the fore part of F 2-F2 line among Fig. 1.
Fig. 3 is the cross sectional drawing along the fore of F3-F3 line among Fig. 1 part, in the long and two-short dash line 2a presentation graphs 1 among Fig. 3 along the profile of the hull of f3-f3 line.
Fig. 4 is the cross sectional drawing along the fore part of the line AOB among Fig. 2.
Fig. 5 A is the fore cross sectional drawing partly of the boats and ships of the present invention the 2nd embodiment.
Fig. 5 B is the fore cross sectional drawing partly of the boats and ships of the present invention the 3rd embodiment.
Fig. 5 C is the fore cross sectional drawing partly of the boats and ships of the present invention the 4th embodiment.
Fig. 6 is the fore lateral plan partly of the boats and ships fore structure of expression the present invention the 5th embodiment.
Fig. 7 is the cross sectional drawing along the fore part of F7-F7 line among Fig. 6.
Fig. 8 is that the long and two-short dash line 2a among Fig. 8 represents along the profile of the hull of f8-f8 line among Fig. 6 along the cross sectional drawing of the fore part of F8-F8 line among Fig. 6.
Fig. 9 is the cross sectional drawing along the fore part of the line AOB among Fig. 7.
Figure 10 A is the fore lateral plan partly of the fore structure of expression existing ship.
Figure 10 B is that the long and two-short dash line e among Figure 10 B represents along the profile of the hull of the f10-f10 line among Figure 10 A along the cross sectional drawing of the fore part of the F10-F10 line among Figure 10 A.
Figure 11 is the cross sectional drawing along the fore part of the F11-F11 line among Figure 10 A.
Below, referring to figs. 1 through Fig. 4 the 1st embodiment of the present invention is described.
Fig. 1 represents the fore part 2 of the hull 1 of boats and ships.On the bow the Load Line L downside of part 2 forms the fore 4 outstanding towards fore vertical line H the place ahead.The shape of this fore 4 is applicable to fore structure of the present invention.Promptly, the major part of the outside of this fore 4 is to form like this: it is outstanding towards hull the place ahead to make the pair of right and left tube of given section form constitute wall 4a, 4b two topsides from about the hull 1, and the place ahead of vertical line H on the bow interconnects the front end of this formation wall 4a, 4a.
The fore 4 of this embodiment as shown in Figures 2 and 3, two topsides from about the hull 1 of holding hull longitudinal plane of symmetry α under the arm, make the pair of right and left cylinder of same radius constitute wall 4a, 4b on the bow vertical line H the place ahead, give prominence to towards crisscross at hull longitudinal plane of symmetry α place.Here said hull longitudinal plane of symmetry α is meant vertical that passes hull line of centers α '.
Specifically, in the fore 4 of this embodiment, make tube formation wall 4a, the 4b in the pair of right and left radial direction outside that constitutes a cylinder part, give prominence to towards the direction of intersecting with hull longitudinal plane of symmetry α in the place ahead of vertical line H on the bow.For example, as shown in Figure 2, larboard cylinder formation wall 4a is formed by the part of the cylinder with the 1st line of centers 7a.The 1st line of centers 7a is with the port side plane of bending 6a that extends of vertical line H is substantially parallel forward from port side hull parallel portion.
The cylinder of starboard side constitutes wall 4b, constitutes wall 4a symmetry with the port side cylinder, is formed by the part of the cylinder with the 2nd line of centers 7b.The 2nd line of centers 7b is with the starboard side plane of bending 6b that extends of vertical line H is substantially parallel forward from starboard side hull parallel portion.The radius r that these cylinders constitute wall 4a, 4b is identical mutually.It is fit mutually that these double-type cylinders constitute wall 4a, 4b, and narrow down gradually towards the place ahead width of fore vertical line the place ahead H, forms the fore 4 of hollow thus.Mark 8a, 8b among Fig. 2 represents with each line of centers 7a, 7b to be the outer side bus of the cylinder at center.Mark 9a, 9b represent with line of centers 7a, 7b to be the inboard imaginary bus of the cylinder at center.
As mentioned above, combine, constituted the major part of fore 4 outsides by 2 cylinders about intersecting at front end are constituted wall 4a, 4b.Fig. 4 represents perpendicular to the section of line of centers 7a, 7b among Fig. 2 (section of AOB along the line).As shown in Figure 4, the major part of fore 4 outsides is the outside that left and right sides cylinder constitutes wall 4a, 4b to be combined constitute.The front end that left and right sides cylinder constitutes wall 4a, 4b is connected by continuous smooth arc curve 11.
Left and right sides cylinder constitutes the rear end of wall 4a, 4b, respectively in connecting portion 6a ', 6b ' and smooth connection of plane of bending 6a, 6b of extending from the hull parallel portion towards fore vertical line H.Mark 12a, 12b among Fig. 1 represents that cylinder constitutes the extended line of cylinder bus of the top and bottom of wall 4a, 4b.
This fore 4 forms like this: from hull port side and starboard side, it is outstanding towards hull the place ahead to make the cylinder with definite shape constitute wall 4a, 4b respectively, has constituted the major part of fore 4.According to this fore structure, the major part of fore 4 is not the complicated like that free form surface of prior art, but make predefined certain section form tube formation wall 4a, 4b, can give prominence to towards fore the place ahead by the tube formation wall that makes simple shape and form.That is,, can make the fore 4 outstanding towards the place ahead from fore vertical line H by simple curved surface combination.
Therefore, the bending machining of required workpiece (metal sheet), assembling processing etc. become easy in the making of fore 4.And, owing to can make these processing have standardization,, can reasonably carry out the making of fore 4 so can realize the automation that fore is made with processing machine, can lower the fabrication cost of boats and ships.In addition, the fore 4 of this embodiment makes the pair of cylinders of same radius constitute wall 4a, 4b and gives prominence to from the hull longitudinal plane of symmetry α in two topsides of hull 1 and fore vertical line H the place ahead crossingly and form.Constitute according to this fore, oversimplify because the bending machining of workpiece and assembling are processed more, so can realize high efficiency process automation.Like this, the making of fore 4 can be more reasonably carried out, the construction cost of boats and ships can be further lowered.
Fig. 5 A～Fig. 5 C represents embodiment different among the present invention respectively.Among these embodiment, not to constitute wall with the such cylinder of the 1st embodiment to form fore 4, constitute fore 4 but have the pair of right and left tube of different curvature radius to constitute wall 4a, 4b respectively with upside and downside.Fig. 5 A～Fig. 5 C all represent with along the cooresponding section of line AOB part among Fig. 2.
Among the 2nd embodiment shown in Fig. 5 A, the pair of right and left tube that constitutes fore 4 constitutes the upper side of wall 4a, 4b, constitutes wall by the pair of right and left cylinder with same radius r1 and forms; Cylinder constitutes the lower side of wall 4a, 4b, constitutes wall by the cylinder with radius r 2 and forms, and this radius r 2 is greater than above-mentioned radius r 1.O1 among Fig. 5 A represents the center of arc of radius r 1.O2 represents the center of arc of radius r 2.
Among the 3rd embodiment shown in Fig. 5 B, the pair of right and left tube constitutes the upper side of wall 4a, 4b, constitutes wall by the cylinder with radius r 3 and forms, and this radius r 3 is greater than above-mentioned radius r 1.The lower side of tube formation wall 4a, 4b constitutes wall by the cylinder with radius r 4 and forms, and this radius r 4 is greater than above-mentioned radius r 3.O3 among Fig. 5 B represents the center of arc of radius r 3.O4 represents the center of arc of radius r 4.
Among the 4th embodiment shown in Fig. 5 C, make the O4 of center of arc of radius r 4 be positioned at the top of the O3 of center of arc of radius r 3.At this moment, the position 14a, the 14b that aim at of circular arc is positioned at than cylinder shown in Fig. 5 B and constitutes wall 4a, position that 4b is low up and down.
Like this, constitute wall 4a, 4b by the upside a pair of tube different and form fore 4 with the downside radius of curvature, according to this fore structure, carry out the setting of radius of curvature rightly corresponding to Description of Ship, can be corresponding to oil tanker such fertile shape ship and the such Description of Ships such as fine shaped of box ship, form the fore shape that is fit to more, can lower wave drag more.
Fig. 6 to Fig. 9 represents the 5th embodiment of the present invention.This embodiment is the variation of above-mentioned the 2nd to the 4th embodiment.That is, tube is constituted wall 4a, 4b make shape beyond the cylinder in order more to lower wave drag.Specifically, as shown in Figure 9, with cooresponding along the line AOB part among Fig. 2 about tube formation wall 4a, a 4a make and roughly be the section that pouring drips shape.These formation walls 4a, 4b form by the conicoid on deployable one-tenth plane.
Fig. 6 represents fore part 2, and this fore part 2 has the tube that is made of above-mentioned conicoid and constitutes wall 4a, 4b.Fig. 7 represents the section along F7-F7 line among Fig. 6 of this fore part 2.Fig. 8 represents along the section of the fore part 2 of the F8-F8 line among Fig. 6.When employing has above-mentioned quadric formation wall 4a, 4b,, fore shape more suitably can be obtained, wave drag can be lowered more than the 2nd embodiment by carrying out quadric setting rightly corresponding to Description of Ship.
In Fig. 6 to Fig. 9, put on the mark identical with part identical among above-mentioned the 1st embodiment with the 1st embodiment, its explanation is omitted.But in the 5th embodiment,, be as illustrated in fig. 7 by smooth continuously curved surface 15a, 15b connection from the hull parallel portion rear end of the plane of bending 6a, the 6b that extend of vertical line H and tube formation wall 4a, 4b forward.
Claims (4)
1. the fore part structure of boats and ships, above-mentioned boats and ships have from fore vertical line (H) fore (4) outstanding towards the place ahead in Load Line (L) below of hull (1), and above-mentioned fore is characterised in that,
Above-mentioned fore (4) from about the hull (1) two topsides, respectively make symmetrical a pair of tube formation wall (4a, 4b) with predetermined section form, on the bow the hull longitudinal plane of symmetry (α) in vertical line (H) the place ahead is towards crisscross outstanding; The shape of above-mentioned fore (4) for narrowing down gradually towards the front end width; The front end of above-mentioned tube formation wall (4a, 4b) is mutually by continuous smooth curve (11) bonded assembly.
2. the fore part structure of boats and ships as claimed in claim 1, it is characterized in that, above-mentioned fore (4) be make the pair of cylinders of mutual same radius constitute wall (4a, 4b), from about the hull (1) two topsides, on the bow the hull longitudinal plane of symmetry (α) in vertical line (H) the place ahead is towards crisscross outstanding.
3. the fore part structure of boats and ships as claimed in claim 1, it is characterized in that, above-mentioned fore (4) is to make the different pair of cylinders of the radius of curvature of upside and downside constitute wall (4a, 4b), two topsides from about the hull (1) respectively, and on the bow the hull longitudinal plane of symmetry (α) in vertical line (H) the place ahead is towards crisscross outstanding.
4. the fore part structure of boats and ships as claimed in claim 1, it is characterized in that, above-mentioned fore (4) is to make the formed pair of cylinders of the conicoid on deployable one-tenth plane constitute wall (4a, 4b), two topsides from about the hull (1) respectively, and on the bow the hull longitudinal plane of symmetry (α) in vertical line (H) the place ahead is towards crisscross outstanding.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP088432/1999 | 1999-03-30 | ||
| JP11088432A JP2000280974A (en) | 1999-03-30 | 1999-03-30 | Bow structure of ship |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1268463A true CN1268463A (en) | 2000-10-04 |
| CN1173854C CN1173854C (en) | 2004-11-03 |
Family
ID=13942642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001060090A Expired - Fee Related CN1173854C (en) | 1999-03-30 | 2000-03-29 | Fore part structure of ship |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2000280974A (en) |
| KR (1) | KR100408100B1 (en) |
| CN (1) | CN1173854C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006069515A1 (en) * | 2004-12-31 | 2006-07-06 | Guangzhou Shipyard International Company Limited | A ship hull |
| CN1319811C (en) * | 2003-11-28 | 2007-06-06 | 住友重机械工业株式会社 | Ship |
| CN101332859B (en) * | 2007-06-27 | 2010-04-14 | 江南造船(集团)有限责任公司 | Bow outline of ship |
| CN102171093A (en) * | 2008-09-19 | 2011-08-31 | 斯坦纳·雷德里公司 | Hull form intended for vessels provided with an air cavity |
| CN102317147A (en) * | 2009-02-16 | 2012-01-11 | 罗尔斯-罗伊斯马林股份公司 | Method and arrangement of bulbous bow |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5599482B1 (en) * | 2013-03-25 | 2014-10-01 | 三井造船株式会社 | Ship equipped with bubble resistance reduction device and ship resistance reduction method |
| CN103231772B (en) * | 2013-04-28 | 2015-07-29 | 大连海事大学 | A kind of arc foreship stem line structure of dredging high speed vessel shipping of green water |
| KR102122091B1 (en) * | 2013-09-27 | 2020-06-11 | 대우조선해양 주식회사 | Dumbbell Type Bulbous Bow Structure and The Ship with Thereof |
| TWI585004B (en) * | 2014-09-05 | 2017-06-01 | 台灣國際造船股份有限公司 | Bow structure of ship |
-
1999
- 1999-03-30 JP JP11088432A patent/JP2000280974A/en not_active Withdrawn
-
2000
- 2000-02-29 KR KR10-2000-0010108A patent/KR100408100B1/en not_active IP Right Cessation
- 2000-03-29 CN CNB001060090A patent/CN1173854C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319811C (en) * | 2003-11-28 | 2007-06-06 | 住友重机械工业株式会社 | Ship |
| WO2006069515A1 (en) * | 2004-12-31 | 2006-07-06 | Guangzhou Shipyard International Company Limited | A ship hull |
| CN100344506C (en) * | 2004-12-31 | 2007-10-24 | 广州广船国际股份有限公司 | Hull |
| CN101332859B (en) * | 2007-06-27 | 2010-04-14 | 江南造船(集团)有限责任公司 | Bow outline of ship |
| CN102171093A (en) * | 2008-09-19 | 2011-08-31 | 斯坦纳·雷德里公司 | Hull form intended for vessels provided with an air cavity |
| CN102171093B (en) * | 2008-09-19 | 2014-09-17 | 斯坦纳·雷德里公司 | Hull form intended for vessels provided with an air cavity |
| CN102317147A (en) * | 2009-02-16 | 2012-01-11 | 罗尔斯-罗伊斯马林股份公司 | Method and arrangement of bulbous bow |
| CN102317147B (en) * | 2009-02-16 | 2014-03-12 | 罗尔斯-罗伊斯马林股份公司 | Method and arrangement of bulbous bow |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000280974A (en) | 2000-10-10 |
| KR100408100B1 (en) | 2003-12-01 |
| CN1173854C (en) | 2004-11-03 |
| KR20010006721A (en) | 2001-01-26 |
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