CN109018191A - A kind of novel freighter stem - Google Patents
A kind of novel freighter stem Download PDFInfo
- Publication number
- CN109018191A CN109018191A CN201810831793.XA CN201810831793A CN109018191A CN 109018191 A CN109018191 A CN 109018191A CN 201810831793 A CN201810831793 A CN 201810831793A CN 109018191 A CN109018191 A CN 109018191A
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- CN
- China
- Prior art keywords
- plate
- stem
- pressure
- bearing column
- freighter
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- 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
- B63B3/00—Hulls characterised by their structure or component parts
- B63B3/14—Hull parts
- B63B3/46—Stems
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
The invention discloses a kind of novel freighter stems, belong to freighter manufacturing field.Including stem plate, fore castle deck, upper deck, middle line keelson, plate floor and lower decks, stem plate in middle line keelson, side stringer and plate floor are installed, the top of stem plate connect with fore castle deck, lower part is connect with lower decks, middle line keelson run through stem plate interior plate, middle line keelson is transversely provided with several plate floors, stem plate use proclined structure；It is characterized by: the front end of stem plate is provided with pressure-bearing column, pressure-bearing column fits with stem plate, and the binding face of pressure-bearing column and stem plate is provided with recess, and recess matches with the streamlined parabola of stem plate or arc structure；The leading flank of pressure-bearing column uses proclined structure, pressure-bearing column and the united overall structure of stem plate streamlined parabola or arc structure in the vertical direction；Hydrodynamic resistance is big when driving for freighter in the prior art for solution, easily-deformable technical problem when stem is by longitudinal impact.
Description
Technical field
The present invention relates to freighter manufacturing field, especially a kind of novel freighter stem.
Background technique
Freighter stem is one of component and the most important component of hull of foremost part of ship front end, freighter fore body it is outer
Plate, deck, platform and topside stringers be all to terminate at stem.Stem is a primary structure member, to bear various outer masterpieces
With especially the fierce of hull and other object collides.They can enhance hull bear wave impact force and water pressure, moreover it is possible to hold
By the vibration of longitudinal impact.So stem must have enough stiffness and strength, to bear various external impacts；For
For freighter, in order to reduce the wave making resistance of ship fore body, usual all several waterlines of designed water line and designed water line attachment
The design of bow end shape very sharp thin, arc radius generally all very little, that is to say, that stem design attachment section its
Arc radius very little, this too small arc radius is difficult to process with steel plate, it cannot be guaranteed that the smoothness of appearance, and process
The freighter stem come cannot bear the vibration of biggish wave impact force, water pressure and longitudinal impact, it is difficult to carry out；Entity cast steel
Ship column it is at high cost, energy consumption is big, and the feature of environmental protection is poor, weight weight, is not suitable for for the freighter for having Weight control.Therefore, how to drop
The difficulty of processing and cost of low freighter stem, and improve freighter stem and bear biggish wave impact force, water pressure and longitudinal direction
The vibration performance of collision, becomes always the problem of shipbuilding industry is paid special attention to.
Summary of the invention
Goal of the invention of the invention is, in view of the above-mentioned problems, providing a kind of novel freighter stem, solves goods in the prior art
Hydrodynamic resistance is big when foot, easily-deformable technical problem when stem is by longitudinal impact.
In order to achieve the above objectives, the technical scheme adopted by the invention is that: a kind of novel freighter stem, it is characterised in that:
Including stem plate, fore castle deck, upper deck, middle line keelson, plate floor and lower decks, be equipped in the stem plate in interior dragon
The top of bone, side stringer and plate floor, the stem plate is connect with fore castle deck, and lower part is connect with lower decks, described
Middle line keelson runs through stem plate interior plate, and middle line keelson is transversely provided with several plate floors, and the stem plate uses proclined
Structure, the stem plate of the proclined structure streamlined parabola or arc structure in the vertical direction；The proclined
The stem plate cross section direction of structure R shape of different sizes streamlined from top to bottom, the R shape is outside
Projective structure；It is characterized by: the front end of the stem plate is provided with pressure-bearing column, the pressure-bearing column fits with stem plate, holds
The binding face of compression leg and stem plate is provided with recess, the recess and the streamlined parabola of stem plate or arc structure kissing
It closes；The leading flank of the pressure-bearing column uses proclined structure, the pressure-bearing column and the united overall structure of stem plate perpendicular
Histogram upward streamlined parabola or arc structure.
Further, the stem plate of the proclined structure is 3000-4000mm in the radius of vertical direction plate shape, described
Pressure-bearing column is 2500-3500mm in the radius of vertical direction plate shape.
Further, R value of the stem plate of the proclined structure in cross section direction is successively from top to bottom: with forecastle
The arc-shaped radius of deck junction is 100-600mm, and the arc-shaped radius of pressure-bearing column of corresponding position is 50-300mm；At waist
Arc-shaped radius be 300-1000mm, the arc-shaped radius of pressure-bearing column of corresponding position is 150-500mm；Connect with forecastle lower decks
The arc-shaped radius for meeting place is 100-500mm, and the arc-shaped radius of pressure-bearing column of corresponding position is 50-250mm.
Further, the shrinkage pool being uniformly distributed and immediately ahead of central axis and freighter is set in the recess of the pressure-bearing column,
The shrinkage pool does not penetrate the pressure-bearing column leading flank.
Further, the shrinkage pool is regular hexagon cylindrical hole, and the shrinkage pool is distributed in honeycomb.
Further, reinforcing rib is additionally provided between the stem plate and plate floor.
Due to the adoption of the above technical scheme, the invention has the following advantages:
1. the vibration that pressure-bearing column of the invention generates when caning absorb stem by longitudinal impact, thus to the stem ontology
It is protected, while mitigating the shaking of hull；Pressure-bearing column side structure radius of the invention is smaller, and fusiform structure is more excellent
Change, stem by resistance it is smaller, save hull energy consumption.
2. the shrinkage pool being uniformly distributed and immediately ahead of central axis and freighter is arranged in the recess of pressure-bearing column of the present invention, shrinkage pool is in
Honeycomb distribution, honeycomb structure is the basic structure of honeycomb, be by regular hexagon list room one by one, room mouth entirely downward or direction
On one side, back-to-back to be symmetrically arranged a kind of structure being composed, this structure has outstanding geometric mechanics, can further mention
The bearing capacity of the high stem.
3. freighter stem structure of the invention, processing are more easier, while promoting stem structure, processing cost is also into one
Point reduces.
Detailed description of the invention
Fig. 1 is front view structure simplified schematic diagram of the invention.
Fig. 2 is the A of Fig. 1 to structural schematic diagram.
Fig. 3 is vertical structure cross-sectional view of the present invention.
In attached drawing, 1- stem plate, 2- fore castle deck, 3- upper deck, 4- side stringer, 5- middle line keelson, 6- plate floor, 7-
Lower decks, 8- reinforcing rib, 9- pressure-bearing column, 91- cylindrical hole.
Specific embodiment
It is further illustrated below in conjunction with specific implementation of the attached drawing to invention.
As shown in Fig. 1 to Fig. 3, freighter stem of the invention, including stem plate I, fore castle deck 2, upper deck 3, topside are vertical
Purlin 4, middle line keelson 5, plate floor 6, lower decks 7, reinforcing rib 8 and pressure-bearing column 9 are equipped with middle line keelson in the stem plate 1
3, the top of side stringer 4 and horizontal bracket 5, the stem plate 1 is connect with forecastle upper deck 2, lower part and forecastle lower decks 7
Connection, stem plate 1 use proclined structure, the stem plate 1 of proclined structure R shape streamlined in vertical direction
Shape, the 1 cross section direction of stem plate of proclined structure R shape of different sizes streamlined from top to bottom are described
R shape be to outwardly protrude structure, reinforcing rib 8 is additionally provided between the stem plate stated and plate floor 6；Before the stem plate 1
End is provided with pressure-bearing column 9, and the pressure-bearing column 9 fits with stem plate 1, and the binding face of pressure-bearing column 9 and stem plate 1 is provided with recessed
It falls into, the recess matches with the streamlined parabola of stem plate 1 or arc structure；Before the leading flank of the pressure-bearing column 9 uses
The type that inclines structure, the pressure-bearing column 9 and the united overall structure of the stem plate 1 in the vertical direction streamlined parabola or
Arc structure；The shrinkage pool being uniformly distributed and immediately ahead of central axis and freighter, the shrinkage pool are set in the recess of the pressure-bearing column 9
9 leading flank of pressure-bearing column is not penetrated；The shrinkage pool is regular hexagon cylindrical hole 91, and the cylindrical hole 91 is in honeycomb
Distribution.
The stem plate 1 of the proclined structure is R1=3500mm in the R value of vertical direction plate shape, and pressure-bearing column 9 is vertical
The radius of direction plate shape is 2500mm, the stem plate 1 of the proclined structure cross section direction R value from top to bottom successively
Be: the arc-shaped radius with 2 junction of fore castle deck is 500mm, and the arc-shaped radius of pressure-bearing column 9 of corresponding position is 250mm；Waist
Arc-shaped radius at portion is 1000mm, and the arc-shaped radius of pressure-bearing column 9 of corresponding position is 500mm；It is connect with forecastle lower decks 7
The arc-shaped radius at place is 300mm, and the arc-shaped radius of pressure-bearing column 9 of corresponding position is 150mm.
Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim, it is all the present invention suggested by technical spirit under completed same changes or modifications change, should all belong to
In the covered the scope of the patents of the present invention.
Claims (6)
1. a kind of novel freighter stem, it is characterised in that: including stem plate, fore castle deck, upper deck, middle line keelson, plate floor
And lower decks, middle line keelson, side stringer and plate floor, the top of the stem plate and bow are installed in the stem plate
The connection of building deck, lower part are connect with lower decks, and the middle line keelson runs through stem plate interior plate, and middle line keelson is transversely provided with
Several plate floors, the stem plate use proclined structure, and the stem plate of the proclined structure is in stream in the vertical direction
The parabola or arc structure of line style；Streamlined from top to bottom big in the stem plate cross section direction of the proclined structure
Small different R shape, the R shape is to outwardly protrude structure；It is characterized by: the front end of the stem plate is provided with and holds
Compression leg, the pressure-bearing column fit with stem plate, and the binding face of pressure-bearing column and stem plate is provided with recess, the recess and stem
The streamlined parabola of plate or arc structure match；The leading flank of the pressure-bearing column uses proclined structure, the pressure-bearing column
With the united overall structure of stem plate streamlined parabola or arc structure in the vertical direction.
2. a kind of novel freighter stem according to claim 1, it is characterised in that: the stem plate of the proclined structure exists
The radius of vertical direction plate shape is 3000-4000mm, and the pressure-bearing column is 2500-3500mm in the radius of vertical direction plate shape.
3. a kind of novel freighter stem according to claim 1, it is characterised in that: the stem plate of the proclined structure exists
The R value in cross section direction is successively from top to bottom: the arc-shaped radius with fore castle deck junction is 100-600mm, corresponding position
The arc-shaped radius of pressure-bearing column set is 50-300mm；Arc-shaped radius at waist is 300-1000mm, the pressure-bearing of corresponding position
The arc-shaped radius of column is 150-500mm；Arc-shaped radius with forecastle lower decks junction is 100-500mm, corresponding position
The arc-shaped radius of pressure-bearing column is 50-250mm.
4. a kind of novel freighter stem according to claim 1, it is characterised in that: setting exists in the recess of the pressure-bearing column
It is uniformly distributed and the shrinkage pool immediately ahead of central axis and freighter, the shrinkage pool does not penetrate the pressure-bearing column leading flank.
5. a kind of novel freighter stem according to claim 4, it is characterised in that: the shrinkage pool is regular hexagon cylinder
Hole, the shrinkage pool are distributed in honeycomb.
6. a kind of novel freighter stem according to claim 1, it is characterised in that: between the stem plate and plate floor
It is additionally provided with reinforcing rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810831793.XA CN109018191A (en) | 2018-07-26 | 2018-07-26 | A kind of novel freighter stem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810831793.XA CN109018191A (en) | 2018-07-26 | 2018-07-26 | A kind of novel freighter stem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109018191A true CN109018191A (en) | 2018-12-18 |
Family
ID=64646409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810831793.XA Pending CN109018191A (en) | 2018-07-26 | 2018-07-26 | A kind of novel freighter stem |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109018191A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114179998A (en) * | 2021-11-08 | 2022-03-15 | 上海江南长兴造船有限责任公司 | Manufacturing method of stem on large container ship and integral stem segment |
| CN114212185A (en) * | 2021-12-15 | 2022-03-22 | 中船广西船舶及海洋工程有限公司 | Thick steel plate type ship stem |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130078003A (en) * | 2011-12-30 | 2013-07-10 | 대우조선해양 주식회사 | Structure for fore body of vessels |
| CN104029787A (en) * | 2014-06-16 | 2014-09-10 | 桂平市大众船舶修造厂 | Stem of cargo ship |
| CN204056196U (en) * | 2014-06-16 | 2014-12-31 | 桂平市大众船舶修造厂 | Freighter stem |
| CN207106788U (en) * | 2017-08-16 | 2018-03-16 | 桂平市大众船舶修造厂（普通合伙） | A kind of freighter depressurizes stem |
| CN207211500U (en) * | 2017-08-01 | 2018-04-10 | 张佳琦 | A kind of environmentally friendly combined wall board for building |
-
2018
- 2018-07-26 CN CN201810831793.XA patent/CN109018191A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130078003A (en) * | 2011-12-30 | 2013-07-10 | 대우조선해양 주식회사 | Structure for fore body of vessels |
| CN104029787A (en) * | 2014-06-16 | 2014-09-10 | 桂平市大众船舶修造厂 | Stem of cargo ship |
| CN204056196U (en) * | 2014-06-16 | 2014-12-31 | 桂平市大众船舶修造厂 | Freighter stem |
| CN207211500U (en) * | 2017-08-01 | 2018-04-10 | 张佳琦 | A kind of environmentally friendly combined wall board for building |
| CN207106788U (en) * | 2017-08-16 | 2018-03-16 | 桂平市大众船舶修造厂（普通合伙） | A kind of freighter depressurizes stem |
Non-Patent Citations (1)
| Title |
|---|
| 孟忠文等: "《飞机结构修理》", 31 January 2017 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114179998A (en) * | 2021-11-08 | 2022-03-15 | 上海江南长兴造船有限责任公司 | Manufacturing method of stem on large container ship and integral stem segment |
| CN114179998B (en) * | 2021-11-08 | 2023-11-17 | 上海江南长兴造船有限责任公司 | Manufacturing method of stem on large container ship and integral stem segmentation |
| CN114212185A (en) * | 2021-12-15 | 2022-03-22 | 中船广西船舶及海洋工程有限公司 | Thick steel plate type ship stem |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181218 |