CN112339905A - Toe end of longitudinal hatch coaming of bulk cargo ship - Google Patents
Toe end of longitudinal hatch coaming of bulk cargo ship Download PDFInfo
- Publication number
- CN112339905A CN112339905A CN202011346207.6A CN202011346207A CN112339905A CN 112339905 A CN112339905 A CN 112339905A CN 202011346207 A CN202011346207 A CN 202011346207A CN 112339905 A CN112339905 A CN 112339905A
- Authority
- CN
- China
- Prior art keywords
- toe end
- plate
- rectangular plate
- hatch coaming
- edge
- 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.)
- Pending
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims 2
- 238000010276 construction Methods 0.000 abstract description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- 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
- B63B3/48—Decks
- B63B3/54—Hatch openings
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Ship Loading And Unloading (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a longitudinal hatch coaming toe end of a bulk cargo ship, which is arranged between two adjacent longitudinal hatch coaming plates; two longitudinal hatch coaming plates are fixedly connected with a toe end plate respectively, and the two toe end plates are connected through a rectangular plate; the distance from the edge line of the upper end of the rectangular plate to the deck is less than 150 mm; the lower end of the toe end plate is fixedly connected to the deck, the upper end edge line of the toe end plate comprises a linear edge and an arc edge, the linear edge is obliquely distributed downwards, and the lower end part of the arc edge is connected with the upper end part of the linear edge; the lower end part of the straight line edge of the toe end plate positioned on the left side of the rectangular plate is connected with the left end part of the upper end edge line of the rectangular plate; the lower end portion of the straight edge of the toe end plate located on the right side of the rectangular plate is connected to the right end portion of the upper end edge line of the rectangular plate. The toe end plate structure is continuous, and the structure is prevented from generating sudden change to cause structural fatigue; the structure safety is satisfied, the structure is compact, and the design and construction workload can be reduced.
Description
Technical Field
The invention relates to the technical field of ships, in particular to a toe-enclosed end of a longitudinal hatch of a bulk cargo ship.
Background
The cargo hold area of a bulk carrier is usually provided with a plurality of independent hatcheries. The toe end of the longitudinal plate of the hatch coaming is easy to generate fatigue cracks in the whole life cycle of the ship due to abrupt change of the structure, thereby affecting the safety of the ship.
In order to meet the structural safety requirements of the longitudinal toe end, the conventional solutions are: a complex toe end form is designed, and a deck where the thick toe end is located is inserted, so that the effect of optimizing structural transition is achieved, and the fatigue performance of the toe end is improved. The appearance and the plate thickness of the toe end are adjusted through repeated calculation in the whole process, so that the toe end finally meets the fatigue requirement.
Conventional solutions are computationally expensive because of the large number of attempts that need to be made at design time. In the ship building process, as the main deck needs to be additionally thickened, a lot of construction amount is increased.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a toe end of a longitudinal hatch coaming of a bulk cargo ship.
The invention solves the technical problems through the following technical scheme:
a bulk carrier longitudinal hatch coaming toe end is arranged between two adjacent hatch coaming longitudinal plates; two longitudinal hatch coaming plates are fixedly connected with a toe end plate respectively, and the two toe end plates are connected through a rectangular plate; the rectangular plate and the two toe end plates are positioned on the same plane; the lower end of the rectangular plate is fixedly connected to the deck, and the edge line of the upper end of the rectangular plate is parallel to the deck; the distance from the edge line of the upper end of the rectangular plate to the deck is less than 150 mm; the lower end of the toe end plate is fixedly connected to the deck, the upper end edge line of the toe end plate comprises a linear edge and an arc edge, the linear edge is obliquely distributed downwards, and the lower end part of the arc edge is connected with the upper end part of the linear edge; the lower end part of the straight line edge of the toe end plate positioned on the left side of the rectangular plate is connected with the left end part of the upper end edge line of the rectangular plate; the lower end portion of the straight edge of the toe end plate located on the right side of the rectangular plate is connected to the right end portion of the upper end edge line of the rectangular plate.
The rectangular plate is flat iron.
The thickness of the rectangular plate is the same as the thickness of the toe end plate.
The rectangular plate and the two toe end plates are integrally formed.
The rectangular plate is perpendicular to the deck, and both toe end plates are perpendicular to the deck.
The toe end plate and the deck are in welded connection; the toe end plate and the hatch coaming longitudinal plate are connected in a welding way; the rectangular plate and the deck are connected in a welding mode.
The top of the toe end plate is no higher than the top of the longitudinal panel of the hatch coaming.
The top of the toe end plate is flush with the top of the longitudinal panel of the hatch.
The side of the toe end plate is fixedly provided with a reinforcing rib.
The reinforcing ribs are not connected with the longitudinal panel of the hatch coaming.
The invention has the beneficial effects that: the invention connects two independent toe end plates by flat iron with the diameter less than 150mm, so that the structure is continuous, and the structure fatigue caused by sudden change of the structure is avoided. The toe end of the longitudinal hatch coaming of the bulk cargo ship meets the requirement of structural safety, has a compact structure, and can reduce the workload of design and construction.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.
FIG. 2 is a finite element analysis diagram of the preferred embodiment of the present invention.
Detailed Description
The present invention will be more clearly and completely described in the following description of preferred embodiments, taken in conjunction with the accompanying drawings.
As shown in fig. 1, a longitudinal hatch coaming toe end of a bulk cargo ship is provided between two adjacent longitudinal hatch coaming panels 10; two longitudinal hatch coaming plates 10 are respectively fixedly connected with a toe end plate 20, and the two toe end plates 20 are connected through a rectangular plate 30.
The rectangular plate 30 and the two toe end plates 20 lie in the same plane.
The lower end of the rectangular plate 30 is fixed to the deck 40, and the upper end edge line of the rectangular plate 30 is parallel to the deck 40. The distance from the upper end edge line of rectangular plate 30 to deck 40 is less than 150 mm.
The lower end of the toe end plate 20 is fixedly connected to the deck 40, the upper end edge line of the toe end plate 20 comprises a linear edge 21 and an arc-shaped edge 22, the linear edge 21 is obliquely distributed downwards, and the lower end part of the arc-shaped edge 22 is connected with the upper end part of the linear edge 21.
The lower end portion of the straight edge of the toe end plate located on the left side of the rectangular plate is connected to the left end portion of the upper end edge line of the rectangular plate.
The lower end portion of the straight edge of the toe end plate located on the right side of the rectangular plate is connected to the right end portion of the upper end edge line of the rectangular plate.
In this embodiment, the rectangular plate 30 is a flat iron.
The thickness of the rectangular plate 30 is the same as the thickness of the toe end plate 20.
The rectangular plate 30 and the two toe end plates 20 are integrally formed.
The rectangular plate 30 is perpendicular to the deck 40 and both toe end plates 20 are perpendicular to the deck.
The toe end plate 20 and the deck 40 are welded. The toe end plate 20 and the hatch coaming longitudinal plate 10 are welded. Rectangular plate 30 and deck 40 are welded connections.
The top of the toe end plate 20 is no higher than the top of the longitudinal panel 10 of the hatch coaming. In this embodiment, the top of the toe end panel 20 is flush with the top of the longitudinal panel 10 of the hatch frame.
The side of the toe end plate 20 is fixedly provided with a reinforcing rib 11. The reinforcing ribs 11 are not connected to the hatch coaming longitudinal panel 10.
Fig. 2 is a finite element analysis diagram of the toe end of the longitudinal hatch coaming of a bulk carrier. It can be seen from the figure that the stress is small, meeting the safety requirements of the structure.
The invention connects two independent toe end plates by flat iron with the diameter less than 150mm, so that the structure is continuous, and the structure fatigue caused by sudden change of the structure is avoided.
The toe end of the longitudinal hatch coaming of the bulk cargo ship meets the requirement of structural safety, has a compact structure, and can reduce the workload of design and construction.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (10)
1. A bulk carrier longitudinal hatch coaming toe end is arranged between two adjacent hatch coaming longitudinal plates; the hatch is characterized in that two longitudinal hatch coaming plates are fixedly connected with a toe end plate respectively, and the two toe end plates are connected through a rectangular plate; the rectangular plate and the two toe end plates are positioned on the same plane; the lower end of the rectangular plate is fixedly connected to the deck, and the edge line of the upper end of the rectangular plate is parallel to the deck; the distance from the edge line of the upper end of the rectangular plate to the deck is less than 150 mm; the lower end of the toe end plate is fixedly connected to the deck, the upper end edge line of the toe end plate comprises a linear edge and an arc edge, the linear edge is obliquely distributed downwards, and the lower end part of the arc edge is connected with the upper end part of the linear edge; the lower end part of the straight line edge of the toe end plate positioned on the left side of the rectangular plate is connected with the left end part of the upper end edge line of the rectangular plate; the lower end portion of the straight edge of the toe end plate located on the right side of the rectangular plate is connected to the right end portion of the upper end edge line of the rectangular plate.
2. The bulk carrier longitudinal hatch coaming toe end of claim 1, wherein the rectangular plate is a flat iron.
3. The bulk carrier longitudinal hatch coaming toe end of claim 1 wherein the rectangular plate has the same thickness as the toe end plate.
4. The bulk carrier longitudinal hatch coaming toe end of claim 1, wherein the rectangular plate and the two toe end plates are integrally formed.
5. The bulk carrier longitudinal hatch coaming toe end of claim 1, wherein the rectangular plate is perpendicular to the deck and both toe end plates are perpendicular to the deck.
6. The bulk carrier longitudinal hatch coaming toe end of claim 1, wherein the toe end plate and the deck are welded; the toe end plate and the hatch coaming longitudinal plate are connected in a welding way; the rectangular plate and the deck are connected in a welding mode.
7. The bulk carrier longitudinal hatch coaming toe end of claim 1, wherein the toe end plate has a top portion no higher than a top portion of the longitudinal panel of the hatch coaming.
8. The bulk carrier longitudinal hatch coaming toe end of claim 7, wherein the top of the toe end plate is flush with the top of the longitudinal hatch coaming panel.
9. The bulk carrier longitudinal hatch coaming toe end as in claim 1 wherein the toe end plate is fixedly provided with a reinforcement rib on a side thereof.
10. The bulk carrier longitudinal hatch coaming toe end of claim 9, wherein the reinforcement rib is unattached to the longitudinal panel of the hatch coaming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011346207.6A CN112339905A (en) | 2020-11-26 | 2020-11-26 | Toe end of longitudinal hatch coaming of bulk cargo ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011346207.6A CN112339905A (en) | 2020-11-26 | 2020-11-26 | Toe end of longitudinal hatch coaming of bulk cargo ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112339905A true CN112339905A (en) | 2021-02-09 |
Family
ID=74364679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011346207.6A Pending CN112339905A (en) | 2020-11-26 | 2020-11-26 | Toe end of longitudinal hatch coaming of bulk cargo ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112339905A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104044706A (en) * | 2014-05-06 | 2014-09-17 | 中国海洋石油总公司 | Grouting and Welding Combined Connection Joint Applied to a Deepwater Floating Type Platform and an Offshore Installation Method Thereof |
| CN204642058U (en) * | 2015-03-26 | 2015-09-16 | 上海佳豪船舶工程设计股份有限公司 | Be not with bottom side tank Double-hull Bulk Carrier hull framework structure |
| CN206466123U (en) * | 2017-01-22 | 2017-09-05 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | A kind of stiffeners of the longitudinal hatch coaming end of ship |
| CN108100155A (en) * | 2017-11-22 | 2018-06-01 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Hatch coaming end bracket and ship |
| CN208344487U (en) * | 2018-05-21 | 2019-01-08 | 江苏扬子鑫福造船有限公司 | A kind of anti-tripping bracket reinforcement hatch coaming |
| CN213705701U (en) * | 2020-11-26 | 2021-07-16 | 上海斯达瑞船舶海洋工程服务有限公司 | Toe end of longitudinal hatch coaming of bulk cargo ship |
-
2020
- 2020-11-26 CN CN202011346207.6A patent/CN112339905A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104044706A (en) * | 2014-05-06 | 2014-09-17 | 中国海洋石油总公司 | Grouting and Welding Combined Connection Joint Applied to a Deepwater Floating Type Platform and an Offshore Installation Method Thereof |
| CN204642058U (en) * | 2015-03-26 | 2015-09-16 | 上海佳豪船舶工程设计股份有限公司 | Be not with bottom side tank Double-hull Bulk Carrier hull framework structure |
| CN206466123U (en) * | 2017-01-22 | 2017-09-05 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | A kind of stiffeners of the longitudinal hatch coaming end of ship |
| CN108100155A (en) * | 2017-11-22 | 2018-06-01 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Hatch coaming end bracket and ship |
| CN208344487U (en) * | 2018-05-21 | 2019-01-08 | 江苏扬子鑫福造船有限公司 | A kind of anti-tripping bracket reinforcement hatch coaming |
| CN213705701U (en) * | 2020-11-26 | 2021-07-16 | 上海斯达瑞船舶海洋工程服务有限公司 | Toe end of longitudinal hatch coaming of bulk cargo ship |
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