CN218907528U - Reinforcing plate reinforcing structure of ship motherboard reinforcing rib through hole - Google Patents
Reinforcing plate reinforcing structure of ship motherboard reinforcing rib through hole Download PDFInfo
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- CN218907528U CN218907528U CN202223048752.4U CN202223048752U CN218907528U CN 218907528 U CN218907528 U CN 218907528U CN 202223048752 U CN202223048752 U CN 202223048752U CN 218907528 U CN218907528 U CN 218907528U
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Abstract
The utility model relates to a reinforcing plate reinforcing structure of a ship motherboard reinforcing rib through hole, which comprises a pair of mutually perpendicular motherboards, wherein a through hole is arranged on one motherboard, the reinforcing rib of the other motherboard passes through the through hole, and a reinforcing plate part covers the through hole and is fixed on the motherboard on one side; the boundary edge of the patch and the through hole is provided with a section of curve. According to the improved reinforcing plate reinforcing structure of the ship motherboard reinforcing rib through hole, an arc transition is added at the position of the reinforcing plate where fatigue cracks are most likely to occur, so that the risk of fatigue damage can be reduced.
Description
Technical Field
The utility model relates to a ship sheet metal structure, in particular to a reinforcing plate reinforcing structure of a ship motherboard reinforcing rib through hole, and belongs to the technical field of ship design.
Background
The ship body structure generally comprises a motherboard which is vertical and horizontal and is perpendicular to each other, a plurality of mutually parallel reinforcing ribs are required to be arranged on one motherboard, and the reinforcing ribs penetrate through the motherboard on the other side which is perpendicular to the motherboard, so that through holes for the reinforcing ribs to penetrate through are generally required to be arranged on the motherboard on the other side, and the shearing area of the motherboard is reduced (the area of the shearing surface is defined as the cross section parallel to the shearing force in an effective algorithm, the cross section is reduced due to the holes on the board) or the strength is weakened due to the arrangement of the through holes, so that a reinforcing plate is generally required to be arranged for reinforcing.
The common patch forms in the industry at present are as follows: fig. 4 and 5 are forms of a reinforcing plate reinforcing structure of a through hole of a reinforcing rib of a mother plate of a ship, and fatigue cracks are easily generated at the end points of the boundary edges between the reinforcing plate and the through hole in fig. 4 due to stress factors.
Disclosure of Invention
The utility model aims to provide a reinforcing structure of a reinforcing plate of a through hole of a ship motherboard reinforcing rib, which solves the problem that fatigue cracks are easy to generate at the end point of the boundary edge of the reinforcing plate and the through hole by changing the straight edge of the reinforcing plate into a circular arc shape.
The utility model adopts the following technical scheme:
a reinforcing structure of a reinforcing rib through hole of a ship motherboard comprises a pair of motherboards which are mutually vertical, wherein a through hole 101 is arranged on a first side motherboard, a reinforcing rib 102 of the other side motherboard passes through the through hole 101, and a reinforcing plate 103 partially covers the through hole 101 and is fixed on the first side motherboard; the boundary edge between the patch 103 and the through hole 101 is configured to have a curved shape.
Preferably, the section of curve is circular arc.
Further, the circular arc shape is recessed away from the uncovered portion of the through-hole 101.
Further, the portion of the shape of the curve does not directly interface with the through hole 101.
Preferably, the mother boards are crisscrossed and positioned between the side outer plates and the bulkhead of the ship.
The utility model has the beneficial effects that: the improved reinforcing plate reinforcing structure of the ship motherboard reinforcing rib through hole increases an arc transition at the position of the reinforcing plate where fatigue crack is most likely to occur, so that the risk of fatigue damage can be reduced.
Drawings
Fig. 1 is a schematic partial cross-sectional view of a side and double bottom portion of a ship hull, including a patch reinforcement structure of the present utility model for a marine motherboard reinforcement rib through hole.
Fig. 2 is an enlarged view of a portion of the marine motherboard of fig. 1 at the patch reinforcement structure of the through-hole of the reinforcing rib.
Fig. 3 is a further detailed representation of the patch panel reinforcement structure of fig. 2, wherein (a) is a combination view and (b) is an exploded view.
Fig. 4 is a detailed explanatory view of the portion 1 in fig. 2.
Fig. 5 is a comparative view showing the difference in the reinforcing structure of the reinforcing rib through hole of the mother panel of the prior art ship. Wherein fatigue is shown to be a hallmark.
Fig. 6 is a further detailed illustration of the patch panel reinforcement structure corresponding to fig. 5, wherein (a) is a combination view and (b) is an exploded view.
In the figure, 1. Reinforcing plate reinforcing structure, 101. Through holes, 102. Reinforcing ribs, 103. Reinforcing plate.
Detailed Description
The utility model will be further described with reference to the drawings and specific examples.
For a better understanding of the innovations of the present utility model, a comparative example is first presented as prior art.
Referring to fig. 5-6, patch 103 generally acts to increase the shear area, and patch 103 is added locally or watertight where stress is concentrated.
Since the reinforcing rib needs to pass through the mother board, the through hole 101 needs to be formed, the shearing area of the mother board becomes small or the strength becomes weak (the area of the shearing surface is defined as the cross-sectional area parallel to the shearing force in the effective algorithm), the reinforcing plate 103 needs to be used for reinforcing, and the cross-sectional area becomes small when the mother board is perforated.
The patch forms that are common in the industry today are shown in fig. 5-6. The non-watertight patch for the ship is a common non-watertight patch, and is easy to cause fatigue crack at the joint of the patches. Therefore, the biggest problem with the existing patch forms is that fatigue cracks are prone to occur at the overlap of the patch and motherboard, the crack locations being shown in fig. 5.
Embodiments of the present application:
referring to fig. 1-4, a reinforcing structure for reinforcing rib through holes of a ship motherboard comprises a pair of motherboards perpendicular to each other, wherein a through hole 101 is arranged on a first motherboard on one side, a reinforcing rib 102 of the motherboard on the other side passes through the through hole 101, and a reinforcing plate 103 partially covers the through hole 101 and is fixed on the motherboard on one side; the boundary edge between the patch 103 and the through hole 101 is configured to have a curved shape.
The patch boards may be disposed both in front of and behind the "first side motherboard", and the front-rear positional relationship is not specifically shown in the drawings.
In this embodiment, the segment of the curve is circular arc-shaped, see fig. 3 and 4.
In this embodiment, the circular arc shape is recessed away from the uncovered portion of the through-hole 101.
Referring to fig. 4, the portion of the shape of the section of curve does not directly interface with the through hole 101. The edge line of the boundary between the patch and the through hole 101 has a small section of straight line, and the structure can further improve the fatigue resistance. The angle of the arc R1 in the figure can be set as required.
Referring to fig. 1, the motherboard is crisscrossed between the side outer plate and the bulkhead of the ship.
In summary, according to the improved reinforcing structure for the reinforcing plate of the through hole of the ship motherboard reinforcing rib, an arc transition is added at the position of the reinforcing plate where fatigue cracks are most likely to occur, so that the risk of fatigue damage can be reduced.
The foregoing is a preferred embodiment of the present utility model, and various changes and modifications may be made therein by those skilled in the art without departing from the general inventive concept, and such changes and modifications should be considered as falling within the scope of the claimed utility model.
Claims (5)
1. The utility model provides a reinforcing structure of reinforcing rib through hole's of boats and ships mother board, includes a pair of mother board of mutually perpendicular, wherein is equipped with through hole (101) on the first side mother board, and the reinforcing rib (102) of opposite side mother board pass through hole (101), its characterized in that:
a patch (103) partially covering the through hole (101) and fixed on the first side motherboard; the boundary edge of the patch (103) and the through hole (101) is provided with a curve.
2. The reinforcing structure for a reinforcing rib through hole of a marine motherboard of claim 1, wherein: the section of curve is arc-shaped.
3. The reinforcing structure for the reinforcing rib through hole of the marine motherboard of claim 2, wherein: the circular arc shape is recessed toward a portion which is far from the through hole (101) and is not covered.
4. The reinforcing structure for the reinforcing rib through hole of the marine motherboard of claim 2, wherein: the part of the shape of the section of curve is not directly bordered by the through hole (101).
5. The reinforcing structure for a reinforcing rib through hole of a marine motherboard of claim 1, wherein: the mother boards are crisscrossed and positioned between the side outer plates and the bulkhead of the ship.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223048752.4U CN218907528U (en) | 2022-11-16 | 2022-11-16 | Reinforcing plate reinforcing structure of ship motherboard reinforcing rib through hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223048752.4U CN218907528U (en) | 2022-11-16 | 2022-11-16 | Reinforcing plate reinforcing structure of ship motherboard reinforcing rib through hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218907528U true CN218907528U (en) | 2023-04-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223048752.4U Active CN218907528U (en) | 2022-11-16 | 2022-11-16 | Reinforcing plate reinforcing structure of ship motherboard reinforcing rib through hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218907528U (en) |
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2022
- 2022-11-16 CN CN202223048752.4U patent/CN218907528U/en active Active
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