CN114212186B - Arc-shaped reinforced pressure bulkhead structure resisting bending of underwater explosion impact - Google Patents
Arc-shaped reinforced pressure bulkhead structure resisting bending of underwater explosion impact Download PDFInfo
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- CN114212186B CN114212186B CN202111508342.0A CN202111508342A CN114212186B CN 114212186 B CN114212186 B CN 114212186B CN 202111508342 A CN202111508342 A CN 202111508342A CN 114212186 B CN114212186 B CN 114212186B
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- arc
- pressure bulkhead
- strengthening rib
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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
- B63B3/56—Bulkheads; Bulkhead reinforcements
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- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
A curved arc-shaped reinforced pressure bulkhead structure resisting underwater explosion impact belongs to the technical field of ship structure protection. The invention solves the problem of poor protection force of the inner plate of the existing liquid tank. The protection structure comprises a plurality of arc-shaped supporting plates which are horizontally arranged and butted side by side from top to bottom, and the first reinforcing ribs and the protection structure as well as the second reinforcing ribs and the inner panel are fixedly connected without gaps. The utility model provides a strengthen pressure bulkhead structure with arc backup pad can resist the shock wave and the bubble load that detonation process and fragment penetration produced more high-efficiently, in addition, strengthen pressure bulkhead structure itself and just have two-layer structure, and in the face of the fragment of higher quality, higher speed, have been equivalent to two-layer bulkhead separation, fragment energy is absorbed by arc backup pad, interior panel in proper order, has strengthened the water proofness of liquid tank.
Description
Technical Field
The invention relates to an arc-shaped reinforced pressure bulkhead structure resisting bending of underwater explosion impact, and belongs to the technical field of ship structure protection.
Background
When a ship executes a task on the sea, the ship is inevitably attacked by enemy underwater anti-ship weapons, mainly torpedoes, mines and the like. The underwater part of the ship breaks the cabin and enters water, which causes great threat to the warship fighting capacity and the vitality. The protection structure of 'empty cabin-liquid cabin-empty cabin' is the main defense form of large ships against underwater contact explosion. The expansion cabin formed by the side outer plate and the liquid cabin outer plate is an empty cabin, provides a deformation space generated in the detonation process for the side outer plate, and releases the pressure of detonation products; the liquid tank outer plate and the liquid tank inner plate form a liquid tank, and absorption liquid in the liquid tank can absorb shock waves generated by explosion and dissipate kinetic energy of detonation products and high-speed fragments; the watertight cabin formed by the inner plate of the liquid cabin and the defense longitudinal wall is also an empty cabin, so that the impact pressure is continuously relieved, and the damage degree of the defense longitudinal wall is reduced.
The liquid tank is arranged on the side of the ship board, so that the requirement of partial loading can be met, and the liquid tank can resist shock waves, bubbles and high-speed fragments of underwater weapons contacting underwater explosion. The shock wave generated in the shipboard contact explosion process is transmitted and acts on the liquid tank structure, and the outer plate of the liquid tank mainly generates dynamic response bending towards the inside of the ship body to drive the water medium in the tank to move so as to increase the inertia force for the outer plate of the liquid tank. The shock wave acts on the inner plate of the liquid tank, the inner plate reflects sparse waves, the liquid is absorbed to form negative pressure in the process of the propagation of the sparse waves to form cavitation bubbles, and the cavitation bubbles collapse to act on the inner plate of the liquid tank again to form secondary shock; the fragments penetrate into the liquid tank to cause a water hammer effect, and when the fragments impact the outer plate of the liquid tank, shock waves are generated and act on the inner plate of the liquid tank through a water medium; meanwhile, the high-speed movement of the high-speed fragments in the absorption liquid can cause the cavitation of water and the phenomenon of sailing with cavitation bubbles; when the high-speed fragment impacts the inner plate of the liquid tank, the cavitation bubbles are collapsed to form jet flow which acts on the inner plate of the liquid tank to form secondary impact. The process can cause large plastic deformation to the inner plate of the liquid tank, and even cause damage such as ram perforation, petal tearing and the like. The typical liquid tank inner plate is usually a flexible large-deformation plate, the thickness of the flexible large-deformation plate is large, and the flexible large-deformation plate occupies large weight in the tank, so that the liquid tank inner plate needs to be protected to reduce structural deformation or reduce the weight of the liquid tank inner plate on the premise of a considerable protection effect, and the vitality and the fighting capacity of a ship are further improved.
Disclosure of Invention
The invention aims to solve the problems and further provides an arc-shaped reinforced pressure bulkhead structure resisting bending caused by water explosion impact.
In order to solve the problems, the invention provides the following scheme.
The utility model provides a withstand voltage bulkhead structure is strengthened to crooked arc of explosion impact under water-resistant, it includes the inner panel, sets firmly the protective structure who is close to protection liquid tank one side on the inner panel, is located a plurality of first strengthening ribs of protective structure side and is located a plurality of second strengthening ribs of inner panel side, wherein protective structure includes that the level is arranged and by a plurality of arc backup pads of top to bottom butt joint side by side, is zero clearance rigid coupling between first strengthening rib and the protective structure and between second strengthening rib and the inner panel.
Furthermore, the first reinforcing rib comprises wing plates and webs which are fixedly connected into a whole, wherein the wing plates are in a strip shape, one side surface of the webs fixedly connected with the wing plates is a plane, and one side surface of the webs fixedly connected with the protective structure is a plurality of inner arc surfaces matched with the outer arc surfaces of the arc supporting plates.
Further, the second reinforcing rib is a T-shaped reinforcing rib.
Further, the wings of the T-bar stiffener are arranged away from the inner panel.
Furthermore, a plurality of first reinforcing ribs and a plurality of second reinforcing ribs are arranged in a staggered mode along the ship length direction.
Further, the upper end and the lower end of each arc-shaped supporting plate are welded with the inner panel.
Further, every two adjacent arc-shaped support plates are welded.
Furthermore, the fastening mode between the wing plate and the web plate and the fastening mode between the web plate and the protective structure are welding.
Compared with the prior art, the invention has the following effects:
the irregular geometric shape fragments are asymmetrical and wet surfaces after contacting with the liquid tank water. The water in the liquid tank makes the fragments generate deflection and rotation motion to absorb and dissipate the kinetic energy. The utility model provides a strengthen pressure bulkhead structure with arc backup pad can resist the shock wave and the bubble load that detonation process and fragment penetration produced more high-efficiently, in addition, strengthen pressure bulkhead structure itself and just have two-layer structure, and in the face of the fragment of higher quality, higher speed, have been equivalent to two-layer bulkhead separation, fragment energy is absorbed by arc backup pad, interior panel in proper order, has strengthened the water proofness of liquid tank.
The arc supports strengthens withstand voltage bulkhead structure and can strengthen the structural strength of whole bulkhead under the same condition of control quality, makes protection liquid tank bear bigger impact load, reduces the deformation volume of liquid tank inner panel to promote the protective capacities in protection liquid tank.
Drawings
FIG. 1 is a schematic view of a section of a pressure bulkhead structure using the arc reinforcement of the present application;
FIG. 2 is a schematic perspective view (partially schematic) of the present application;
fig. 3 is a schematic structural view of the first reinforcing rib.
In the figure:
1. a liquid tank outer plate; 2. absorbing the liquid; 3. a liquid tank inner plate; 4. a first reinforcing rib; 5. an arc-shaped support plate; 6. a second reinforcing rib; 7. an inner panel;
41. a wing plate; 42. a web.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 3, and the arc-shaped reinforced pressure bulkhead structure resisting bending due to water down explosion impact comprises an inner panel 7, a protective structure fixedly arranged on the inner panel 7 and close to one side of a protective liquid tank, a plurality of first reinforcing ribs 4 positioned on the side of the protective structure, and a plurality of second reinforcing ribs 6 positioned on the side of the inner panel 7, wherein the protective structure comprises a plurality of arc-shaped support plates 5 which are horizontally arranged and are butted side by side from top to bottom, and the first reinforcing ribs 4 are fixedly connected with the protective structure without gaps, and the second reinforcing ribs 6 are fixedly connected with the inner panel 7 without gaps.
The arc-shaped reinforced pressure bulkhead structure in the present application is preferably applied to the tank inner panel 3 structure. The protective structure and the outer plate 1 of the liquid tank jointly form the liquid tank, and the inner panel 7 and the defense longitudinal wall form a watertight tank.
The arc-shaped supporting plate 5 has a strong bending resistance effect, so that the acting force caused by shock waves and explosive air masses is effectively buffered, and the deformation degree of the steel plate is reduced.
The plurality of arc-shaped supporting plates 5 are arranged in a seamless array. The whole protection structure is welded with the deck, the bottom plate and the transverse bulkhead in a watertight manner, so that the fixing effect is achieved.
The resistance action of water can influence the flight tracks of detonation products and high-speed fragments in the liquid tank, so that the detonation products and the high-speed fragments are deflected and rotated to absorb and dissipate the kinetic energy of the detonation products and the high-speed fragments. The application of the arc-shaped reinforced pressure bulkhead structure has the advantages that the arc-shaped reinforced pressure bulkhead structure has a double-layer structure except for resisting shock waves and bubbles generated in a detonation process and fragment penetration, the double-layer bulkhead separation is realized in the face of high-speed fragments with higher quality and high speed, fragment energy is sequentially absorbed by the arc-shaped supporting plate 5 and the inner panel 7, the fragments hardly penetrate through the inner plate 3 of the liquid tank completely, and the water tightness of the liquid tank is also enhanced.
Under the same condition of control quality, the arc-shaped reinforced pressure bulkhead structure can enhance the structural strength of the whole bulkhead, enables the protection liquid tank to bear larger impact load, reduces the deformation of the inner plate of the liquid tank, and improves the protection capability of the protection liquid tank.
The welding mode is as follows: firstly, taking an inner panel 7 as a substrate, welding the upper end and the lower end of the arc-shaped support plate 5 at the lowest part on the inner panel 7, taking the upper end and the lower end as a reference, sequentially adding and welding other arc-shaped support plates 5 upwards, and butting two adjacent arc-shaped support plates 5 to present a seamless array arrangement mode;
the web plate 42 of the first reinforcing rib 4 and the arc-shaped support plate 5 are welded together, and after the fixing, the wing plate 41 of the first reinforcing rib 4 is welded on the web plate 42 to form the complete structure of the first reinforcing rib 4. The top of the web 42 reserves some space for welding, which is convenient for linking the web 42, the wing plate 41 and the top arc-shaped support plate 5 together. The welding and fixing of the whole protective structure on the inner panel 7 are completed;
after the whole reinforced supporting pressure bulkhead structure is welded in the mode, the reinforced supporting pressure bulkhead structure is welded with a deck, a bottom plate and a transverse bulkhead in a watertight mode, and the first reinforcing rib 4 and the second reinforcing rib 6 only need to be fixed with the deck and the bottom plate.
The first reinforcing rib 4 comprises a wing plate 41 and a web plate 42 which are fixedly connected into a whole, wherein the wing plate 41 is in a strip shape, one side surface of the web plate 42 fixedly connected with the wing plate 41 is a plane, and one side surface of the web plate 42 fixedly connected with the protective structure is a plurality of inner arc surfaces matched with the outer arc surfaces of the plurality of arc supporting plates 5.
The second reinforcing ribs 6 are T-section reinforcing ribs.
The wings of the T-section stiffener are arranged away from the inner panel 7.
The first reinforcing ribs 4 and the second reinforcing ribs 6 are arranged in a staggered mode along the ship length direction. The top end of each reinforcing rib is welded with the deck, and the bottom end of each reinforcing rib is welded with the bottom plate.
The upper end and the lower end of each arc-shaped supporting plate 5 are welded with the inner panel 7.
Every two adjacent arc-shaped supporting plates 5 are welded.
The fastening method between the wing plate 41 and the web plate 42 and the fastening method between the web plate 42 and the protective structure are welding.
Claims (4)
1. The utility model provides a pressure bulkhead structure is strengthened to crooked arc of explosion impact under water which characterized in that: it includes interior panel (7), set firmly protective structure who is close to protective liquid tank one side on interior panel (7), a plurality of first strengthening rib (4) that are located the protective structure side and a plurality of second strengthening rib (6) that are located interior panel (7) side, wherein protective structure includes that the level arranges and by a plurality of arc backup pad (5) of top to bottom butt joint side by side, be zero clearance rigid coupling between first strengthening rib (4) and the protective structure and between second strengthening rib (6) and interior panel (7), first strengthening rib (4) are pterygoid lamina (41) and web (42) as an organic whole including the rigid coupling, wherein pterygoid lamina (41) are the strip, be the plane on web (42) with a side of pterygoid lamina (41) rigid coupling, one side with the protective structure rigid coupling is a plurality of interior cambered surface complex with a plurality of arc backup pad (5), second strengthening rib (6) are T section bar, the alar portion (7) of keeping away from of interior panel (7) of T section bar are arranged, a plurality of first strengthening rib (4) and a plurality of second strengthening rib (6) are arranged along the long direction interlock.
2. The arc-stiffened pressure bulkhead structure of claim 1 resistant to bending from an explosive blast under water, wherein: the upper end and the lower end of each arc-shaped supporting plate (5) are welded with the inner panel (7).
3. The arc-shaped reinforced pressure bulkhead structure resisting bending from water blast impact according to claim 1 or 2, wherein: every two adjacent arc-shaped supporting plates (5) are welded.
4. The arc-stiffened pressure bulkhead structure of claim 1 resistant to bending from an explosive blast under water, wherein: the fastening mode between the wing plate (41) and the web plate (42) and the fastening mode between the web plate (42) and the protective structure are welding.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111508342.0A CN114212186B (en) | 2021-12-10 | 2021-12-10 | Arc-shaped reinforced pressure bulkhead structure resisting bending of underwater explosion impact |
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| CN202111508342.0A CN114212186B (en) | 2021-12-10 | 2021-12-10 | Arc-shaped reinforced pressure bulkhead structure resisting bending of underwater explosion impact |
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| CN114212186A CN114212186A (en) | 2022-03-22 |
| CN114212186B true CN114212186B (en) | 2022-10-04 |
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| CN115092311A (en) * | 2022-07-12 | 2022-09-23 | 哈尔滨工程大学 | Protective structure for resisting explosion impact under water |
| CN117763993B (en) * | 2023-12-22 | 2024-06-21 | 中国人民解放军国防科技大学 | Calculation method for petal-shaped tearing hole of wall plate of liquid filling box body triggered by water hammer load |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2821867B2 (en) * | 1995-08-11 | 1998-11-05 | 株式会社新来島どっく | Reinforcement structure of horizontal corrugated bulkhead of liquid chemical carrier |
| CN203714134U (en) * | 2014-01-20 | 2014-07-16 | 江苏海事职业技术学院 | Novel naval ship sideboard defense cabin structure |
| CN203946239U (en) * | 2014-06-06 | 2014-11-19 | 浙江海洋学院 | A kind of novel bulkhead |
| CN104943838A (en) * | 2015-04-21 | 2015-09-30 | 中国人民解放军海军工程大学 | Preposed ceramic type high-speed projectile resistant absorbing liquid cabin structure |
| CN106043594B (en) * | 2016-06-06 | 2018-10-16 | 中国人民解放军海军工程大学 | Naval Vessels Cabin variable strength venting of dust explosion bulkhead structure |
| CN106275243B (en) * | 2016-09-30 | 2019-02-19 | 广船国际有限公司 | A kind of groove profile wall construction of ship oil tank |
| CN206230998U (en) * | 2016-10-26 | 2017-06-09 | 中国舰船研究设计中心 | Clean ship composite protective bulkhead |
| CN107658030B (en) * | 2017-09-21 | 2019-10-29 | 大连理工大学 | A kind of ECC ripple filling reactor shock resistance shielding water jacket |
| CN109515616A (en) * | 2018-12-11 | 2019-03-26 | 中国人民解放军海军工程大学 | Protection fluid cabin with predeformation defence longitudinal wall |
| CN109515615A (en) * | 2018-12-11 | 2019-03-26 | 中国人民解放军海军工程大学 | Vacuole collapsing formula protects fluid cabin |
| CN112478048B (en) * | 2020-11-24 | 2021-11-05 | 江苏科技大学 | Polar region ship bulkhead unit capable of resisting impact and reducing noise |
| CN112829877B (en) * | 2021-01-27 | 2023-08-01 | 江苏海洋大学 | Oscillation device for reducing impact load of liquid tank and liquid tank |
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