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Explosion venting bulkhead structure with unequal intensity of naval vessel cabin

A strength and cabin technology, applied in the field of strength explosion venting bulkhead structure, can solve the problems of enhancing the destruction power, increasing the number of blast shock waves, and prolonging the action time of quasi-static pressure, so as to avoid the overall damage and improve the residual strength.

Inactive Publication Date: 2016-10-26
NAVAL UNIV OF ENG PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the action of conventional loads, this structure is conducive to reducing the weight of the structure and improving the utilization rate of materials; but under the explosion in the cabin, it will greatly increase the number of explosion shock waves, prolong the action time of quasi-static air pressure, and enhance its destructive power; Since each panel frame in the cabin will be damaged to the same degree, the damage range will be greatly increased, thereby greatly reducing the damaged residual strength of the ship
Therefore, under the explosion in the cabin, the ship structure with equal strength design will seriously affect the vitality of the ship

Method used

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  • Explosion venting bulkhead structure with unequal intensity of naval vessel cabin
  • Explosion venting bulkhead structure with unequal intensity of naval vessel cabin
  • Explosion venting bulkhead structure with unequal intensity of naval vessel cabin

Examples

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Effect test

Embodiment 1

[0024] Example 1: see Figure 1 to Figure 3 , the cabin (4) that needs to be vented adopts two unequal-strength explosion-venting bulkhead structures of the ship cabin according to the present invention, which are connected by the explosion-venting plate (1), the reinforcing rib (2) and the unequal-strength corner connection structure ( 3) Composition. The explosion venting plate (1), the reinforcing ribs (2) and the unequal strength corner connection structure (3) are made of marine steel materials. The reinforcing rib (2) adopts a T profile and is arranged inside the cabin (4) to be vented. The thickness of the web (5) and the face plate (6) of the T profile is greater than that of the explosion venting plate (1). The unequal strength corner connection structure (3) adopts a double plate (8). The thickness of the cladding plate (8) is greater than that of the explosion venting plate (1), and is arranged perpendicular to the explosion venting plate (1) and parallel to the ...

Embodiment 2

[0025] Example 2: see Figure 4 , the structure of this embodiment is basically the same as that of the first embodiment, the difference is that the unequal strength corner connection structure (3) adopts square steel (9), and the wall thickness of the square steel (9) is larger than that of the explosion vent plate ( 1).

Embodiment 3

[0026] Example 3: see Figure 5 , the structure of this embodiment is basically the same as that of the second embodiment, the difference is that the reinforcing rib (2) adopts square steel (10), and the wall thickness of the square steel (10) is larger than that of the explosion vent plate (1).

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Abstract

The invention relates to an explosion venting bulkhead structure with unequal intensity of a naval vessel cabin. The explosion venting bulkhead structure consists of an explosion venting plate, reinforcing ribs and corner connecting structures with unequal intensity, wherein the explosion venting plate is used for being damaged rapidly when an explosion occurs in the cabin to release pressure in the cabin; the reinforcing ribs are arranged on the inner side of the cabin, and are used for supporting the explosion venting plate and guaranteeing the residual intensity of a vessel body after the explosion venting plate is damaged; and the corner connecting structures with unequal intensity are arranged between the explosion venting plate and a strong bulkhead structure of the cabin, and are used for connecting the explosion venting plate and the strong bulkhead structure of the cabin, and guaranteeing that damage occurs on one side of the explosion venting plate when the explosion occurs in the cabin. Under the load of the explosion in the cabin of the naval vessel, the structure can be rapidly damaged to relieve pressure, so that the intensity and the energy of explosion products are dissipated through spatial distance and volume attenuation, the pressure of quasi-static air pressure is dispersed and reduced, the situation that the strong bulkhead structure of the cabin is integrally destroyed is avoided, and the residual intensity of the naval vessel structure is greatly improved.

Description

technical field [0001] The invention relates to a ship protection structure, in particular to a ship cabin of unequal strength which can be quickly damaged when a shock wave and a quasi-static pressure load are generated by an explosion in the cabin of the ship, release the pressure in the cabin, and reduce the damage degree of the strong bulkhead structure of the cabin. Explosion vent bulkhead structure. Background technique [0002] With the rapid development of modern anti-ship weapons, various high-performance semi-armor-piercing anti-ship weapons have become the main threat to the broadside of surface ships above the waterline. According to DeMar's empirical formula, taking the famous American Harpoon (AGM-84A) missile as an example, when the missile warhead hits the broadside at a speed of 340m / s, it needs 79.3mm thick steel armor to resist its kinetic energy armor penetration. Modern surface ships generally use thin-walled structures. Therefore, anti-ship weapons pen...

Claims

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Application Information

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IPC IPC(8): B63B3/58B63B3/56
CPCB63B3/56B63B3/58
Inventor 侯海量陈鹏宇朱锡陈长海
Owner NAVAL UNIV OF ENG PLA
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