RU126114U1 - ACTIVE ARMOR - Google Patents

Abstract

Active armor, consisting of series-parallel layers of materials with outer and inner steel sheets, characterized in that it is a honeycomb structure with an intermediate easily deformable metal sheet following the outer steel and explosive multilayer composition, including a front propellant dispersed layer of highly hard corundum particles and the next active layer of the mixed explosive.

Description

The utility model relates to the field of military equipment and is intended for armor protection from bullets of small arms and fragments, and can also be used to construct armor for protection against artillery shells, mines, anti-tank missiles, and modernization of the currently used standard dynamic protection of armored vehicles.

The known principle of building active protection of armored vehicles from the effects of cumulative charges [Vorotilin M.S., Dorofeev S.V., Knyazeva L.P., Chukov A.N. Issues of modeling and designing of cumulative charges / Textbook. Tula: Tul-GU, 2003. - 168 p.]. The active armor element contains two metal plates with a layer of explosive placed between them. When a cumulative jet is introduced into an active armor element, an explosive is initiated, which leads to the throwing by the detonation products of the plates, which, when interacting with a cumulative jet, significantly reduce its effective length, resulting in a decrease in the efficiency of the cumulative charge over the main barrier as a whole.

This element of active armor has imperfections. Active defense works in a narrow range of conditions for the interaction of a cumulative jet with armor (angle of fire, the moment of projectile initiation), reducing the effectiveness of protection to tens of percent. This design provides armor protection against cumulative shells, but protection against armor-piercing sub-caliber shells or bullets is not implemented.

In principle, at present, there is no bulletproof active protection of light armored structures (helmets, breastplates, body armor), representing a structure of parallel armored plates filled with explosive mixture between them. Therefore, further, as a prototype, anti-cumulative and anti-shell armor was adopted to protect military equipment.

The prototype is anti-cumulative and anti-projectile reactive armor (US Pat. No. 4,867,077, MKI ⁴ F41H 5/04, NCI 109-36, published September 19, 89, or UK application 2200437, F41H 5/04, NCI F3C) containing an explosive mixture located between layers of elastic material, in turn, placed between the armor plates and provided with lateral ribs for fixing the elastic bag with the formation of a closed protective unit, which can be used to protect inclined reservation sheets of the vehicle.

The disadvantage of this reactive armor is the lack of effectiveness in the defeat of the attacking shell, both from cumulative and sub-caliber armor-piercing. But the tank armor is developed initially insensitive to lumbago bullet of small arms. Therefore, as a prototype, the principle of the formation of active protection from a layer-by-layer arrangement of layers was taken, and the proposed fundamentally new active cumulative effect of active armor provides protection against small arms bullets and fragments.

A design of active armor with an active cumulative effect is proposed, which is a honeycomb multilayer structure of outer and inner steel sheets, an intermediate easily deformable metal sheet material and explosive multilayer composition. An explosive multilayer composition consists of a front propellant dispersed layer of highly hard corundum crystals and the next effective mixed explosive. The proposed armor protection is based on the cumulative effect created by a bullet in a collision with an armored structure.

The technical result is aimed at increasing the armor resistance of military equipment due to a fundamentally new design of armor using the cumulative effect inside the active layer of armor.

The technical result is achieved in that the active armor, consisting of series-parallel layers of materials with the outer and inner steel sheets, is a honeycomb structure with an intermediate easily deformable metal sheet following the steel outer, and then an explosive multilayer composition, including a front throwing a dispersed layer of highly hard corundum particles, and followed by an active layer of a mixed explosive.

The proposed active armor in the form of a cellular armored structure represents parallel-sequentially arranged layers of materials using explosives, which together provide a more effective active armor protection.

The outer 1 and inner 2 layers of armor, as shown in the figure, are made of structural steel, ensuring the integrity of the armored structure itself and the effective braking of the bullet. Behind the outer layer is a sheet of easily deformable ductile metal 3. Next is a propellant dispersed layer of highly hard particles of corundum 4 and an active elephant of mixed explosive 5.

The outer steel sheet 1 with a thickness of 1 mm with mechanical characteristics lower than Art. 3 also provides protection against armor triggering during accidental and permissible low-speed low-energy impacts on the surface. The inner sheet 2 is made of hardened steel with a thickness of at least 6 mm.

When a bullet is struck and embedded in the active layer of the proposed armored structure, an easily deformable plastic layer of metal 3 extends into the active layer of explosive 5, repeating the contours of the implanting zero or high-energy fragment, forming a finished lined cumulative funnel. Thus, the penetrating bullet in the active layer forms for itself a cumulative lined funnel, and the funnel can be a solid cap or be in the form of very elongated “petals” or “skirts”.

At the same time, a throwing layer 4 of powder particles of highly hard corundum and binder material repeats the configuration of the cumulative funnel lining, adding and strengthening the effect of the metal mass of the lining. At the moment of activation of the active layer, corundum crushes the armored core of the invading bullet.

In the activated active cell, the working zone of compression and ultrahigh pressure adjacent to the resulting combined cumulative lining is 5-7 mm in diameter.

An active layer of powerful blasting explosive with the necessary sensitivity was used. This achieves the complete introduction of the bullet into the active layer, the complete formation of a cumulative lined layer consisting of an easily deformable plastic layer 3 and a propellant dispersed layer 4, as a result of which the explosive of the active layer is triggered by the cumulation effect mechanism. An explosive is used with a maximum steepness of the explosive-temporal characteristics.

Thus, any implanted element with a threshold sensitivity for a substance forms a cumulative funnel with a lining that is perfectly accurate in shape.

The second area of application of the present invention. Each standard element of active tank protection is complemented by a liner of a thick layer of plastic material. This liner gives the effect of the formation of a powerful cumulative metal cladding, with all the above findings, which will provide protection from both cumulative and armor-piercing shells. The introduction of the effect can be carried out at the plants when the expiration date of the old standard elements, their replacement and re-equipment with new ones.

Claims (1)

Active armor, consisting of series-parallel layers of materials with outer and inner steel sheets, characterized in that it is a honeycomb structure with an intermediate easily deformable metal sheet following the outer steel and explosive multilayer composition, including a front propellant dispersed layer of highly hard corundum particles and the next active layer of the mixed explosive.

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