RU2506527C1 - Staroverov-3 active armour (versions) - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: invention refers to active protection means of tanks and other armoured objects. Active armour includes cells filled with an explosive. An insert-piston is installed with restricted pre-load in each of the cells. Shape of cells can be square, hexagonal and honeycomb.

EFFECT: providing protection of a tank against damages in different directions.

7 cl

Description

The invention relates to active protection of tanks and other armored objects. Active armor is known (they also say “active defense”) according to my application No. RU 2010153750, in which the armor cells work forward according to a certain algorithm. Such armor can protect against hit by a projectile, a uranium rod, a tandem cumulative grenade, a plastic projectile (hereinafter “projectile”) in front in the sector + -30 degrees horizontally and + -15 degrees vertically. But not a single active armor can protect a tank from hitting a projectile at an angle close to perpendicular to the armor.

The objective of the invention and the technical result is to protect the tank from all defeats from all directions.

It is noted that when a fast-flying uranium rod, and especially a cumulative jet, gets in, the armor material behaves like a Newtonian fluid. That is, it spreads to the sides of the rod or stream, and the mechanical strength of the material hardly plays a role: the main thing is the density of the armor substance. However, the spreading of the armor material can be prevented by creating a very strong back pressure in the zone of interaction of the armor with the rod or stream.

OPTION 1. For this, the active armor contains cells filled with explosives into which the piston insert is buried. That is, during the explosion of an explosive (hereinafter BB) in a cell, a powerful surface force acts on the armor, which presses on the armor material and creates omnidirectional forces in it, which tend to push the rod out of the armor or try to slam a cavity made by a cumulative jet.

Both the piston insert itself and, especially, the cell walls must be strong enough not to experience large deformations during the explosion of an explosive. The shape of the cells in the plan (that is, parallel to the tangent to the armor surface) can be square, hexagonal, honeycomb (the latter means that the cells are hexagonal and the piston insert is round).

So that the insert does not fall out during shaking, it is pushed into the cell with a limited interference (that is, it can fly out during the explosion), and, in addition, the cell size is stepwise in depth, and the insert abuts against the tapering part of the cell. This is necessary so that the cell does not work from a random bullet or fragment.

With a certain amount of humor, the piston insert can be called a projectile flying out of the cell towards the striking element. This in itself will already reduce the projectile's striking ability, but this is not the main thing: an explosive explosion creates stresses in the armor material that are directed towards the stresses from the impact of the projectile or stream, and seeks to squeeze and push the projectile out of the armor. Of course, he will not succeed, but the penetration resistance of the projectile or jet will increase significantly. There is a temporary increase in the strength of the armor material in this place by preliminary omnidirectional compression in the opposite direction. I propose to call this type of active armor “occlusive”.

To a first approximation, the area of such anti-compression can be chosen equal to the thickness of the first armor sheet. That is, the diameter of the cell is approximately equal to the thickness of the first armor sheet. And the thickness of the piston liner is about 2/3 of the diameter, that is, it is a very durable piston that can withstand even the hit of a specific 30 mm projectile capable of piercing 60 mm of homogeneous armor. Hence, by the way, the idea that the piston liner may have a multilayer design

OPTION 2. However, the piston liner can also play the role of "three in one." For this, the piston insert and the socket in the cell for it have a cut (similar to artillery, only cooler). That is, during the explosion of explosive in a cell, a powerful twisting force acts on the liner, which twists it in the cell (the rotation speed can reach 10,000 rpm). And the liner has a powerful destabilizing effect on the projectile, rod or cumulative jet.

To make the insert easier to rotate in the cell, it can be located in a fluoroplastic glass made of F-4 graphite fluoroplastic. This reduces the likelihood of jamming of the piston liner in the cell socket when it enters neighboring cells.

But individual cells of any option must still be correctly positioned on the main armor. So that the protection is equally balanced, or at least there is a lack of weaknesses. Rational arrangement of hexagonal cells in a honeycomb pattern with a round or hexagonal piston insert.

The cell works like this: when a shell hits, etc. the piston liner breaks through and the explosives underneath detonate, spinning the liner and tossing it. Scrolling on the rifling, the liner spirals out of the cell towards the projectile and destabilizes it or “cuts” the cumulative stream.

Such active armor is very simple structurally - provided that the main armor with existing cells with ledges is cast, it contains only one cast turned part, but nevertheless it protects the tank very effectively from all types of defeats. If there are no mentioned cast cells, that is, if we are talking about modernization of existing tank models, then it’s enough to weld hex glasses on the main armor.

OPTION 3. You can enhance the action of the piston liner, if you apply two or more. That is, the armor contains cells in which there is an explosive at the bottom, then the first piston insert, then again the explosive, and so on several times (in practice, two are enough).

This will improve the resistance of the armor in case of an oblique hit of the projectile - the upper piston liner will be broken and the explosive will detonate underneath, detonate the explosive and under the second lower piston, which will also fly out, rotating, although the shell itself did not hit it. Thus, with an oblique hit of the projectile, not one cell will work, but two or three, which will increase the protection of the tank.

The piston insert, if there is one, should not be flush with the cell socket; there may be some acceleration for this “projectile”. But if there are two or more inserts, then the latter (in the sense - external) can be flush with the nests of the cells.

Claims (7)

1. Active armor containing cells, characterized in that the cells are filled with explosives, in each of which is a piston liner. 2. The armor according to claim 1, characterized in that the piston insert is installed in a cell with a limited interference fit, so that it can fly out during an explosion, the cell size is stepwise in depth and the insert abuts against the tapering part of the cell. 3. The armor according to claim 1, characterized in that the liner is located in a fluoroplastic glass of graphite fluoroplastic. 4. Active armor containing cells, characterized in that in each cell there is an explosive substance and a piston insert, and the piston insert and socket in the cell for it have a cut similar to artillery, only steeper. 5. Armor according to claim 4, characterized in that the hexagonal cells are arranged in a honeycomb order with a round or hexagonal piston insert. 6. The armor according to claim 4, characterized in that the piston insert has a multilayer structure. 7. Active armor containing cells, characterized in that at the bottom of each cell is an explosive, then a first piston insert, then an explosive again, and so on several times.