RU7490U1 - Cumulative Ammunition - Google Patents

Abstract

Cumulative ammunition containing a shell, an explosive charge placed in it with a cumulative recess and a cumulative recess lining, characterized in that the profile of the outer surface of the cladding with a height of B = (0.28 - 0.32) H from its top is made according to the law and is mated to the rest the outer surface, the profile of which is made according to the law, the profile of the inner surface of the cladding is made as follows: R is the radius of the outer surface of the cladding, m; α is the angle of the cladding solution, degrees; y is the radius of the body, m; x is the axial coordinate, m; H is the height of the cladding , m

Description

Cumulative ammunition

The utility model relates to military equipment, in particular to the design of cumulative ammunition designed for; 1st penetration of armor equipped with dynamic protection (DZ).

Various designs of cumulative ammunition are widely known. G.I. Pokrovsky. Cumulative charge, M .; Soviet Encyclopedia, 1973, v. 13, p. 602-607. These ammunition, thanks to a high-speed cumulative explosive-fired explosion, is capable of penetrating pretenders with a thickness of up to 6 calibers. However, a significant drawback of the classic cumulative ammunition is a sharp decrease in their effectiveness over obstacles equipped with DZ, which, affecting the cumulative in full or somewhat worse, reads.

Also known is the design of the cumulative ammunition adopted as a prototype MKI 6F42B 1/02, RF patent N 206243l. Vul, N-17 from 06.20.96 ,. containing the housing, the explosive charge of the substance (BB) with cumulative recess and facing cumulative recess. A portion of the inner surface of the cladding with a height B from the top is formed by a curve of the third order and is associated with the subsequent cladding section. A cumulative jet (CS) with geometrical and kinematic parameters is formed from the cumulative lining section with a height of B, which ensures the penetration of the DZ without its initiation. An assessment of the sensitivity of the explosive occurred (according to Held's criterion, according to which the initiation of Bii cumulative occurs when the condition:

MKI 6F42B 1/02

r p. V, d — density g / cm3, velocity KM / CJ and diameter KM mm, respectively. Formed from the remaining part of the cumulative cladding KS freely penetrates through the hole in the DZ and is embedded in the material of the main barrier.

The disadvantage of this ammunition is that the Xld criterion is valid for a narrow range of initial conditions for the interaction between the CS and the explosive, and the criterion value of 180 cannot be used for an arbitrarily selected explosive. These circumstances can lead to the initiation of explosives used in remote sensing. which will entail a sharp decrease in armor penetration. and therefore the effectiveness of ammunition.

The objective of this useful (th model) is to increase the effectiveness of the cumulative ammunition over obstacles equipped with dynamic gear.

The cradle shaped ammunition contains, like the prototype 1T1P, a body, an explosive charge with a cumulative recess, and a cumulative recess lining, f (the most important is that the profile of the outer surface of the cladding is of height B - (0.28 ... 032) And from its peaks are made according to the law:

R 0.000004 a +5363904 y - 41 J92930 x- - 0.006053 a y + 0.013726 a X + 19.76263uh-g 0.00001 1 a - 0.279689 y +

+1,220945 X - 0,34945} and at x. I

and interfaced with the rest of the outer surface of the cladding, the profile of which is made according to the law:

g -0.255611-0.240408 in y + 0.194218 In, 025042 1i y In x, L, 433182-0.130004 In X -0.541961) i profile BHjapeHHCH of the cladding surface is made according to

the law:

R 0.000002 a- + 0.267675 y - 0.23735} x2 - 0.00 i 309 a y +

+0.004776 y x - 4.367550 y x - 0.000077 a + 0.029090 y + 0.212212 x + OJ05642 aux,

where R is the radius of the bunk} t "of the surface of the lining of m1; and - the angle of the facing | hail: y - the radius of the body X - the axial coordinate And - the height of the cladding m.

The choice of the height of the cladding section from the range B (0.28 .., 0.32) N is justified by the requirement of penetration of the drug window plate DZ and initialBaiiHH BB DZ with minimal loss of the effective length of the COP.

Comparative analysis with the prototype shows that the inventive cumulative ammunition to ensure high reliability of the effectiveness of the action on obstacles equipped with DZ, differs or Heio by performing profiles of the narc-window and the inner p on armor equipped with D-, spaced in time.

The essence of the utility model is illustrated in the drawing. Cumulative ammunition contains: detonator 1, explosive charge with cumulative B5 1cm 2, body 3, lining cumulative recess 4 with top 5. Part of the outer surface of the lining 6 height

3 part napjoKHOH surface 7, the profile of which is made by

the law {2.

The internal profile of the cladding surface 8 is made according to law 3.

The proposed cumulative ammunition operates as follows. When the detonator 1 is triggered, the explosive charge 2 is initiated, the detonation products of which, acting on the cumulative lining 4. form the cumulative structure-1. Thanks to the implementation of the cumulative lining according to the above laws, the separation of the CS into two fragments is ensured. The first CS fragment, formed from a cumulative cladding site of height B, acting on armor equipped with DZ, initiates the latter. The second CS fragment, formed from the rest of the CS, having a speed providing a delay of 300 μs between the actions of two CS fragments, which is optimal, in order to leave the DZ plate from the trajectory of the CS operation, acts unhindered along the main barrier, ensuring the penetration of the barrier.

It should be noted that the positive effect achieved as a result of the use of the proposed technical solution is achieved by providing a time delay between the action of fragments of the formed composite, better manufacturing technology of the cladding, and also by significantly simplifying the construction as a whole compared to the prototype.

4

Claims (1)

Cumulative munition containing a shell, an explosive charge placed in it with a cumulative recess and a cumulative recess lining, characterized in that the profile of the outer surface of the cladding with a height of B = (0.28 - 0.32) H from its top is made according to the law

and mates with the rest of the outer surface, the profile of which is made according to the law

and the profile of the inner surface of the cladding is made according to the law

where R is the radius of the outer surface of the cladding, m;
α is the angle of the cladding solution, degrees;
y is the radius of the body, m;
x is the axial coordinate, m;
H - lining height, m.