RU2400700C1 - Antitank electromagnetic mine - Google Patents

Abstract

FIELD: weapons and ammunition. ^ SUBSTANCE: proposed mine comprises metal case, explosive charge with hollow cavity covered by metal shell and fuse. Charge face, opposite said hollow cavity, accommodates primary feed module and electromagnetic generator with its one output connected with metal shell top part and another one connected with mine case. Mine case is electrically insulated from metal shell. ^ EFFECT: higher efficiency of hitting armored vehicles. ^ 2 cl, 3 dwg

Description

Technical field

The invention relates to military equipment. The technical result is the creation of a more effective ammunition (PSU) for hitting well-protected targets (armored vehicles), in which, in addition to the main damaging factor, for example, an attack nucleus (cumulative jet), an additional damaging factor appears - electromagnetic, capable of affecting the active defense system (SAZ) ) and electronic blocks of goals.

State of the art

The invention relates to technical devices serving to defeat armored vehicles.

In [1], an anti-tank anti-aircraft cumulative mine TM-83 is described, which is the closest analogue of the present invention and is selected as a prototype. It contains a steel body with a charge of explosive (BB), a copper lining and a fuse. Type of fuse is a non-contact two-channel with seismic (SDC) and optical (ODC) target sensors. In addition, it includes a safety-executive mechanism (PIM), a closing mechanism, a control panel and a fuse. The target hit range is up to 50 m, the impact core forms a hole with a diameter of 80 mm in an armor 100 mm thick.

The mine works as follows.

As the target approaches the mine’s installation site, soil vibration is perceived by the SDC seismic receiver, where the seismic signals are converted into electrical ones. The SDC electronic unit amplifies these signals, carries out their time-frequency processing and provides circuit closure between the ODC and PIM. When the target crosses the mine’s aiming line, the ODC lens concentrates the infrared radiation energy emitted by the target at the receiving site of the pyroelectric module. The pyroelectric module converts the radiation energy into an electrical signal, which is fed to the PIM electric igniter through filters, an amplifier, and an actuator. The electric igniter is triggered, causing an explosion of fuse, an additional detonator and a mine charge. In the event of a charge explosion, a high-speed compact element (impact core) is formed from the lining, which strikes the target.

Modern armored vehicles (in particular, tanks) are supplied, and promising even more so will be supplied, SAZ, which can be considered as a miniature air defense system. It includes a radio-electronic system for automatic detection, selection and tracking of flying objects. She issues a command to shoot special fragmentation warheads that destroy dangerous objects on approach. The effectiveness of the action of SAZ on such relatively low-speed objects as rocket-propelled grenades or guided anti-tank missiles is close to absolute.

The speed of a compact striking element (PE) is ~ 2 km / s, and modern self-propelled guns cannot intercept such high-speed objects. However, SAZs are constantly being modified, developed, and it is likely that promising SAZs with the necessary capabilities will be created in the near future.

It is obvious that the SAZ is a peculiar and fairly reliable frontier of defense, which must be overcome by means of destruction.

Disclosure of invention

The solved problem of the present invention is to increase the effectiveness of the defeat of armored vehicles equipped with SAZ, achieved by an additional damaging factor - electromagnetic.

This problem is solved by the fact that in the known technical device containing a metal case, an explosive charge with a cumulative recess covered with a metal cladding, and a fuse, at the end of the charge opposite the cumulative recess, a primary power supply module and an explosive generator are installed, one output of which is electrically connected to the top of the metal lining, and the second with the mine shell, while the mine shell is electrically isolated from the metal lining. In the process of functioning of the device, in addition to the cumulative effect of the mine, pulsed electromagnetic radiation (EMR) is generated, which affects the SAZ and the electronic components of the target.

A possible embodiment of the device with the primary power supply module in the form of an explosive piezoelectric generator, which is an explosive charge with a plane-wave generator mounted on the end of the piezoelectric element.

List of drawings

Figure 1 - diagram of an anti-tank electromagnetic mine;

Figure 2 - connection diagram of the electromagnetic and cumulative modules;

Figure 3 - explosive piezoelectric module and a mine fuse.

The implementation of the invention

In the drawings, numbers and letters denote:

1 - cumulative module;

2 - electromagnetic module;

3 - primary power supply module;

4 - fuse;

5 - housing cumulative module;

6 - electrical insulating layer;

7 - cumulative lining;

8 - explosive charge;

9 - connecting sleeve between the liner and the cumulative lining;

10 - liner;

11 - the body of the electromagnetic module;

12 - spiral winding;

13 - front insulating sleeve;

14 is a block with a detonation plane wave generator;

15 - block piezoceramics;

ODC - optical target sensor;

SDC - seismic target sensor;

VMG - explosive magnetic generator;

BB - explosive;

PD - detonation products;

I is the current;

D is the velocity of the detonation wave front.

The analysis shows that the implementation of the anti-tank mines according to the proposed technical solution allows not only to obtain an instrument for influencing SAZ armored vehicles in the form of pulsed electromagnetic radiation, but also to increase the effectiveness of armor-piercing action for PE.

It is known [2] that under the influence of a microwave pulse in the target’s electronics, either a short aftereffect lasting more than one information processing cycle appears (insignificantly affects the probability that the target will complete a combat mission), or temporary blindness - a recovering electronics failure (significantly reduces the probability of a combat mission) or a complete failure of the electronics.

The effect of temporary blinding of electronics (SAZ) can be recognized as the most optimal form of combat action [2], since it can be realized with the ammunition of the smallest power, dimensions and cost.

Figure 1 presents a diagram of the proposed technical device. Here, between the mine itself (cumulative module 1) and the fuse 4 of the prototype [1], an electromagnetic module 2 and a primary power supply module 3 are additionally introduced. As an electromagnetic module 2, for example, a spiral explosive magnetic generator (SVMG) can be used, and as a module primary feeding 3 - an explosive piezoelectric generator, moreover, they are well assembled from 1 and 4 into a single device along one common axis.

Figure 2 shows the connection diagram of the electromagnetic and cumulative modules, in accordance with which they form a single device - explosive magnetic frequency generator (VHMF). From [2] it follows that the MHF is a parametric amplifier that works only at those times when the current is significant. The amplifier includes:

- variable inductance (spiral 12),

- a capacitor of small capacity (one lining - mine body 5, the second - cumulative lining 7 together with the connecting sleeve 9),

- variable resistance (liner 10).

When the SVMG is triggered and the spiral 12 is closed by the liner 10 expanding under the action of detonation products, high-frequency voltage and current fluctuations occur in the UHMH circuit (in Fig. 2, the possible current directions are shown by arrows), and the open spiral turns 12 represent an effective spiral antenna in this situation. Pulse EMP, propagating from the antenna in the surrounding space, affects the electronics of the targets, leading to its temporary blindness or even failure.

For the operation of the device, a source of initial energy, which can be used, is an explosive piezoelectric generator 3 (Fig. 3), consisting of two blocks — a detonation plane-wave generator 14, which forms a plane shock wave in piezoelectric ceramics 15, as a result, at the exit of 3 we have acceptable voltage and current values for powering the SVMG.

In the proposed technical device, in addition to the appearance of an additional damaging factor (electromagnetic), another positive feature is manifested, which should be mentioned. When the device operates as a parametric amplifier, a significant increase (hundreds of times) in the current and voltage in the circuit occurs. Consequently, a powerful current (of the order of tens ... hundreds of kA) will flow through the cumulative lining 7 even for a very short period of time (of the order of several tens of microseconds). This will inevitably lead to a significant heating of the lining 7, which will positively affect the process of forming compact PE from it, since it is known that the plastic properties of the metal increase with temperature. As a result, from the cumulative lining 7 it will be possible to obtain a more elongated PE in comparison with the prototype, which, in turn, will have greater breakdown ability (breaks through thicker barriers). Moreover, choosing the appropriate parameters of modules 2 and 3, it is possible to control the parameters of PE by limiting the magnitude of the current through the lining and, therefore, by heating it.

The proposed technical device operates as follows.

When the target crosses the mine’s aiming line, the PIM electric igniter of fuse 4 is triggered. From it, the signal is simultaneously fed to modules 2 and 3.

During operation of module 3, a plane detonation wave is formed in block 14, and then a plane shock wave is formed in block 15, which compresses piezoceramics and generates current and voltage pulses for the initial powering of electromagnetic module 2.

During the operation of module 3 and reaching the maximum current in module 2, the detonation wave propagates in the explosive charge of liner 10, the liner expands and it closes the spiral winding 12. As a result, a closed oscillatory circuit is formed (spiral winding 12 — capacitor 5, 7, 9 — liner 10), in which, when the detonation wave propagates in the liner 10, the turns of the winding 12 are sequentially closed with a decrease in inductance and active resistance, which leads to a significant increase in the current and voltage in the circuit.

Open windings, coils 12 represent an effective helical antenna in this situation. Pulse EMP, propagating from the antenna in the surrounding space, acts on the electronics (SAZ) of the targets, leading to its temporary blindness or even failure.

The flow of a powerful current through the cladding 7 leads to its significant heating, which leads to an increase in the plastic properties of the cladding metal and allows the formation of a more elongated PE with greater breakdown ability.

Information sources

1. Means of destruction and ammunition: Textbook / A.V. Babkin, V. A. Veldanov, E. F. Gryaznov and others; Under the total. ed. V.V.Selivanova. - M.: Publishing House of MSTU. N.E.Bauman, 2008 .-- 984 p.

2. A.B. Prishchepenko. Explosions and waves. Explosive sources of electromagnetic radiation in the radio frequency range. - M .: BINOM. Laboratory of Knowledge, 2008. - 208 p.

Claims (2)

1. An anti-tank electromagnetic mine containing a metal casing, an explosive charge with a cumulative recess covered with a metal lining, and a fuse, characterized in that at the end of the charge opposite the cumulative recess, a primary power supply module and an explosive generator are installed, one output of which is electrically connected to the top of the metal lining, and the second with the mine shell, while the mine shell is electrically isolated from the metal lining. 2. Antitank electromagnetic mine according to claim 1, characterized in that the primary power supply module is made in the form of an explosive charge with a plane wave generator mounted on the end of the piezoelectric element.

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