RU191879U1 - Combined warhead based on explosive microwave generators - Google Patents

Abstract

The utility model relates to the field of ammunition and can be used as a means of combined physical and functional destruction of weapons and military equipment with elements of electronic systems (RES). As a prototype, a warhead based on an explosive cumulative generator was selected (Utility Model Patent 179760, RU F42B 12/20; F42B 1/02; H01H 39/00. Declared 10/17/2017). The warhead consists of a hull acting as a fragmentation shell, with the main charge of the blasting explosive cyl of an indrical shape with a central axial cavity in which the solenoid winding and the radiation circuit winding are located, an additional cumulative precharge with a lining made of high magnetic permeability material, facing the main cylindrical charge, contactor, vibrator, power source. The essence of the proposed utility model consists in that, unlike the prototype, it contains two explosive magnetic generators: a pulsed explosive magnetic frequency generator and a spiral explosive magnetic gene ator frequency with an external liner, together provide maximization of the electromagnetic radiation or by increasing the pulse amplitude, or by forming poliimpulsnogo signal.

Description

The utility model relates to the field of ammunition and can be used as a means of combined destruction from the destructive effect of the explosion and functional damage due to pulsed powerful electromagnetic radiation (MEMI) of weapons and military equipment with elements of electronic systems (RES).

Known means of destruction (air bombs, warheads of guided and unguided missiles, artillery shells, etc.) are high-explosive, fragmentation, fragmentation-high explosive, cumulative-fragmentation actions, etc., containing a shell with irregular or predetermined fragmentation, explosive charge, explosive device, providing target destruction due to the action of a shock wave, fragments, a metal cumulative jet or kinetic energy of an impact [p. 13, fig. 16.7; p. 25, fig. 16.8; p. 28, fig. 16.10; p. 31. Fig. 16.12; p. 38, fig. 16.15; p. 43, fig. 16.17; p. 47, fig. 17.1; p. 52, fig. 17.8; p. 53, fig. 17.9; Kozlov V.V., Sevryukov I.T., Ilyin V.V. Physical foundations of the functioning of artillery weapons. Part P. Action and effectiveness of means of destruction. - Perm: OT and TO, 2012].

These means of destruction have only a destructive (high-explosive, fragmentation, cumulative or shock) effect.

The following analogs of explosive magnetic generators forming MEMI are known.

Known explosive generator (see Patent RU No. 2468495 from 11.27.2012), designed to produce a powerful current pulse, strong magnetic fields. In an explosive magnetic generator containing a hollow cylindrical body, the internal cavity of which is filled with working gas, a solenoid placed concentrically with the outside of the cylindrical body, an inductor placed concentrically with them between the solenoid and the cylinder, an actuator for rotating the cylindrical body, explosive according to the invention explosive is located in a thin layer on the inner surface of the cylindrical body, the cylindrical body is made of high-strength ma terial with low electrical conductivity.

The disadvantages of this device are its complexity, complexity. This device is capable of providing only functional damage to weapons and military equipment with RES elements, but does not have damaging factors.

Known electromagnetic bombs (EMBs) based on explosive magnetic frequency generators (HMHF) [Fig.12.42, p. 365; Ammunition: a 2-volume textbook / edited by V.V. Selivanova. - Moscow: Publishing House MSTU. N.E. Bauman, 2016].

The EMB is based on the methods of converting the chemical energy of the explosion into the energy of an electromagnetic field of high power. The principle of operation of the HMHF is based on the rapid change in the magnetic flux of an electrical device as a result of explosive action.

There is a known scheme for the construction of a UHMF for close combat means, which includes a warhead housing (warhead), cores, explosive charges, a vibrator, a solenoid coil, a battery, and a radiation loop winding. Cores made of high magnetic permeability material are suitable for the solenoid on both sides. Explosive charges are placed on the outside of the core. The solenoid is powered by an active battery with a primary current. A winding of the radiation circuit is superimposed on the solenoid, one end of which is grounded and the other connected to a half-wave vibrator. Structurally, the UHMH is located in the housing of the warhead of the weapon (SP). With the undermining of the joint venture, and consequently of the explosive, the cores move with great speed into the solenoid. In this case, the magnetic flux changes and an electromotive force of induction arises which is transmitted through the windings of the radiation circuit winding to the vibrator and radiated into space in the form of powerful ultrashort pulses of electromagnetic radiation (EMP) [Fig. Ammunition: a 2-volume textbook / edited by V.V. Selivanova. - Moscow: Publishing House MSTU. N.E. Bauman, 2016].

As a drawback, it should be noted that this weapon has a low explosive utilization rate, i.e. due to the presence of two massive cores acting as a permanent magnet, the filling coefficient η decreases, which represents the ratio of the mass of the explosive to the mass of the weapon:

where m _cc is the mass of the explosive, kg;

m _to - the mass of the body of the weapon, kg

As a prototype, a warhead based on an explosive magnetic cumulative generator was selected (Fig. 1). The warhead consists of a casing 3, which plays the role of a fragmentation shell, with the main charge of a blasting cylindrical explosive placed in it with a central axial cavity 4, in which the coil of the solenoid 6 and the coil of the radiation circuit 5 are located on top, an additional cumulative precharge 8 with lining 7, made of a material of high magnetic permeability facing the main cylindrical charge, contactor 1, vibrator 2, power source (capacitor bank) 11, contactors 9, 10 [Goat in V.V., Zontova T.V., Golubtsov D.L., Sevryukov I.T., Ilyin V.V. Warhead based on an explosive cumulative generator. Utility Model Patent 179760, RU F42B 12/20; F42B1 / 02; H01H 39/00. Claim 10/17/2017].

The detonation of the cumulative precharge 8 is synchronized so that under the action of detonation products a metal cumulative jet is formed at the moment when the initial magnetic field reaches a maximum intensity H when the capacitor bank 11 is discharged by the solenoid 6. In this case, the metal cumulative jet plays the role of a permanent magnet (core), which with a high speed (up to 20,000 m / s) it moves inside the solenoid 6. At the same time, the magnetic flux also changes and an electromotive force of induction arises, which through the winding turns radiation circuit 5 is transmitted to the vibrator 2 and is radiated into space in the form of a powerful ultrashort EMP pulse. The metal cumulative jet provides the formation of a cylindrical detonation wave, and ultimately provides an increase in the power of the explosion and the efficiency of high-explosive fragmentation [4].

As a disadvantage of the prototype, it should be noted that, along with high-explosive fragmentation action, this device is capable of generating only a single pulsed action of nanosecond duration.

The objective of this utility model is to increase the efficiency of a combined warhead based on explosive magnetic frequency generators in case of defeat of typical weapons and military equipment with RES elements by eliminating the above disadvantages of the prototype and analogues.

The technical solution consists in the fact that, in contrast to the prototype, the proposed warhead contains two explosive magnetic frequency generators: a pulsed explosive magnetic cumulative frequency generator and a spiral explosive magnetic frequency generator with an external liner,

The technical result is to maximize the action of MEMI either by increasing the amplitude of the pulse, or by forming a multi-pulse signal.

The essence of the proposed utility model is illustrated in FIG. 2-4.

In FIG. 2 shows a combined warhead based on explosive microwave generators of microwave radiation; FIG. 3 is a diagram of a spiral explosive magnetic frequency generator; FIG. 4 is a diagram of a pulsed explosive cumulative frequency generator.

The combined warhead (Fig. 2) based on explosive microwave generators of microwave radiation consists of a casing 3, which plays the role of a fragmentation shell, with the main charge of a blasting cylindrical explosive placed in it with a central axial cavity 4 in which the coil of the solenoid (internal) is located 6 and the winding of the radiation circuit 5, an additional cumulative charge 8 with a lining 7 made of a material of high magnetic permeability, facing the main cylindrical charge, an external copper th tube (liner) 12 and the external solenoid 13, placed coaxially between the housing 3 and the liner 12.

The structurally spiral explosive magnetic frequency generator (Fig. 3) consists of a load resistance (antenna system) 14, a power source (capacitor) 11, liner 12, with the explosive placed therein 4. An external solenoid 13 is located coaxially with the liner.

In FIG. 4 shows a diagram of a pulsed explosive magnetic cumulative frequency generator, representing a closed circuit, including a solenoid (internal) 6, load resistance 14, power source 11, contactor 1.

Undermining the cumulative charge 8 (Fig. 2) forms a metal cumulative jet (Fig. 4) at the moment when the initial magnetic field reaches its maximum voltage H when the high-voltage capacitor 11 (Fig. 4) is discharged to the solenoid 6. The metal cumulative jet plays the role of a permanent magnet (core), which with high speed (up to 20,000 m / s) moves inside the solenoid 6 (Fig. 4). In this case, the magnetic flux also changes and an electromotive force of induction arises, which is transmitted through the windings of the radiation circuit 5 (Fig. 2) to the load resistance (antenna system) 14 and is radiated into space in the form of a powerful ultrashort EMP pulse.

In addition, the metal cumulative jet provides the formation of a cylindrical detonation wave, and ultimately provides an increase in the power of the explosion and the efficiency of high-explosive fragmentation [3].

At the same time, when the main charge of a blasting explosive is detonated, the detonation products cause the liner to expand, forming a kind of cone (in Fig. 3 it is shown by a dashed line). As a result of this effect, the contour of the external liner 12 closes alternately the turns of the external solenoid 13 (Fig. 3), thereby reducing the inductance of the solenoid. In accordance with the Lenz rule, the magnetic flux Φ of the external spiral tends to remain unchanged, which, with a decrease in the inductance of the solenoid, is possible only by increasing the magnetic field strength H in open turns. It is this principle that underlies the generation of MEMI by this structure.

When combining the operation of these explosive magnetic frequency generators, of course, the antenna system should act as a load.

The action of electromagnetic radiation is maximized by increasing the output power: a pulsed explosive magnetic generator and a spiral explosive magnetic generator with an external liner, together maximize the action of MEMI either by increasing the amplitude of the pulse, or by generating a multi-pulse signal.

Bibliography

1. Kozlov V.V., Sevryukov I.T., Ilyin V.V. Physical foundations of the functioning of artillery weapons. Part P. Action and effectiveness of means of destruction. - Perm: FROM AND TO, 2012.

2. Ammunition: a 2-volume textbook / edited by V.V. Selivanova. - Moscow: Publishing House MSTU. N.E. Bauman, 2016.

3. Kozlov V.V., Zontova T.V., Golubtsov D.L., Sevryukov I.T., Ilyin V.V. Warhead based on an explosive cumulative generator. Utility Model Patent 179760, RU F42B 12/20; F42B 1/02; H01H 39/00. Declared 10/17/2017.

4. Kozlov V.V., Pogudin A.L. Combined bursting charge. Patent 2239774, RU F42B. Declared June 29, 2002.

Claims (1)

Combined warhead based on explosive magnetic generators of microwave radiation, consisting of a metal body of the warhead, a power source, the main explosive charge of a cylindrical shape with a central axial cavity, in which a solenoid coil, a radiation loop winding and an additional cumulative charge with a lining made of material of high magnetic permeability and facing the main cylindrical charge, characterized in that it also includes a spiral explosion a magnetic frequency generator containing an external liner in the form of a copper tube and located coaxially between the body and the liner, an external solenoid, which forms a closed loop together with the power source and load resistance.

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