UA44627A - DYNAMIC PROTECTION CHARGE - Google Patents

Abstract

The proposed explosive charge for dynamic protection contains a shell filled with explosive. The charge shell is constructed in the form of a cylinder. At the shell, along the longitudinal axis thereof, a recess is made as a cumulative groove formed by the cylindrical surface with dimensions no less than 0.333 and no more than 1.83 of the shell outside circle radius. The displacement of the longitudinal axis of the cumulative groove is equal to 0.3330-1.83 of the shell inside circle radius. At the charge surface, on the side of the shell part with a larger diameter, an opening is made that is perpendicular to the charge longitudinal axis. The end surfaces of the charge are inclined. The shell end cut is made at an angle of 0-45 degrees, and is inclined to the shell opening. The charge ends are closed by caps.

Description

The invention relates to the field of armaments, in particular, to the constructions of dynamic protection charges, which are used in devices for dynamic protection of objects of military equipment against high-velocity weapons.

A known charge of dynamic protection, which contains a part of an armored plate, which is installed on the body of an armored vehicle, while this element of the plate is made in the form of a grid, the cells of which serve as chambers for small charges that are initiated under the action of mechanical pressure (1). Each such charge reacts in a point-like manner to the impact of a projectile with high kinetic energy and deflects it from its original trajectory.

The disadvantages of the known dynamic protection charge are that the mentioned charges do not work under the influence of kinetic means of destruction, do not work under the influence of self-forming shock-cumulative ammunition, and thus have a low ability to protect obstacles from high-speed means of destruction. The disadvantages of the known dynamic protection charge include the fact that the mentioned dynamic protection charges are not resistant to the influence of elevated temperatures, causing low survivability of the installation sites on the object of protection.

The closest technical solution chosen for the prototype is a charge of dynamic protection, containing a shell filled with an explosive substance |21.

The disadvantages of the known charge of dynamic protection, which was chosen as a prototype, is that the said charge of dynamic protection has a low reliability of operation under the influence of kinetic means of destruction and, thus, has a low ability to protect against high-speed means of destruction. Among the disadvantages of the known charge of dynamic protection is the fact that the specified charge does not work under the influence of self-forming shock-cumulative ammunition, is not resistant to the influence of elevated temperatures, and causes the low survivability of the places where the blocks of the specified charges are installed on the object of protection.

The invention is based on the task of improving the tactical and technical characteristics of the proposed dynamic protection charge by eliminating the shortcomings of the prototype.

The essence of the invention in a charge of dynamic protection, containing a shell filled with an explosive substance, is achieved by the fact that the shell of the charge/ is made in the form of a cylinder, a recess is made on the surface of the shell of the specified charge along its longitudinal axis, the said recess is made in the form of a cumulative recess formed by a cylindrical a surface with geometric dimensions of not less than 0.333 and not more than 1.83 of the radius of the circle of the charge shell on the inner surface of the specified shell, the shift of the longitudinal axis of the cumulative notch relative to the longitudinal axis of the charge is made by the amount of 0.333 - 1.83 of the radius of the circle of the charge shell on its inner surface, on the surface of the specified charge on the side of the shell with a large radius, a cut is made that is located perpendicular to the longitudinal axis of the charge, the end parts of the said charge are made with an inclined surface, the said end cut is made at an angle in the range from 0 to 45 degrees, the end cut is made inclined to the side of the said cut on the shell , while on the end cha Caps are attached to the walls of the charge.

A comparative analysis of the claimed technical solution with the prototype shows that the dynamic protection charge differs in that the shell of the charge is made in the form of a cylinder, a recess is made on the surface of the shell of the specified charge along its longitudinal axis, the said recess is made in the form of a cumulative recess, which is formed cylindrical surface with geometric dimensions of not less than 0.333 and not more than 1.83 of the radius of the circle of the charge shell on the inner surface of the specified shell, the shift of the longitudinal axis of the cumulative notch relative to the longitudinal axis of the charge is made by the amount of 0.333-1.83 of the radius of the circle of the charge shell on its inner surface, on on the surface of the specified charge from the side of the shell with a large radius, a cutout is made, which is located perpendicular to the longitudinal axis of the charge, the end parts of the mentioned charge are made with an inclined surface, the mentioned end section is made at an angle in the range from 0 to 45 degrees, the end section is made inclined to the side of the mentioned cutout on shells, at the same time caps are attached to the end parts of the charge.

Thus, the claimed dynamic protection charge meets the "novelty" criterion of the invention.

The essence of the invention is explained with the help of illustrations, where in fig. 1 shows a general view of the dynamic protection charge claimed in fig. 2 - 4 show the structural and compositional diagrams of the dynamic protection charge, respectively, in a top, front and side view, in fig. 5 shows the view of the charge of dynamic protection in the front view in the section with the display of geometric values, in fig. 6 - 11 shows the diagram of the destruction by means of a block of charges of dynamic protection of a cumulative jet of a high-speed means of destruction in stages.

The charge of dynamic protection, as a design option, contains a shell 1 filled with an explosive substance 2. The shell 1 of the charge is made in the form of a cylinder (with a radius A on the outer surface of the shell 1). A recess 3 is made on the surface of the shell 1 of the specified charge along its longitudinal axis. The said recess C is made in the form of a cumulative recess formed by a cylindrical surface with geometric dimensions of not less than 0.333 and not more than 1.83 g radius of the circle of the shell 1 of the charge along the inner surface 4 of the specified shell 1. The displacement 7 of the longitudinal axis of the cumulative notch (position 3) relative to the longitudinal axis of the charge is made by the amount of 0.333 - 1.83 g of the radius g of the circle of the shell 1 of the charge along its inner surface 4 (7-0.333... 1.83g) (see fig. 5). On the surface of the specified charge, on the side of the shell 1 with a large radius A, a cutout 5 is made, which is located perpendicular to the longitudinal axis of the charge (see Fig. 4). The end 6 parts of the mentioned charge are made with an inclined surface (see Fig. 4).

The mentioned end section would be made at an angle in the range of angles from 0 to 45 degrees, for example, at an angle of 30 5 2 degrees. The end cut b is made inclined to the side of the mentioned cutout 5 on the shell 1 (see Fig. 4). Structurally, caps 7 are attached to the end parts 6 of the charge (see fig. 1 - 2, fig. 4).

The charges are placed inside the case 8 parallel to each other, that is, located in the same plane, next to each other with direct contact with each other along the shell 1, while the recess C of each of the charges, which is made in the form of a cumulative recess, is located in a plane perpendicular to at the base of the case 8 (see fig. b).

Charges of dynamic protection (see Fig. 1) are manufactured in factory conditions. According to the charge manufacturing technology, a cylindrical shell 1 is pre-manufactured, it is filled with an explosive substance 2, and a recess 3 is made on it. At the same time, the mentioned recess C is made in the form of a cumulative recess formed by a cylindrical surface with geometric dimensions of at least 0.333 and no more than 1.83 radius g of the circle of the shell 1 of the charge on its inner surface 4 (see Fig. 5). On the side of the shell 1 with a large radius A, cut 5 is made, which is located perpendicular to the longitudinal axis of the charge (see Fig. 4). The end parts b of the charge are made with an inclined surface, while the mentioned end section (position 6) is made, as a design variant, at an inclination (angle a) in the range from 0 to 45 degrees, for example, at an angle a - 30 2 2 degrees ( see Fig. 4). Structurally, the end cut (position b) is made by tilting to the side of the mentioned cutout 5 on the shell 1 (see Fig. 1 and Fig. 4). The inner volume of the shell 1 is filled with an explosive substance 2. The end parts 6 of the charge are closed with caps 7 (in order not to spill the explosive substance 2 and to ensure heat resistance) (see fig. 1 - 2 and fig. 4).

Charges manufactured according to the above-mentioned technology are placed inside the case 8 parallel to each other, namely, in the same plane, next to each other with direct contact with each other along the shell 1 (see Fig. 6). The above-mentioned placement of the dynamic protection charges provides the latter placement at an angle of 907 relative to the base of the case 8 and the location of the cumulative notch. From each of the charges turned to the side, opposite to the base of the case 8 (see Fig. 6). In this way, the cumulative recesses of the C charges (when placing them in the housing 8) will be turned in one direction and at one angle relative to the base of the housing 8, for example, at an angle of 90".

The device assembled in this way from dynamic protection charges, for example, to protect an obstacle from high-speed means of destruction 9, is installed on the outside of the obstacle 10, for example, on the body of an armored vehicle.

A device assembled from dynamic defense charges to protect an obstacle from high-speed weapons works as follows.

When the high-speed means of destruction (position 9, see fig. 6 - 11) approaches an obstacle (position 10, see fig. b - 11), the mentioned means of destruction 9 is activated, which with a cumulative jet 11 begins to affect one of the charges placed in case 8 (see Fig. 7). When the high-speed weapon 9 comes into contact with the charge (with the explosive substance 2 inside the shell 1), the detonation of the specified explosive substance 2 is initiated. At the same time, the explosion of the detonation products is accompanied by the spread of discharge waves that go from the outer surface of the charge to its center . These waves are arcs of circles. At the intersection of the discharge waves coming from the cumulative notch З and the cylindrical shell 1 (charge cladding), a boundary will be formed that divides the charge into two parts. That part of the explosive substance 2, which is located closer to the cumulative recess C (active mass of the charge), will ensure the formation of a cumulative jet (position 11) of a cylindrical charge. The remaining part of the charge causes the detonation products (as well as the cylindrical shell 1) to fly in the opposite direction from the cumulative jet (position 11).

Together with the products of the expanding charge detonation, the explosive substance 2 formed from the cumulative recess C in the form of a cumulative jet 11 will affect the high-speed weapon 9, breaking it into separate fragments and deviating from the original flight path. Charges can also be triggered both singly and sequentially (see Fig. 8 - 11), while the cumulative jet 11, which was also formed from the cumulative recess C of each of the charges, will affect the high-speed means of defeat 9 (or its cumulative jet 11), breaking it/them into separate fragments and deviating from the original trajectory (see Fig. 11),

The choice of structural parameters of the cylindrical charge of dynamic protection is determined by the effectiveness of the impact of the energy of the explosion on the high-speed means of damage 9. The structural parameters (see Fig. 5), in turn, affect the speed, length and thickness of the cumulative jet 11, which is formed from the specified charges when they operation At the same time, the maximum shock impact of the cumulative jet 11 of each of the cylindrical charges can be achieved with a radius of the cumulative recess З within 0.333 ... 1.83 of the radius g of the circle of the shell 1 of the charge along its inner surface 4, with a shift 72 of the longitudinal axis of the cumulative recess З on value: 2 - (0.333...1.83) g where g is the radius of the circle of the shell 1 of the charge on its inner surface 4 (see Fig. 5).

In order to achieve the maximum impact on the high-speed weapon 9, it is advisable that the cylindrical charges with the explosive substance 2 are placed inside the case 8 in close proximity to each other, thereby forming a detonation chain and ensuring the transfer of detonation to neighboring charges. The formation of the detonation chain allows, under the condition of sequential activation of the main elongated cylindrical charges, to continuously affect the high-speed weapon 9 with formed cumulative jets 11 (see fig. b - 11). With such an impact on the high-speed weapon 9, its integrity (for example, the cumulative jet 11, see fig. 9 - 11) or its body (see fig. 11) is violated, and the high-speed weapon 9 deviates from its original trajectory.

Structural completeness is ensured by the technological placement of dynamic protection charges in case 8 (container). Structurally, two or more cylindrical charges can be placed in the container 8, for example, seven (as a design option).

The increase in the effectiveness of the claimed dynamic protection charge, compared to the prototype, is achieved due to the fact that the specified dynamic protection charge has a high reliability of activation under the influence of kinetic means of destruction and, thus, has a high ability to protect against high-speed means of destruction. Increasing the effectiveness of the dynamic protection charge is also achieved by the fact that the specified charge is triggered under the influence of self-forming shock-cumulative ammunition. The declared dynamic protection charge is very resistant to the influence of elevated temperatures, which, in turn, determines the high survivability of the places where the blocks of the specified charges are installed on the object of protection.

SOURCES

1. European patent Me 0161390 "Device of additional dynamic protection for ground transport",

IPC E41Н7/04, publ. 25.11.1985. ISM, vol. 101, Me 6, l. 5, 1986. - analogue 2. Patent of Ukraine No. 22154 A "Device for protecting the barrier from projectiles", IPC R41Н5/07, publ. in Bull. Mo. 2 dated 04/30/1998. - a prototype.

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Claims (1)

A dynamic protection charge containing a shell filled with an explosive substance, which is characterized by the fact that the shell of the charge is made in the form of a cylinder, a recess is made on the surface of the shell of the specified charge along its longitudinal axis, said recess is made in the form of a cumulative recess formed by a cylindrical surface with geometric with dimensions of not less than 0.333 and not more than 1.83 of the radius of the circle of the charge shell on the inner surface of the specified shell, the shift of the longitudinal axis of the cumulative notch relative to the longitudinal axis of the charge is made by the amount of 0.333-1.83 of the radius of the circle of the charge shell on its inner surface, on the surface of the specified charge with on the side of the shell with a large radius, a cut is made, which is located perpendicular to the longitudinal axis of the charge, the end parts of the said charge are made with an inclined surface, the said end cut is made at an angle in the range from 0 to 45 degrees, the end cut is made inclined to the side of the said cut on the shell, while on the end parts of the poison fixed caps.