RU2365863C1 - "zubtsov's" splitter-in-beam projectile - Google Patents

Abstract

FIELD: ammunition.

SUBSTANCE: invention relates to ammunition creating circular and axial hitting fields. Proposed projectile comprises the body accommodating explosive charge. Aforesaid body front part houses one- or multilayer splitter set of finished hitting elements made from steel and tungsten-base alloys. Shape of the said elements allows their dense packing in the said set. The body has a nose cap with trajectory-contact-type nose fuse and pyrotechnical device to separate the nose cap. Finished hitting elements represent convex polygons and have at least two ribs, their dihedral angle making 40 to 75°.

EFFECT: higher penetrating ability.

1 dwg

Description

The invention relates to ammunition, creating two fields of destruction: a circular field of fragments of natural fragmentation of the shell of the shell and the axial field of the finished striking elements (GGE).

Known fragmentation-beam projectile (patent RU 2309374 C2, 10.20.2007 - prototype), comprising a housing with an explosive charge located therein and a fragmentation unit in its front, a head cap with a trajectory-contact type head fuse and a pyrotechnic device for separating the head cap where the fragmentation block is made with single-layer or multi-layer laying of GGE made of steel and other heavy alloys based on tungsten, the shape of which ensures their dense laying in the block.

The implementation of tight packing is associated with certain technological difficulties. The use of arrow-shaped GGEs in the designs of modern fragmentation-beam shells is unacceptable due to the significant deformation of these GGEs in contact explosive loading, therefore, in most known shells, the use of balls, cylinders, cubes, hexagonal prisms or parallelepipeds (US 4882996, 11.28.1999; DE 19648355 A1, 07.15.1999; EP 0918207 A3, 05.26.1999; RU 2300073, 05.27.2007). The main disadvantage of such compact GGE (ball, cube, etc.) is the relatively low ability to penetrate individual protective equipment (PPE), including the most common - tissue PPE. When such a compact GGE strikes a tissue barrier, the fabric threads are tensioned according to the Karman-Rakhmatullin scheme with pulling them from the weft and the warp and forming a “cross” pattern (Explosion Physics / Edited by L.P. Orlenko. T.1. - M. : Fizmatlit, 2002. - P.190), which leads to the rapid dissipation of impact energy along the plane.

The objective of the invention is to increase the effectiveness of the target fragmentation-beam projectile.

The problem is solved due to the fact that in a shell containing a shell with an explosive charge located in it and a fragmentation block in its front, a head cap with a trajectory-contact type head fuse and a pyrotechnic head cap separation device, where the fragmentation block is made with a single-layer or multilayer laying of GGEs made of steel and other heavy alloys based on tungsten, the shape of which ensures their tight packing in the block, GGEs are made in the form of convex polyhedra with at least e two ribs with a dihedral angle with them 40-75 °.

The presence of cutting ribs significantly changes the nature of the interaction of GGE with tissue PPE - the deflection of the tissue package with stretching of the threads is replaced by their cutting, which facilitates the penetration of the GGE into the bag.

The invention is illustrated in figure 1, which shows: a) the general scheme of the projectile; b-e) GGE execution options; g) the cross section of the block GGE. Where:

1 - housing;

2 - stabilizer;

3 - explosive charge;

4 - fragmentation block;

5 - head cap;

6 - trajectory contact fuse;

7 - pyrotechnic charge.

The projectile (figure 1, a) contains a housing 1 with a stabilizer 2, equipped with an explosive charge 3 and a fragmentation unit 4, which is located in its front part. The housing is threaded to the head cap 5, in the front of which there is a remote (trajectory-contact) fuse 6 and a pyrotechnic charge 7 of the cap compartment. The block is made of ready-made striking elements having ribs with cutting angles P. FIG. 1, b-e — GGE versions: FIG. 1, b — direct prism with a base in the form of a parallelogram or rhombus (two cutting ribs); figure 1, in - a direct prism with a base in the form of an isosceles rectangle (one obtuse angle, two cutting ribs); figure 1, g - oblique prism with a triangular base (five cutting ribs); figure 1, d - oblique prism with a rhombic base (six cutting ribs); figure 1, e - plate GGE.

All these configurations provide a tight laying of the GGE in the block. The section of the block is presented in figure 1, g. It has been experimentally shown that in tight packing, the contact load by the explosion of the explosive charge does not lead to a noticeable deformation of the GGE.

Under the action of the projectile, the flight orientation of the GGE, made in the form of convex polyhedra with cutting edges, is random, however, with this design of the GGE, the probability of its approach to the target by the cutting edge increases and, as a result, the breakdown effect increases significantly. In standard PPE tests for anti-fragmentation resistance by firing with a steel ball weighing 1 g (diameter 6.3 mm) on a thirty-layer packet of CBM fabric, there was no penetration at a speed of 520 m / s; when firing the GGE simulator, made according to the scheme shown in Fig. 1, e, penetration was already obtained at a speed of 443 m / s.

A particular case of the solution is the lamellar GGE (Fig. 1, e), assembled in a single-layer block, adjacent with a narrow lateral face to the explosive charge, having cutting ribs on the opposite side and gyroscopically stabilized in flight. The GGE configuration in the plan is made in such a way that the resultant P of the pressure forces of the PD detonation products is applied with eccentricity relative to the center of mass C of the striking element. The created moment tells the element rotation around the center of mass, which ensures gyroscopic stability of flight with a small average frontal area. Two faces of the plate GGE are made with cutting ribs R, which provides a high penetrating effect.

The technical result of the invention is to increase the effectiveness of the tank fragmentation-beam projectile on targets equipped with modern means of personal protection on a fabric basis.

Information sources

1. Patent RU 2309374 C2, 20.10.2007. Prototype.

2. Patent US 4882996, 11/28/1999.

3. Patent DE 19648355 A1, 07.15.1999.

4. Patent EP 0 918 207 A3, 05/26/1999.

5. Patent RU 2300073, 05.27.2007.

6. Explosion Physics / Ed. L.P. Orlenko. T.1. - M .: Fizmatlit, 2002.

Claims (2)

1. A fragmentation-beam projectile containing a body with an explosive charge located in it and with a single-layer or multi-layer fragmentation block of finished striking elements made of steel and tungsten-based alloys, the shape of which ensures their tight packing in the block, a head cap with a traction-contact type head fuse and a pyrotechnic device for separating the head cap, characterized in that the finished striking elements are made in the form of convex polyhedrons in with at least two edges with a dihedral angle with them 40-75 °. 2. The projectile according to claim 1, characterized in that the convex polyhedra are plates made with the possibility of their gyroscopic stabilization in flight and assembled into a single-layer block, in which they are adjacent to the explosive charge with a narrow side face, and on the opposite side are made with cutting ribs.

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