RU2227893C1 - Cluster warhead - Google Patents

Abstract

FIELD: military equipment, applicable in ammunition, mainly in cluster warheads of shells, mines, bombs, rockets, in which blasting charges are used for ejection of subammunition. SUBSTANCE: the cluster warhead has a body with an indestructible collector installed in its axis. A container with a propelling powder charge is installed inside the collector. War components are arranged row upon row around the collector. Intermediate flanges are positioned on the outer surface of the collector between the rods of laying of the war components. Holes are made on the side surface of the collector, whose total area under each row of the war components is proportional to the square of the required ejection speeds for the given row. A bush with a chamfered end facing inside the collector is installed in each hole of the collector. EFFECT: provided adjustment of the radial ejection speed of the war components from the cluster warhead, provided their uniform dispersion and thus enhanced efficiency of the warhead. 3 dwg

Description

The invention relates to the field of military equipment and can be used in cluster munitions.

A technical solution is known according to US patent No. 4231293 dated 11.26.1977, according to which a system for dispersing ammunition from a compact cylindrical container made of brittle material is protected, inside of which an axial support rod and a plurality of cylindrical ammunition resting around each other mounted around the support rod are installed. In the intervals between the ammunition, around the carrying rod are explosive charges.

A technical solution is known according to the application No. 2646503 dated 04/27/1989, according to which a device is protected for ejecting containers in the radial direction relative to the container carrier, having a detonating charge with its sealing means, located along the device axis along the entire length of the container set, the containers being connected to sealing means by means of holding devices.

The aforementioned technical solutions do not provide for the regulation of the radial dispersion of submunitions (ejection at different speeds), which does not allow them to disperse uniformly over a given area with optimal density to ensure maximum combat effectiveness of the cartridge carrier.

Known design KBCH on the application for the invention of the Russian Federation №2000120292 from 07.28.2000, with a decision on the grant of a patent dated 03/14/2002, containing a housing located on its axis perforated collector with a propelling charge. On the outer surface of the collector, combat elements (BEs) are tightly stacked in rows. The holes in the collector, which gas-dynamically connect the internal cavity of the collector and the surfaces of the BEs laid on it, are made under each row of BEs with a different total area.

The indicated design of the CBF in terms of technical nature, the number of matching features and the achieved result is the closest analogue and adopted as a prototype.

The technical result to which the claimed invention is directed is:

- to increase the efficiency of the BCF due to the regulation (increase in the degree of distribution) of BEs according to emission rates;

- to increase the reliability of operation of the CBF due to the guaranteed flow of the combustion products of the powder through the holes of the collector.

The specified technical result is achieved by the fact that in the proposed technical solution:

- the total area of the perforation holes in the collector under each row of BEs is proportional to the square of the required BE discharge velocity of this row;

- on the outer surface of the collector between the BE rows there are intermediate flanges dividing the CBF region between the collector and the BE (sub-element) along the BE laying length;

- the holes of the collector are equipped with bushings with a beveled end protruding into the collector.

Distinctive features in a stable relationship of the totality of essential features allowed:

- to ensure regulation of the rate of emission of BE from the CBF in accordance with the optimal law, ensuring uniform distribution of the density of BE in the dispersion zone,

- to increase the reliability of the operation of the CBF by increasing the stability of the emission rates.

According to the results of the analysis of the prior art, no analogues have been identified that have features similar to the claimed solution, therefore, it can be considered that the claimed KBC is new and has a sufficient inventive step. Each of the above essential features is necessary, and their combination is sufficient to achieve the novelty of the quality of the new effect, which is not inherent in the signs of their disunity.

The essence of the proposed technical solution is illustrated by the drawings, in which Fig. 1 shows a longitudinal section of a CBF with a five-row stacking of BE, in Fig. 2 is a cross-section along the section AA, in Fig. 3 shows a diagram of the relative distribution of speeds and the distribution of the total area of the holes along the rows of stacking BE .

KBCH contains a housing 1, an indestructible (durable) collector 2 mounted along the axis of the KBCH. A thin-walled container 3 with a propellant powder charge 4 is installed inside the collector. An axial igniter 5 is located along the container axis 5. BEs are arranged in rows around the collector 6. Intermediate flanges are placed on the outside surface of the collector BE on the collector’s outer surface 7. Holes 8 are made on the side surface of the collector, the number and the diameters of which vary along the length of the collector, and the total area of the perforation holes under each row of EBs is proportional to the square of the required ejection velocities for a given row of BEs. A sleeve 9 is installed in each hole of the collector with a beveled end facing the inside of the collector.

KBC works as follows. At a given point in the flight path of the carrier, a propellant powder charge 4 is detonated from the fuse and, under the action of its combustion products flowing through openings 8 of the collector 2, BE 6 receive various radial pulses, as a result of which they are emitted from the CBF with different radial velocities. The shell of the housing 1 of the cassette carrier at the moment of detonation of the propellant powder charge 4 is removed by any of the known methods, for example, products of the explosion of the propellant charge expiring through the gaps between the BE. The high level of pressure of the products of the explosion of the propellant powder charge in the collector determines the independence of the rate of expiration of the combustion products from the collector from the pressure in the sub-element region of the CBF, which is ensured by the critical flow regime at a given pressure ratio inside and outside the collector. In this case, the density of the powder gases and the rate of their outflow through the openings in the collector are the same for all holes (a property of the critical mode of outflow), therefore, the pressure pulse transmitted from the powder gases of the MOH to the BE is proportional to the area of the outflow. Thus, the kinetic energy of the BE, as an integral over time of the pressure pulse, in the first approximation will be proportional to the area of the holes, and the speed of the BE to the square root of the area. Therefore, to ensure a given distribution of BE velocities over echelons (since BEs are symmetrical in each row — their velocities will be the same), the total hole area must be proportional to the required velocities.

The location of the intermediate flanges between the BE stacking rows ensures at the initial stage of acceleration the independence of pressure growth in the sub-element region over the BE rows (uneven distribution of pressure of the products of combustion of the powder charge along the length of the CBF), which is necessary, as was shown above, to provide different BE discharge rates.

The presence in the holes of the collector of bushings with a beveled end facing the inside of the collector ensures the cutting of fragments of the MZ body along the contour of the bushings, which ensures guaranteed opening of all the holes of the collector during the operation of the CBF and, therefore, the stability of the ejection process.

Simultaneously with the EB throwing, the MH gunpowder combustion products flowing out of the collector ensure reliable cocking of the pyrotechnic assemblies of the KBE fuses in all known conditions of use of the CBF and, penetrating through the gaps between the CBB into the supra-element area of the CBF, they provide (or contribute, if an additional opening device is used) opening the compartment body .

Using the proposed technical solution allows you to adjust the radial velocity of the BE emission from the CBF, to ensure uniform dispersion of the BE on the ground, thereby increasing the efficiency of the CBF.

Positive results of field tests have confirmed the operability and reliability of the device.

Claims (1)

A cartridge warhead containing a housing, warheads, propellant powder charge located inside the perforated collector along the axis of the housing, characterized in that the total area of perforation holes in the manifold under each row of warheads is proportional to the square of the ejection velocity of warheads of this series, while on the outside the surface of the collector between the rows of combat elements are intermediate flanges, and each hole of the collector is equipped with a sleeve with a beveled end protruding inside the stake lecturer.

Images