RU128309U1 - TANK CASSETTE UNLOADED CHARGER "TSNA" WITH AIR AND IMPACT EXPLOSION OF SUBSNARIES - Google Patents

Abstract

1. Tank cluster open shell containing a head cone with a trajectory fuse, a tray with a drop-down stabilizer and a set of fragmentation submunitions located between them, characterized in that the submunitions are made in the form of a circular barrel with a circle in the form of an arc having a center of gravity displaced to the head projectile, and equipped on the rear with a rigid gauge pen stabilizer, the fastening of submunitions with each other is carried out using explosive bolts located along the axis of the projectile, sub fuse the projectile is located in one block with an explosive bolt and can provide both impact and temporary action of the fuse, explosive bolts and sub-projectile fuses are electrically connected to the projectile fuse of the projectile. 2. The projectile according to claim 1, characterized in that the sub-shell is made with a side wall of variable thickness increasing toward the head of the sub-shell, and the front bottom is made with a thickness greater than the thickness of the rear bottom. The projectile according to claim 1, characterized in that the shell of the submunition shell is made with predetermined crushing or with ready-to-use striking elements. The projectile according to claim 1, characterized in that each stabilizer feather consists of a fixed part rigidly fastened to the shell of the projectile and a movable reclining part fixed to the axis, while the inner profile of the fixed part of the pen is made with tight mate with the outer surface of the next sub projectile, and the width of the reclining part increases in the direction of the location of the submunitions from the head to the bottom of the projectile. 5. The projectile according to claim 1, characterized in that the submunition fuse contains end contact

Description

The utility model (PM) relates to ammunition, and more specifically to cluster shells with fragmentation submunitions.

Known open cassette shell [1]. The projectile contains a set of spherical sub-shells having a diameter equal to the caliber of the projectile, and located on an axial rod connecting the head cone to the projectile tray. In the head cone, there is a trajectory fuse and an expelling powder charge of the rod. The submunition is made with an axial channel and an impact fuse located at an angle to the axis of the channel.

At a given point in the trajectory, the trajectory fuse gives an impulse to ignite the expelling charge, as a result of which the head cone is fired with the rod removed from the set of submunitions and the submunitions expand. When submunitions fall on the ground, they undermine with the formation of a fragmentation field.

The projectile has a number of disadvantages:

- a significant amount of axial rod leads to a decrease in the mass of the explosive charge (EX) of the submunition;

- the deformation (bending) of the axial rod in official circulation and during firing is not excluded, which can lead to jamming of submunitions on it;

- the spherical shape of the submunitions leads on the one hand to an unsatisfactory filling of the described projectile volume by the payload; on the other hand, to uneconomical isotropic configuration of the fragmentation field;

- the presence in the submunition of a fuse only with shock does not allow for a highly efficient air gap of shells.

- when the latter is implemented, the absence of a device for breeding sub-shells along the trajectory in the projectile will result in the possibility of destruction of the remaining sub-projectiles flying with it with fragments of the submarine undergoing detonation.

This PM aims to address these shortcomings.

The technical solution consists in the fact that the submunitions are made in the form of a circular barrel with a circle forming in the form of an arc having a center of gravity displaced to the head of the projectile and equipped with an openable feather stabilizer at the rear, while the stabilizer of each submunition is made with its aerodynamic characteristic, the fastening of the submunitions with each other by means of explosive bolts located along the axis of the projectile, the sub-projectile fuse is located in one unit with an explosive bolt with the possibility of both impact and time th action fuse, explosive bolts and fuses subsnaryadov electrically connected to the shock-trajectory projectile fuze; at the same time, the projectile fuse is equipped with a command receiver from the tank’s fire control system and a device that allows various installations to be introduced into the submunition fuses.

Illustrations: figure 1 - tank cluster empty shell; figure 2 - fragmentation submunition; figure 3 - fragmentation-cumulative submunition; figure 4 is a block diagram of a fuse of a submunition; figure 5 - the effect of the projectile on a ground target during the trajectory detonation of submunitions.

The tank cassette shell shown in Fig. 1 contains a set of sub-shells 1 connected by explosive bolts 2, a head cap 3 with a head trajectory-fuse 4, a pan 5 with an attached stabilizer 6. A sub-shell (figure 2) consists of case 7, made in the form of a circular barrel and filled with a charge of explosive (BB) 8, the fuse of the submunition 9 and the stabilizers 10 which are attached to the case and are opened.

It is advisable to execute the sub-shell body with a side wall of variable thickness increasing toward the head of the sub-shell, and to make the front bottom with a thickness greater than the thickness of the rear bottom. This ensures, on the one hand, the forward center of gravity of the submunition and an increase in the aerodynamic stability of the submunition in flight, on the other hand, an increase in the strength of the subunit hull when introduced into dense obstacles. The variable thickness of the side wall with an increase in the direction of the head provides a more rational distribution of the velocity of the fragments along the bottom of the expansion.

The stabilizer of each of the submunitions is made with its aerodynamic characteristic. Each feather consists of two parts: the fixed part 11, rigidly fastened to the body 7 of the submunition, and the movable reclining part 12, mounted on the axis 13. The inner profile 14 of the stationary part of the pen is made with tight coupling with the outer surface of the next submunition. The width f of the reclining part for each submunition has its own value. As a rule, the width increases in the direction of the location of the submunitions from the head to the bottom of the projectile.

The drive otkidaniya moving part of the pen is attached to the explosion bolt (Fig. Not shown).

The upper and middle feathers in figure 2 are shown in the tilted state, the lower one in the folded (initial) state.

The shell of the sub-shell can be made with a given crushing or with ready-made damaging elements. Electrical connection fuses of submunitions with each other and with the main fuse is carried out using contact nodes 15.

Figure 3 shows an embodiment of a cumulative-action submunition. The submunition contains a cumulative funnel 16 and a bottom detonation assembly 17, which is electrically connected with an explosion bolt.

A detailed analysis of the operating conditions of the projectile showed that the optimal number of submunitions is 3 or 4.

A block diagram of a submunition fuse is shown in FIG. Here 15 are the end contact nodes; 18 - power supply; 19 - switch the type of action on the trajectory and impact explosions; 20 - signal generator for detonations; 21 - electric detonator charge explosive; 22 - block countdown; 23 - switch type shock; 24-shock mechanism; 25 - sub-projectile detonator; 26 - safety mechanism; 27 - detonator submunition; 28 - multi-channel electrical conductor.

The shell has a multi-program action. The command to implement this or that type of action is entered before firing into the head fuse through the command receiver, and from it into the sub-projectile fuses. Under the action with the separation of sub-shells, flight time to the separation point is introduced, the type of sub-shell detonation (trajectory or shock), in the first case the time intervals between explosions, in the second - the type of shock undermining - instant or slowed down. It is possible to introduce an installation on the combined action of submunitions, in which part of the submunitions explode along the trajectory, and the rest when they encounter an obstacle.

Under the action of detonating the projectile assembly, the type of detonation is introduced - trajectory or shock, and in the latter case - the type of shock detonation.

Consider the case of firing with the division of submunitions. When a projectile arrives at a separation point, the head fuse gives a command to trigger explosive bolts, as a result of which the head cover and the pan are shot and the submunitions are separated. At the same time, the tilt-away drive of the reclining part of the pen is triggered and the stabilized flight of the submunitions begins. Due to the different aerodynamic drag of the stabilizers, the submunitions diverge along the trajectory. When installing submunition fuses on a trajectory detonation in the target area, a sequential detonation of submunitions occurs with the formation of an elongated lesion zone.

The following is the procedure for calculating the time interval Δt between submunition detonation. A model of a single-band fragmentation field with front and rear meridional angles φ ₁ , φ ₂ and average fragment velocity V _{0 was} adopted. The projectile moves at a height H above the surface of the earth with a speed of V _C (figure 4). The front and rear angles of the field in the dynamics are defined as [2]

,

,

In the absence of dead zones between fields on the ground (f = 0), the required span between submunition explosions is determined by the expression

,

,

where L is the required field length; n is the number of submunitions;

time interval between explosions

Calculation example:

Set by

Calculation Results:

When installed on a shock blast, the operation of the submunitions occurs when they meet the target, in options for instant or delayed blasting. In the latter case, the submunition penetrates the target, for example, an anti-tank helicopter, which provides a full high-explosive effect.

With the combined installation of fuses, part of the submunitions is detonated along the trajectory, and the rest - when they hit the target.

When a projectile fuse is installed on a detonation assembly, a trajectory detonation above the target, instant detonation upon impact on the ground, or a delayed detonation after introduction into a solid obstacle is possible.

The technical result of PM is to increase the effectiveness of tank self-defense against tank dangerous infantry, including in structures, from ground anti-tank equipment and from anti-tank helicopters.

Literature.

1. RU 2400698

2. Odintsov V.A. Designs of shrapnel ammunition. Part II Artillery shells. Publishing House of MSTU. N.E.Bauman, 2002

Claims (8)

1. Tank cluster open shell containing a head cone with a trajectory fuse, a tray with a drop-down stabilizer and a set of fragmentation submunitions located between them, characterized in that the submunitions are made in the form of a circular barrel with a circle in the form of an arc having a center of gravity displaced to the head projectile, and equipped on the rear with a rigid gauge pen stabilizer, the fastening of submunitions with each other is carried out using explosive bolts located along the axis of the projectile, sub fuse the projectile is located in one block with an explosive bolt and can provide both impact and temporary action of the fuse, explosive bolts and sub-projectile fuses are electrically connected to the projectile fuse of the projectile. 2. The projectile according to claim 1, characterized in that the submunition body is made with a side wall of variable thickness increasing towards the head of the submunition, and the front bottom is made with a thickness greater than the thickness of the rear bottom. 3. The shell according to claim 1, characterized in that the shell of the sub-shell is made with predetermined crushing or with ready-to-use striking elements. 4. The projectile according to claim 1, characterized in that each stabilizer feather consists of a fixed part, rigidly fastened to the shell of the projectile, and a movable reclining part, fixed on the axis, while the inner profile of the fixed part of the pen is made with close conjugation with the outer surface of the next submunition, and the width of the reclining part increases in the direction of the arrangement of submunitions from the head to the bottom of the projectile. 5. The projectile according to claim 1, characterized in that the submunition fuse contains end contact nodes, a power supply, an action type switch for trajectory and shock detonations, an explosive signal generator, an explosive bolt charge detonator, a timing unit, an impact type switch, percussion mechanism, subcarrier electric detonator, safety mechanism, subcarrier detonator, multi-channel electrical conductor. 6. The projectile according to claim 1, characterized in that the submunition contains a cumulative funnel. 7. The projectile according to claim 1, characterized in that it contains 3 or 4 submunitions. 8. The projectile according to claim 1, characterized in that the fuses of the submunitions are configured to set for each submunition a different response time after separation of the submunitions, the time interval between the explosions of the submunitions being set as a result of calculation according to the formula:

where H is the height of the trajectory of the projectile above the surface of the earth; V _C is the velocity of the projectile in the region of the target; V ₀ - the average speed of the expansion of fragments; φ ₁ , φ ₂ - respectively, the front and rear meridional angles of a circular fragmentation field in statics.

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