RU2316723C1 - Method for destruction control of tandem warhead and system for its realization - Google Patents

Abstract

FIELD: method and control systems for control of destruction of tandem warheads used in systems of artillery and missile armament.

SUBSTANCE: according to the invention, a preliminary charge of the first and second storage capacitors is performed from the on-board power source via the protective device. The power from the first storage capacitor is fed to the first blasting device after closing of the contacts of the destruction transducer. At the instant of closing of the contacts of the destruction transducer power supply is fed to the circuit of delayer pulse shaping from the preliminarily charged third storage capacitory from the on-board power supply source. The delayed pulse for connection of the second blasting device to the second storage capacitor is shaped. The system has a power source, an on-board bipolar power source is used for the purpose, connected to the first lead of it are the input of the safety device, the first current-limiting element series-connected to the first storage capacitor. The leads of the first storage capacitor are shunted by a circuit constructing of series-connected destruction transducer and the first blasting device. The system has the second current limiting element that is series-connected to the second storage capacitor, whose leads are shunted by a circuit consisting of series-connected second blasting device and an electronic gate, whose control input is connected to the output of the delay circuit. The system has a protective device, whose input is connected to the output of the safety device, and the outputs-to the first and second current-limiting elements. The system has a circuit of series-connected third current-limiting element and the third storage capacitor connected to the second lead of the power source. The system has a device for switching-on the power supply, whose outputs are connected to the inputs of the delay circuit, and the outputs are connected: to the lead of the blasting transducer connected to the first blasting device the second-to the lead of the third storage capacitor connected to the third current-limiting element.

EFFECT: enhanced safety at functioning of the system of destruction of the tandem warhead, enhanced reliability of its functioning and reduced power consumption from the on-board power source.

2 cl, 3 dwg

Description

The present invention relates to a method and systems for controlling the detonation of tandem warheads (warheads) used in artillery and missile systems.

The tandem warhead contains two pyrotechnic charges, the first of which is detonated to destroy the target's defense. With a time delay necessary for the operation of the first charge and the destruction of the defense, the second charge, which serves to destroy the target itself, is undermined.

A known method of controlling the detonation of a tandem warhead, selected as a prototype is the patent of Russia No. 2246095 dated 02.10.05, IPC 7 F42C 11/06. This method consists in pre-charging the first and second storage capacitors from the on-board power source, supplying energy from the first storage capacitor to the first explosive device after closing the contacts of the blast sensor, at the moment of closing the contacts of the blast sensor, they form a start pulse, the front edge of which forms delayed pulse for connecting the second explosive device to the second storage capacitor.

A known control system for the detonation of a tandem warhead, selected as a prototype - Russian patent No. 2246095 dated 02.10.05, IPC 7 F42C 11/06, which implements this method, containing an energy source, safety device, detonation sensor, the first storage capacitor, the first explosive capacitor the device and the second storage capacitor, the conclusions of which are shunted by a chain consisting of a second explosive device and an electronic key connected in series, the control input of which is connected to the output of the delay circuit, two an initiating element and a start pulse generator, and an on-board power source is used as an energy source, which is connected through a safety device to the first terminals of the first and second current-limiting element, the second terminals of which respectively correspond to the first and second storage capacitor, while the first storage capacitor is shunted by a chain, consisting of a series-connected first explosive device and a detonation sensor, the output of the detonation sensor connected to the first explosion device, is connected to the input of the trigger pulse shaper, the output of which is connected to the input of the delay circuit, fed from the second storage capacitor.

The known method and system have a number of disadvantages (the numbering of devices and Fig. Repeats the one adopted in Russian patent No. 2246095 dated 02.10.05, IPC 7 F42C 11/06):

- power delay circuit from the storage capacitor

a) the power supply of the delay circuit from the second storage capacitor leads to an additional voltage drop on the current-limiting element and the undercharging of the storage capacitor, and during the formation of the delay, the power source 1 can be damaged by overload and undermining of the first warhead caused by impact on the target, and the voltage on the storage the capacitor may drop below the minimum supply voltage of the delay circuit or the charge energy will not be enough to trigger the second explosive device 12; when a malfunction occurs in the delay circuit, which leads to an increase in the consumed current, the accumulator capacitor is discharged and the self-destruction of the warhead becomes impossible, provided for a missed target sensor or a malfunction in the second warhead undermining system;

b) it is necessary to ensure the closed state of the key 13 at a supply voltage of the delay circuit in the range from 0 V to the maximum voltage on the storage capacitor, otherwise the charge of the storage capacitor when the safety device is activated will become impossible, and in the worst case, unauthorized operation of the second explosive device 12 will occur, while it is necessary to ensure the open state of the switch 13 when the supply voltage of the delay circuit is in the range from the maximum voltage on the storage condensate D to 0 V at operation delay circuit for triggering a guaranteed second explosive device 12 (the realization of these contradictory requirements without additional power or energy accumulator is impossible);

c) in the case of a bipolar on-board power supply (the circuit shown in Fig. 2), immediately after power is applied, the storage capacitors charge in the circuit: the first output of the first storage capacitor - the first current-limiting element - the second current-limiting element - the second accumulating capacitor - lower (in scheme) the shoulder of the power source is the second output of the first storage capacitor, this reduces the security of the known system, since in this case part of the steps of protection against unauthorized the operation of the second explosive device 12 is excluded, the charge of the first storage capacitor occurs in reverse polarity, which can lead to the start of the pulse shaper launch, which will lead to unauthorized operation of the second explosive device 12;

- trigger pulse shaper 11 according to the circuit shown in Fig. 3, generates a false trigger pulse of the delay circuit when the contact between the battery case wire and the trigger pulse shaper case is lost (when the second warhead 8 and the onboard power supply 1 are undermined at some structural distance there is a need for a detachable connection of the circuits connecting them, and in the presence of vibration, for example during the operation of the rocket propulsion engine, contact bounce may occur in the connectors, causing th a momentary break electrical circuits);

- delay circuit 14 begins to consume energy from the on-board power source immediately after the operation of the safety device 2, whereas in its functional purpose it is used only after closing the contacts of the target sensor when a missile hits the target.

The objective of the present invention is to significantly improve the safety of the operation of the tandem warhead undermining system, increase the reliability of its operation and reduce energy consumption from an onboard power source.

The problem is solved due to the fact that in the method of controlling the detonation of the tandem warhead, which includes pre-charging the first and second storage capacitors from the on-board power source, supplying energy from the first storage capacitor to the first explosive device after closing the contacts of the detonation sensor, generating a delayed pulse for connection the second explosive device to the second storage capacitor, carry out a preliminary charge of the first and second storage con ensatorov through the protective device at the time of detonation sensor circuit contacts provide power to the delayed pulse generating circuit with pre-charged from the onboard power source of the third accumulation capacitor.

The system that implements this method contains an energy source, which is used on-board bipolar power source, the first output of which is connected to the input of the safety device, the first current-limiting element connected in series with the first storage capacitor, the terminals of which are shunted by a circuit consisting of series-connected detonation sensors and a first explosive device, a second current-limiting element connected in series with a second storage capacitor, the conclusions of which are shunted by a circuit consisting of a second explosive device and an electronic key connected in series, the control input of which is connected to the output of the delay circuit. New in the system is that a protective device is introduced, the input of which is connected to the output of the safety device, and the outputs to the first and second current-limiting elements, a circuit is introduced from the third current-limiting element and the third storage capacitor connected in series to the second output of the energy source, and introduced a power-on device, the outputs of which are connected to the inputs of the delay circuit, and the inputs are connected: the first to the output of the detonation sensor connected to the first explosive device ystvom, the second - to a terminal of the third accumulation capacitor is connected to a third current-limiting element.

The invention is illustrated in FIGS. 1, 2 and 3. FIG. 1 shows an example of an electrical circuit of a tandem warhead demolition control system, FIG. 2 shows an example of a protective device, FIG. 3 shows a second warhead demolition control system and an example of a switch-on device power, delay circuit and electronic key.

Figure 1 presents: 1 - an on-board power source, 2 - a safety device, 3 - a protective device, 4 - a control system for undermining the first warhead, 5 - the first current-limiting element, 6 - the first storage capacitor, 7 - the first explosive device, 8 - detonation sensor, 9 - second warhead undermining control system, 10 - second current-limiting element, 11 - second accumulating capacitor, 12 - second explosive device, 13 - power switching device, 14 - third current limiting element, 15 - third accumulating capacitor, 16 - circuit s Derzhko, 17 - an electronic key. Figure 2 shows an example of the implementation of the protective device 3, where R1 is a conventional resistor, VT1 is a transistor with a small reverse collector current, for example, type 2T312. Figure 3 shows the control system for undermining the second warhead 9 and an example embodiment of a power-on device 13, a delay circuit 16 and an electronic key 17, where C1, C2, R1-R17, VD1, VT1-VT6 are conventional radio electronic elements.

A negative terminal of the onboard bipolar power source 1 is connected through a safety device 2, a protective device 3, through a first current-limiting element 5 and a second current-limiting element 10, respectively, a first accumulating capacitor 6 and a second accumulating capacitor 11. A circuit consisting of the terminals of the first accumulating capacitor 6 is connected series-connected detonation sensor 8 and the first explosive device 7. To the terminals of the second storage capacitor 11 is connected a circuit, consisting a drawer from a series-connected second explosive device 12 and an electronic switch 17, the control input of which is connected to the output of the delay circuit 16. A third storage capacitor 15 is connected to the positive output of the on-board bipolar power supply 1 through the third current-limiting element 14. Power is supplied to the power-on device 13 with the third storage capacitor 15. The power terminals of the delay circuit 16 are connected to the outputs of the power-on device 13, the input of which is connected to the first output of the sabot sensor VA 8 relative to the housing power wire.

The on-board power source 1 can be made in the form of a battery, for example, an electrochemical activated by melting an electrolyte. Safety device 2, for example, the device described in Russian patent No. 2199715 dated February 27, 2003 IPC 7 F42B 15/01, current-limiting elements 5 and 10, for example, resistors of type C2-33H, accumulating capacitors 6, 11 and 15, for example capacitors type K53-20, a detonation sensor 8, for example a target contact sensor, explosive devices 7 and 12, for example electric detonators. The current-limiting element 14 can be made in the form of series-connected resistor and diode.

The claimed method is implemented as follows. On the rocket, after activation of the onboard power supply, the protective device prevents the charge of the first and second storage capacitors. This increases the security of the system, as it allows the safety device to fulfill its function of charging the first and second storage capacitors only when the warhead detonation is safe for the starting device and its operator. In this case, the third storage capacitor is freely charged. A safety device, when triggered, for example after launching a rocket and removing it to a safe distance, supplies voltage from the first output of the power source to the input of the protective device. From the input of the protective device, this voltage is supplied to its outputs and charges the first and second storage capacitors. The electronic key is designed in such a way that it opens only when a current or voltage is applied to its control input, and since the delayed pulse generation circuit is de-energized, no signal is sent from its output to the electronic key and therefore, nothing prevents the charge of the second storage capacitor.

At the moment of closing the contacts of the detonation sensor, for example, when a missile touches a target, the power circuits of the delayed pulse formation circuit are connected to the third storage capacitor. At the same time, at the moment of closing the contacts of the detonation sensor, energy is supplied through them from the first storage capacitor to the first explosive device. When it is triggered, the first warhead is undermined, and the onboard power source can be destroyed and the power circuits are shorted, so the delayed pulse formation circuit is powered from the third storage capacitor.

The delayed pulse is fed to the control input of the electronic key, which supplies energy from the second storage capacitor to the second explosive device, which undermines the second warhead. The capacity of the third storage capacitor is selected in such a way as to ensure the operation of the delayed pulse generation circuit and the open state of the electronic key during the time of the complete discharge of the second storage capacitor for maximum use of its energy.

The control system undermining the tandem warhead works as follows. In the initial state, the contacts of the blasting sensor 8 and the safety device 2 are open. After the on-board power supply 1 is activated, the third storage capacitor 15 is charged through the current-limiting element 14. The diode 14.2 prevents the fast discharge of the capacitor 15 in the event of a possible short circuit of the power circuits after the first warhead is activated and the power source is destroyed 1. Transistors VT1 and VT2 of the power supply device 13 ( figure 3) are closed, the voltage from the third storage capacitor 15 is not supplied to the delay circuit 16. The resistors R4 and R5 are used so that the transistor VT1 does not open with a reverse current to llektora VT2 and vice versa. The resistance of the resistor R4 is selected so that at the highest reverse current collector VT1 the voltage drop across it does not exceed the threshold voltage base-emitter of the transistor VT2. Similarly, the resistance of resistor R5 is selected. The base-emitter junction voltage of the transistor VT1 of the protective device 3 (Fig. 2) is zero, since the accumulating capacitor 6 connected to this junction through the resistor R1 and the first current-limiting element 5 is discharged, so the transistor VT1 (Fig. 2) is closed and the charge the first and second storage capacitors do not occur. The diode VD2 (figure 3) prevents the charge of the second storage capacitor 11 through the key 17 and the delay circuit 16.

After the launch of the rocket and its removal to a safe distance, the contacts of the safety device 2 are closed. In this case, the negative potential from the power source 1 is supplied to the input of the protective device 3. The first storage capacitor 6 is charged through the first current-limiting element 5. Through the emitter junction of the transistor VT1 (Fig.2), the current limited by the resistor R1 starts to flow, and the transistor VT1 opens and charges the second storage capacitor 11 through the second current-limiting element 10. In this case, the capacitor C1 (Fig. 3) is charged from the first storage capacitor 6 along the circuit: first explosive device 7, resistor R1, capacitor Torr C1, resistor R2 (3), the body supply wire. Resistor R2 limits the charge current to a level safe for the first explosive device 7. After charging all the above capacitors, the only circuit of the tandem warhead detonation control system that consumes energy from the negative side of the onboard power supply is the base circuit of the transistor VT1 of the protective device 3 (Fig. 2) . In practice, a system that implements the claimed method consumes a current not exceeding one milliampere.

When a rocket touches, for example, a target, the contacts of the blasting sensor 8 are closed and the first explosive device 7 is connected to the first storage capacitor 6. At the same time, the capacitor C1 is discharged (Fig. 3) along the circuit: diode VD1, emitter junction of the transistor VT2, closed contacts of the blasting sensor 8 , resistor R1, which limits the base current of VT2. The transistor VT2 opens, its collector current opens the transistor VT1, the collector current of which keeps the transistor VT2 open. After this, the first warhead is undermined. Resistors R3, R6 limit the current consumed by the power switching device 13 from the third storage capacitor 15. The diode VD1 prevents the closing of the transistor VT2 when the contacts of the undermining sensor 8 are opened.

Through the open transistor VT1, the supply voltage from the second storage capacitor 15 is supplied to the delay circuit 16. The delay circuit 16 shown in FIG. 3 meets the following requirements:

- transients during power up do not lead to premature opening of the electronic key 17;

- provides control of the electronic key 17 in the destruction of the on-board power source and short circuit power circuits.

The delay time is determined by the parameters of the integrating chain R8C2, provided that the resistance of the resistor R9 is much less than the resistance R8. After applying power to the delay circuit, capacitor C2 starts charging. The voltage across capacitor C2 is compared by a comparator made on the differential cascade VT3 VT4, with the reference voltage, which is formed by the divider R12 R13. At the beginning of the charging process of the capacitor C2, the transistor VT3 is closed, and VT4 is open. After a predetermined delay time, the voltage across the capacitor C2 reaches the reference value and the transistors switch. Positive feedback performed on resistors R7, R9, R11, reduces the switching time. The collector current of the transistor VT3 opens the cascade made on VT5, and the electronic key on VT6. The introduction of an intermediate stage on the VT5 transistor and the use of an n-p-n conductivity transistor as an electronic key significantly increases the reliability of the operation of the second warhead undermining system, since the electronic key 17 is controlled when the power supply circuit is shorted after the first warhead is blown. The key 17 is opened by the flowing current, and the open transistor VT5, together with the resistor R16, provides the presence of such a current both during the operation of the on-board power supply, and during a short circuit of the positive and case power circuits. Thus, the second explosive device 12 is connected to the second storage capacitor 11. There is an undermining of the second warhead.

Thus, in the method of controlling the detonation of the tandem warhead due to the fact that the first and second storage capacitors are charged through a protective device, the security is increased due to the fact that a third storage capacitor is introduced to power the delay circuit, reliability is increased due to the fact that the power to the circuit delays are served after the detonation sensor is triggered, power consumption from the onboard power supply is reduced.

The reliability and safety of the proposed tandem warhead demolition control system is confirmed by laboratory bench tests and missile launches.

Claims (2)

1. A method for controlling the detonation of a tandem warhead of a rocket, including pre-charging the first and second storage capacitors from an on-board power source, supplying energy from the first storage capacitor to the first explosive device after closing the contacts of the blasting sensor, generating a delayed pulse to connect the second explosive device to the second storage capacitor, characterized in that the preliminary charge of the first and second storage capacitors is carried out through a shield device, and at the moment of contact closure of the detonation sensor, they supply power to the delayed pulse generation circuit from a third accumulating capacitor previously charged from the on-board power source. 2. A control system for detonating a tandem missile warhead containing an energy source, which uses an onboard bipolar power source, to the first output of which is connected the input of a safety device, the first current-limiting element connected in series with the first storage capacitor, the terminals of which are shunted by a circuit consisting of serially connected detonation sensor and the first explosive device, the second current-limiting element connected in series with the second a a storage capacitor, the conclusions of which are shunted by a circuit consisting of a second explosive device and an electronic key connected in series, the control input of which is connected to the output of the delay circuit, characterized in that a protective device is introduced, the input of which is connected to the output of the safety device, and the outputs to the first and the second current-limiting elements, a chain of series-connected third current-limiting element and a third storage capacitor connected to the second pin there is a power source, a power-on device whose outputs are connected to the inputs of the delay circuit, the first input of the power-on device is connected to the output of the detonation sensor connected to the first explosive device, the second input of the power-on device is connected to the output of the third storage capacitor connected to the third current-limiting element .

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