CN113267098A - High-field-intensity equivalent test system and method for electromagnetic radiation effect of electric initiating explosive device - Google Patents
High-field-intensity equivalent test system and method for electromagnetic radiation effect of electric initiating explosive device Download PDFInfo
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- 239000002360 explosive Substances 0.000 title claims abstract description 129
- 230000000977 initiatory effect Effects 0.000 title claims abstract description 129
- 230000005670 electromagnetic radiation Effects 0.000 title claims abstract description 43
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- 238000012360 testing method Methods 0.000 title claims abstract description 37
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- 238000013178 mathematical model Methods 0.000 claims abstract description 28
- 238000004088 simulation Methods 0.000 claims abstract description 21
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- 238000012935 Averaging Methods 0.000 claims description 9
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
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Abstract
The invention discloses a high field strength equivalent test system and a test method for an electromagnetic radiation effect of an electric initiating explosive device, which comprises the following steps: refitting the foot line of the electric initiating explosive device to enable the foot line to be equivalent to a dipole antenna, and establishing an electric initiating explosive device model in a dipole antenna mode; performing strong electromagnetic field radiation on the electric initiating explosive device in a dipole antenna mode, obtaining a current value on a bridge wire of the electric initiating explosive device through a sensor, and verifying the correctness of the mathematical model in the step 1); establishing an electromagnetic radiation effect model according to the actual condition of the electric initiating explosive device, and obtaining a mathematical model of radiation field intensity and electric initiating explosive device induction current through simulation; injecting different currents into the electric initiating explosive device according to the mathematical model in the step 3) to realize electromagnetic field radiation effects with different field strengths, thereby establishing the bridge wire type high-field strength equivalent test method for the electromagnetic radiation effects of the electric initiating explosive device. The method can provide a test method and a technical means for the electromagnetic safety evaluation of the electric initiating explosive device under the electromagnetic wave radiation with different frequencies and different amplitudes.
Description
Technical Field
The invention relates to the technical field of an electromagnetic radiation test system and method for an electric initiating explosive device, in particular to a high-field-intensity equivalent test system and a test method for an electromagnetic radiation effect of an electric initiating explosive device.
Background
With the increasing complexity of electromagnetic environments in battlefields and the application of various new-technology weaponry, the complex and variable electromagnetic environments not only affect the performance of weaponry, but also seriously threaten the survival of weaponry. Therefore, research on the electromagnetic environmental effect and protection technology of weaponry has become one of the important research subjects for developing military strength in various countries.
The electric initiating explosive device is used as a relay system of various control systems and fire systems of weapon equipment, is a starting energy source and a starting power source of a weapon system, and the safety and the reliability of the electric initiating explosive device directly influence the safety and the reliability of a missile system. The latest US army standards MIL-STD-464C (2010) and MIL-STD-461F (2007) specify the electromagnetic radiation frequency and the field intensity threshold of the weaponry, and the field intensity threshold of some frequency bands is up to kilovolt per meter. In order to solve the test problem of high field intensity, the method for developing a broadband signal source and a high-power amplifier is required to improve the electromagnetic environment level of a test system, and an equivalent test method of high field intensity can be used for carrying out equivalent test on the electric explosion device.
Disclosure of Invention
The invention aims to solve the technical problem of how to provide a test method and a technical means for evaluating the electromagnetic safety of an electric initiating explosive device under the electromagnetic wave radiation with different frequencies and different amplitudes, and the system and the method for the high-field-intensity equivalent test of the electromagnetic radiation effect of the electric initiating explosive device have important significance for improving the safety and the viability of a weapon system under a complex electromagnetic environment.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides an electric initiating explosive device electromagnetic radiation effect high field strength equivalence test system which characterized in that: the electric initiating explosive device comprises a dipole mode, wherein a radio frequency signal source is used for generating radio frequency signals, a signal output end of the radio frequency signal source is connected with a signal input end of a power amplifier, the power amplifier is used for amplifying input radio frequency signals, a signal output end of the power amplifier is connected with a signal input end of an antenna, the antenna is used for radiating the radio frequency signals, the electric initiating explosive device in the dipole mode is fixed on a support, a bridge wire of the electric initiating explosive device is connected with a signal input end of a current testing system through a probe, a signal output end of the current testing system is connected with a signal input end of a data display computer, and current signals received by the electric initiating explosive device in the dipole mode are displayed through the computer.
The further technical scheme is as follows: the dipole-mode electric initiating explosive device comprises two leg wires, wherein one ends of the two leg wires are connected together through a bridge wire, the bridge wire is wrapped by a medicament, and a wiring terminal is formed at the other end of each leg wire.
The further technical scheme is as follows: the length of the leg wire is determined according to the radiation frequency of the electromagnetic wave and is half of the wavelength of the electromagnetic wave.
The further technical scheme is as follows: the system further comprises a field strength meter for testing the strength of the electromagnetic radiation field.
The invention also discloses a high-field-intensity equivalent test method for the electromagnetic radiation effect of the electric initiating explosive device, which is characterized by comprising the following steps of:
1) modifying a leg wire of the electric initiating explosive device to be equivalent to a dipole antenna, establishing an electric initiating explosive device model of a dipole antenna mode, and obtaining a mathematical model of radiation field intensity and electric initiating explosive device induction current through simulation;
2) performing strong electromagnetic field radiation on the electric initiating explosive device in a dipole antenna mode, obtaining a current value on a bridge wire of the electric initiating explosive device through a sensor, and verifying the correctness of the mathematical model in the step 1);
3) establishing an electromagnetic radiation effect model according to the actual condition of the electric initiating explosive device, and obtaining a mathematical model of radiation field intensity and electric initiating explosive device induction current through simulation;
4) injecting different currents into the electric initiating explosive device according to the mathematical model in the step 3) to realize electromagnetic field radiation effects with different field strengths, thereby establishing the bridge wire type high-field strength equivalent test method for the electromagnetic radiation effects of the electric initiating explosive device.
The further technical scheme is that the step 1) specifically comprises the following steps:
modifying the leg wire of the electric initiating explosive device according to the emission frequency of the electromagnetic wave to enable the leg wire to be equivalent to a dipoleAn antenna; in CST simulation software, an electric initiating explosive device model of a dipole antenna mode is established, and the resistance of a bridge wire is replaced by lumped resistance; measuring the current on the bridgewire of the electric initiating explosive device by using a probe through setting different radiation field strengths; will be firstnRadiation field intensity of sub-simulation resultE n-CST-O And the corresponding induced currentI n-CST-O Carry out the comparison to obtainnSub-simulated proportionality coefficientk n-CST-O (ii) a Averaging the proportional coefficients obtained each time to obtain the proportional coefficientk CST-O (ii) a Establishing radiation field intensityE CST-O Induction current to electric initiating explosive deviceI CST-O The mathematical model of (2):
。
the further technical scheme is that the step 2) specifically comprises the following steps:
placing the electric initiating explosive device in a dipole antenna mode in an open field, selecting the radiation field intensity set in simulation, and carrying out a strong electromagnetic field radiation test on the electric initiating explosive device in the dipole antenna mode; will be provided withnRadiation field intensity of secondary test resultE n-T-O And the corresponding induced currentI n-T-O Carry out the comparison to obtainnProportionality coefficient of sub-test
k n-T-O (ii) a Averaging the proportional coefficients obtained each time to obtain the proportional coefficientsk T-O According to the experimental proportionality coefficientk n-T-O To evaluate the simulation scale factork CST-O The accuracy of (2).
The further technical scheme is that the step 3) specifically comprises the following steps:
establishing a model in CST software according to the actual structure of the electric initiating explosive device, and measuring the current on a bridge wire of the electric initiating explosive device by a probe by setting different radiation field intensities; will be firstnRadiation field intensity of sub-simulation resultE n-CST And the corresponding induced currentI n-CST Carrying out a phaseTo obtain the firstnSub-simulated proportionality coefficientk n-CST (ii) a Averaging the proportional coefficients obtained each time to obtain the proportional coefficientk CST-O (ii) a Establishing radiation field intensityE CST Induction current to electric initiating explosive deviceI CST The mathematical model of (2):
。
the further technical scheme is that the step 4) specifically comprises the following steps:
radiation intensity according to the electric initiating explosive deviceE CST Induction current to electric initiating explosive deviceI CST The corresponding induced current is calculated by the mathematical model of (2); injecting the same current into the electric initiating explosive device to realize electromagnetic field radiation effects with different field strengths, thereby establishing a bridge wire type high-field strength equivalent test method for the electromagnetic radiation effects of the electric initiating explosive device.
The further technical scheme is as follows: the established equivalent mathematical model of the electromagnetic radiation effect of the electric initiating explosive device can calculate the induced current on the electric initiating explosive device according to the given random radiation field intensity, and inject the same current into the electric initiating explosive device, thereby realizing the electromagnetic radiation effect with different field intensities.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the system and the method can provide a test method and a technical means for the electromagnetic safety evaluation of the electric initiating explosive device under the electromagnetic wave radiation with different frequencies and different amplitudes, and have important significance for improving the safety and the viability of a weapon system under the complex electromagnetic environment.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic diagram of a test system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a dipole mode electric initiating explosive device in a test system according to an embodiment of the present invention;
FIG. 3 is a flow chart of the experimental method described in the examples of the present invention;
FIG. 4 is a diagram of a simulation model of an electric initiating explosive device with a dipole antenna pattern according to an embodiment of the invention;
wherein: 1-medicament, 2-bridgewire, 3-pin wire, 4-radio frequency signal source, 5-power amplifier, 6-antenna, 7-bracket, 8-dipole antenna mode electric initiating explosive device, 9-field intensity meter, 10-current testing system and 11-data display computer.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1, the embodiment of the invention discloses a high-field-intensity equivalent test system for an electromagnetic radiation effect of an electric initiating explosive device, which comprises an electric initiating explosive device 8 in a dipole mode, wherein a radio frequency signal source 4 is used for generating a radio frequency signal, a signal output end of the radio frequency signal source is connected with a signal input end of a power amplifier 5, and the power amplifier 5 is used for amplifying an input radio frequency signal; the signal output end of the power amplifier 5 is connected with the signal input end of the antenna 6, the antenna 6 is used for carrying out radiation processing on radio-frequency signals, the electric initiating explosive device 8 in the dipole mode is fixed on the support 7, the bridge wire 2 of the electric initiating explosive device is connected with the signal input end of the current testing system 10 through a probe, the signal output end of the current testing system 10 is connected with the signal input end of the data display computer 11, current signals received by the electric initiating explosive device 8 in the dipole mode are displayed through the computer, the field strength meter 9 is arranged close to the electric initiating explosive device 8 in the dipole mode, and the field strength meter 9 is used for testing the strength of an electromagnetic radiation field.
Further, as shown in fig. 2, the electric initiating explosive device 8 of the dipole mode includes two leg wires 3, one ends of the two leg wires 3 are connected together by a bridge wire 2, the bridge wire 2 is wrapped by a chemical 1, and the other ends of the leg wires 3 are formed with terminals. Further, the length of the leg wire 3 is determined according to the radiation frequency of the electromagnetic wave, and is half of the wavelength of the electromagnetic wave.
As shown in fig. 3, the invention also discloses a high field strength equivalent test method for the electromagnetic radiation effect of the electric initiating explosive device, which comprises the following steps:
1) modifying the leg wire 3 of the electric initiating explosive device to be equivalent to a dipole antenna, establishing an electric initiating explosive device model of a dipole antenna mode, and obtaining a mathematical model of radiation field intensity and electric initiating explosive device induction current through simulation as shown in figure 4;
2) performing strong electromagnetic field radiation on the electric initiating explosive device in a dipole antenna mode, obtaining a current value on a bridge wire of the electric initiating explosive device through a sensor, and verifying the correctness of the mathematical model in the step 1);
3) establishing an electromagnetic radiation effect model according to the actual condition of the electric initiating explosive device, and obtaining a mathematical model of radiation field intensity and electric initiating explosive device induction current through simulation;
4) injecting different currents into the electric initiating explosive device according to the mathematical model in the step 3) to realize electromagnetic field radiation effects with different field strengths, thereby establishing the bridge wire type high-field strength equivalent test method for the electromagnetic radiation effects of the electric initiating explosive device.
The step 1) specifically comprises the following steps:
according to the electromagnetic wave emission frequency, the leg wire 3 of the electric initiating explosive device is modified to be equivalent to a dipole antenna; in CST simulation software, an electric initiating explosive device model of a dipole antenna mode is established, and the resistance of the bridge wire 2 is replaced by lumped resistance; measuring the current on the bridgewire of the electric initiating explosive device by using a probe through setting different radiation field strengths; will be firstnRadiation field intensity of sub-simulation resultE n-CST-O And the corresponding induced currentI n-CST-O Carry out the comparison to obtainnSub-simulated proportionality coefficientk n-CST-O (ii) a Averaging the proportional coefficients obtained each time to obtain the proportional coefficientk CST-O (ii) a Establishing radiation field intensityE CST-O Induction current to electric initiating explosive deviceI CST-O The mathematical model of (2):
。
the step 2) specifically comprises the following steps:
placing the electric initiating explosive device in a dipole antenna mode in an open field, selecting the radiation field intensity set in simulation, and carrying out a strong electromagnetic field radiation test on the electric initiating explosive device in the dipole antenna mode; will be provided withnRadiation field intensity of secondary test resultE n-T-O And the corresponding induced currentI n-T-O Carry out the comparison to obtainnProportionality coefficient of sub-test
k n-T-O (ii) a Averaging the proportional coefficients obtained each time to obtain the proportional coefficientsk T-O According to the experimental proportionality coefficientk n-T-O To evaluate the simulation scale factork CST-O The accuracy of (2).
The step 3) specifically comprises the following steps:
establishing a model in CST software according to the actual structure of the electric initiating explosive device, and measuring the current on a bridge wire of the electric initiating explosive device by a probe by setting different radiation field intensities; will be firstnRadiation field intensity of sub-simulation resultE n-CST And the corresponding induced currentI n-CST Carry out the comparison to obtainnSub-simulated proportionality coefficientk n-CST (ii) a Averaging the proportional coefficients obtained each time to obtain the proportional coefficientk CST-O (ii) a Establishing radiation field intensityE CST Induction current to electric initiating explosive deviceI CST The mathematical model of (2):
。
the step 4) specifically comprises the following steps:
radiation intensity according to the electric initiating explosive deviceE CST Induction current to electric initiating explosive deviceI CST The corresponding induced current is calculated by the mathematical model of (2); injecting the same current into the electric initiating explosive device to realize electromagnetic field radiation effects with different field strengths, thereby establishing a bridge wire type high-field strength equivalent test method for the electromagnetic radiation effects of the electric initiating explosive device.
According to the system and the method, the electromagnetic radiation effect equivalent test is carried out on the electric initiating explosive device in the dipole antenna mode, so that the accuracy of a simulation result is verified, and uncertainty analysis is provided for an electric initiating explosive device electromagnetic radiation effect equivalent mathematical model established in an actual mode. The established equivalent mathematical model of the electromagnetic radiation effect of the electric initiating explosive device can calculate the induced current on the electric initiating explosive device according to the given random radiation field intensity, and inject the same current into the electric initiating explosive device, thereby realizing the electromagnetic radiation effect with different field intensities.
Claims (10)
1. The utility model provides an electric initiating explosive device electromagnetic radiation effect high field strength equivalence test system which characterized in that: an electric initiating explosive device (8) comprising a dipole mode, a radio frequency signal source (4) for generating a radio frequency signal, the signal output end of the radio frequency signal source is connected with the signal input end of the power amplifier (5), the power amplifier (5) is used for amplifying an input radio frequency signal, the signal output end of the power amplifier (5) is connected with the signal input end of the antenna (6), the antenna (6) is used for carrying out radiation processing on radio frequency signals, the electric initiating explosive device (8) in the dipole mode is fixed on the bracket (7), and the bridgewire (2) of the electric initiating explosive device is connected with the signal input end of the current test system (10) through a probe, the signal output end of the current testing system (10) is connected with the signal input end of a data display computer (11), and the current signal received by the electric initiating explosive device (8) in the dipole mode is displayed by the computer.
2. The high-field-strength equivalent test system for electromagnetic radiation effects of electric initiating explosive devices according to claim 1, wherein: the electric initiating explosive device (8) of dipole mode includes two leg wires (3), and two the one end of leg wire (3) is passed through bridging filament (2) and is linked together, and bridging filament (2) carry out the parcel through medicament (1), the other end of leg wire (3) is formed with the wiring end.
3. The high-field-strength equivalent test system for electromagnetic radiation effects of electric initiating explosive devices according to claim 2, wherein: the length of the leg wire (3) is determined according to the radiation frequency of the electromagnetic wave and is half of the wavelength of the electromagnetic wave.
4. The high-field-strength equivalent test system for electromagnetic radiation effects of electric initiating explosive devices according to claim 1, wherein: the system further comprises a field strength meter (9), the field strength meter (9) being adapted to test the strength of the electromagnetic radiation field.
5. A high field strength equivalent test method for an electromagnetic radiation effect of an electric initiating explosive device is characterized by comprising the following steps:
1) refitting a foot wire (3) of the electric initiating explosive device to be equivalent to a dipole antenna, establishing an electric initiating explosive device model of a dipole antenna mode, and obtaining a mathematical model of radiation field intensity and electric initiating explosive device induction current through simulation;
2) performing strong electromagnetic field radiation on the electric initiating explosive device in a dipole antenna mode, obtaining a current value on a bridge wire of the electric initiating explosive device through a sensor, and verifying the correctness of the mathematical model in the step 1);
3) establishing an electromagnetic radiation effect model according to the actual condition of the electric initiating explosive device, and obtaining a mathematical model of radiation field intensity and electric initiating explosive device induction current through simulation;
4) injecting different currents into the electric initiating explosive device according to the mathematical model in the step 3) to realize electromagnetic field radiation effects with different field strengths, thereby establishing the bridge wire type high-field strength equivalent test method for the electromagnetic radiation effects of the electric initiating explosive device.
6. The high-field-strength equivalent test method for the electromagnetic radiation effect of the electric initiating explosive device according to claim 5, wherein the step 1) specifically comprises the following steps:
according to the electromagnetic wave emission frequency, a leg wire (3) of the electric initiating explosive device is modified to be equivalent to a dipole antenna; in CST simulation software, an electric initiating explosive device model of a dipole antenna mode is established, and the resistance of the bridge wire (2) is replaced by lumped resistance; measuring the current on the bridgewire of the electric initiating explosive device by using a probe through setting different radiation field strengths; will be firstnRadiation field intensity of sub-simulation resultE n-CST-O And the corresponding induced currentI n-CST-O Carry out the comparison to obtainnSub-simulated proportionality coefficientk n-CST-O (ii) a Averaging the proportional coefficients obtained each time to obtain the proportional coefficientk CST-O (ii) a Establishing radiation field intensityE CST-O Induction current to electric initiating explosive deviceI CST-O The mathematical model of (2):
。
7. the high-field-strength equivalent test method for the electromagnetic radiation effect of the electric initiating explosive device according to claim 5, wherein the step 2) specifically comprises the following steps:
placing the electric initiating explosive device in a dipole antenna mode in an open field, selecting the radiation field intensity set in simulation, and carrying out a strong electromagnetic field radiation test on the electric initiating explosive device in the dipole antenna mode; will be provided withnRadiation field intensity of secondary test resultE n-T-O And the corresponding induced currentI n-T-O Carry out the comparison to obtainnProportionality coefficient of sub-test
k n-T-O (ii) a Averaging the proportional coefficients obtained each time to obtain the proportional coefficientsk T-O According to the experimental proportionality coefficientk n-T-O To evaluate the simulation scale factork CST-O The accuracy of (2).
8. The high-field-strength equivalent test method for the electromagnetic radiation effect of the electric initiating explosive device according to claim 5, wherein the step 3) specifically comprises the following steps:
establishing a model in CST software according to the actual structure of the electric initiating explosive device, and measuring the current on a bridge wire of the electric initiating explosive device by a probe by setting different radiation field intensities; will be firstnRadiation field intensity of sub-simulation resultE n-CST And the corresponding induced currentI n-CST Carry out the comparison to obtainnSub-simulated proportionality coefficientk n-CST (ii) a Averaging the proportional coefficients obtained each time to obtain the proportional coefficientk CST-O (ii) a Establishing radiation field intensityE CST Induction current to electric initiating explosive deviceI CST The mathematical model of (2):
。
9. the high-field-strength equivalent test method for the electromagnetic radiation effect of the electric initiating explosive device according to claim 5, wherein the step 4) specifically comprises the following steps:
radiation intensity according to the electric initiating explosive deviceE CST Induction current to electric initiating explosive deviceI CST The corresponding induced current is calculated by the mathematical model of (2); injecting the same current into the electric initiating explosive device to realize electromagnetic field radiation effects with different field strengths, thereby establishing a bridge wire type high-field strength equivalent test method for the electromagnetic radiation effects of the electric initiating explosive device.
10. The high-field-strength equivalent test method for the electromagnetic radiation effect of the electric initiating explosive device according to claim 5, characterized in that: the established equivalent mathematical model of the electromagnetic radiation effect of the electric initiating explosive device can calculate the induced current on the electric initiating explosive device according to the given random radiation field intensity, and inject the same current into the electric initiating explosive device, thereby realizing the electromagnetic radiation effect with different field intensities.
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| CN113267098B (en) | 2022-07-15 |
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