Study On Energy Exchange Mechanism Of New Explosive Device

Since the beginning of the 21st century,with the complexity of battlefield environment and the improvement of equipment security,the requirements for the safety of explosive devices in weapon systems are higher and higher.In order to study the energy exchange mechanism of the new type of explosive,a non-contact induction ignition system is designed to conduct experiments on the explosive.Firstly,the circuit module of the induction ignition system is designed according to the explosive energy exchange theory,and then the structure is designed through the analysis and discussion of the main parameters of the induction system and the comparison of parameter experiments.Finally,the overall experimental test of the induction ignition system is carried out to test the explosive energy exchange efficiency.The specific content is as follows:(1)The circuit composition of the induction ignition system is analyzed,and the overall circuit design scheme of the induction ignition system is determined.Through experimental analysis,the relevant influencing factors are analyzed to determine the frequency of 3kHz as the driving circuit.The use of magnetic beads and 0 ohm resistance in the line to solve the problem of single point grounding,effectively avoiding the accumulation of static electricity.Add short circuit protection and overload protection to improve circuit reliability.(2)Through the optimal design of the structure,parameters and windings of the induction ignition system,the optimal parameter ratio of induced current can be determined:the induction effect is the best and the induction voltage is the largest when the medium between the primary and secondary windings is air.(3)The material and thickness of the barrel are contrastively analyzed.The experimental results show that the material of the barrel is 30 CrMnSi and the thickness of the barrel is 2.5mm.When the primary coil is N1 =10 and the secondary coil is N2 =30 turns,the induction effect is obvious,the output characteristic curve is good and the load capacity is strong.(4)The wire diameter of the winding coil is optimized.Matlab software was used to simulate the mutual inductance of the coils.The analysis and test results showed that: due to the size requirements in the overall index,the final wire diameter was chosen as 1mm Leeds line,and the number of coil layers was 2 layers.(5)The overall design of the induction ignition system is analyzed through multi-physical field simulation and field experiments.The results show that the induction ignition system designed in this paper can meet the requirements of the overall indicators,and the energy exchange efficiency of the pyrotechnical products reaches 53.9%,and the ignition is reliable,without any debris generation,so as to ensure the safety of operation and use.