Research On Integration Of MEMS Fuze Safety System And Micro-Detonation Sequence

The application of MEMS technology is a necessary condition to realize the intelligence,miniaturization and universality of modern weapons.It has the advantages of low cost,low power consumption,small structure and high system integration.According to the integrated design of MEMS safety system and micro-detonation sequence fuze,the comprehensive methods including theoretical analysis,numerical simulation and experiment are applied to study the MEMS safety system and micro-detonation sequence respectively,and then the integrated processing is carried out.And the related properties of the integrated technology and the integrated prototype are studied.Fuze as the most critical component of ammunition,the advanced fuze using MEMS security system will have a great impact on the design of future weapons.After introducing the context of the subject,the paper summed up the research actuality of MEMS safety system and micro-detonation sequence respectively.It shows that the design of MEMS safety system and micro-detonation sequence is independent of each other,which makes it difficult to realize mutual compatibility between MEMS safety system and microdetonation sequence,which restricts the practical process of MEMS fuze technology.Propose the necessity of the thesis research topic.Theoretical analysis,numerical simulation and experimental research were putted into effect on the designed MEMS safety system,and force analysis was carried out on the key components such as recoil slider,rotary pin and flameproof plate under the motion state.It can release insurance normally under the environmental excitation of the projectile in ADAMS.The stress analysis of these key parts with ANSYS software shows that they can complete a series of release actions under the allowable stress of the electroforming nickel material.The recoil force and centrifugal force of projectile after launch were simulated by Machette’s hammer test machine and centrifugal testing machine,and the results are consistent with the simulation results.Conduct numerical simulation and experimental research corresponding to the microdetonation sequence used.LS-DYNA software was used to study the initiation of the nacked charge CL-20 of the micro-electric detonator charge in the state of detonation transmission and the state of explosion isolation,and the complete initiation was characterized by the Alpha value of the explosive.The results showed that the micro-detonation sequence could achieve stable detonation transmission and reliable explosion isolation under the corresponding state.The simulation results are verified by the detonation transmission test and flameproof test,and the reliability is fully proved.The integration of the MEMS safety system and micro-detonation sequence is studied.The elementary prototype of the MEMS safety system made by UV-LIGA technology is encapsulated.CL-20 microcharge was pressed into the encapsulation.And the release insurance results are studied by means of the range test.The research results show that the integrated system is expected to be used in engineering.