Modification method and detonation ability analysis of mechanical detonation fuze
In order to solve the problem of high failure rate of mechanical detonation fuze,a modification method and arming method of detonation fuze retaining detonation sequence are explored.Autodyn software was used to simulate and analyze the shock wave overpressure of the industrial No.8 detonator exploding in the air.It was found that the air shock wave overpressure decreased significantly within 2 mm from the end face of the detonator.In order to detonate the detonation fuse without retaining the detonation sequence(only containing the booster),the theoretical maximum allowable gap between the end face of the detonator and the booster was about 0.33 mm.The steel concave test was carried out on the two kinds of detonation fuses with and without the detonation sequence,and two kinds of detonation situations without gap and with gap were set up.The test results show that the detonation ability of the two kinds of detonation fuses is equivalent when there is no gap detonation,and the depth of steel concave is 1.80 mm and 2.08 mm respectively.When the initiation gap is 2 mm,the initiation fuze without retaining the detonation sequence is not fully effective,and the surface of the steel plate is not deformed.The initiation fuze with detonation sequence is fully effective,and the steel concave depth is 2.04 mm.The experimental results not only confirm the accuracy of the simulation analysis,but also show that the initiation fuze with detonation sequence is not sensitive to the gap of the end face of the detonator,and has high reliability of detonation transmission.With the arming method,the safety and effectiveness of the mechanical initiation fuze will be significantly improved.
initiating fusedetonation sequencedetonatorshock wave overpressuresteel concave test
万方数据
维普
