Rockets Tone Extension Fuze Mechanism Design And Simulation Analysis

The technique of the penetration fuse system for multiple targets is studied in this dissertation, and this fuse will detonate warhead after it penetrate multiple targets. In the background of the modern war, along with the fortified antagonism, multiple targets engagement becomes the main process to attack important fortification protective of the enemy. In order to destroy these multiple targets effectively, the penetrating warhead and fuze are becoming emphasis of weapon development all over the word. So through the application background of penetration fuze of multifunction rocket projectile, the overload characteristics of projectile which penetrates multiple targets is studied in this dissertation. The critical mechanism of fuse system is designed, and simulation analysis is also done.The penetration process of rocket projectile could be simulated realistically with ANSYS/LS-DYNA. The main emulational work is that we simulate projectile to penetrate steel, concrete and clay bag, and then we can get some penetration-time curves of velocity and acceleration for projectile. Environmental force should be analyzed, and we get the theoretic decreasing acceleration of the projectile ultimately.Technical designing of penetration fuse of multifunction rocket projectile is based upon academic parameter which is all from the emulational work. The correctness of assembly mechanism, the reliability of mechanism movement, and the effective of arming are all designed and calculated, especially, springs of self-adjustment firing mechanism in fuse system are designed and calculated detailedly in this dissertation. These springs are key parts of the fuse system.At the same time, kinetic simulations of detonation interrupter and self-adjustment firing mechanism are simulated with ADAMS. We can get reliable time of arming and firing mechanism which is firing after the warhead penetrate targets, and we can also validate that if the kinetic process and sequence of virtual sample machine is accord to the physical sample machine, and optimize the fuse system. In addition, we did the fall test, initiating safety test and explosion completeness test for the physical sample machine of fuse.