A new-type multifunctional small caliber projectile and self-powered ignition features under impact load

Abstract

The new-type projectile with the penetration and arson function has been playing an important role in modern warfare increasingly with new technique development. A new-type multiple-function small caliber projectile with a self-powered ignition system was designed. The miniaturization design of the self-powered ignition system greatly reduces the size of projectile. The ignition process, ignition energy, and ignition delay time of the self-powered ignition system were analyzed by experiment and finite element simulation. The effects of impact velocity and the mass of the mass block on ignition energy were analyzed. The results show that the self-powered ignition system can ignite stably when the impact velocity is higher than 51 m/s and the mass block is 4 g. The slope of the output energy curve decreases with the increase of the mass blocks; the output energy increases first and then decreases with the increase of impact velocity. According to the critical ignition experimental curve, the appropriate mass block is selected to make the self-powered ignition system ignite stably, and the ignition delay is related to impact velocity, and the higher the impact velocity is, the shorter the ignition delay is under the condition of given mass block.