关键词: 兵器科学与技术, 内弹道, 子母弹, 中心抛撒, 活塞

Abstract:

In order to ensure high dispersing velocity of the submunitions in the low overload dispersing environment, a new piston central dispersing mechanism was devised and working process of the dispersing mechanism was researched. The characters of this kind of mechanism were as follows: the trust force from the piston to the submunition was transmitted by the beveled sabot; the powder burned in the highpressure chamber and the generated powder gas did work in the lowpressure chamber; the initial trust peak was reduced, and so on. According to the working principle of the piston central dispersing mechanism, the force analysis of piston, sabot and submunitions were carried out, and the interior ballistics model of the new mechanism was established. It is proved by the simulation calculation that, this new piston central dispersing mechanism not only can supply a dispersing velocity more than 50m/s, but also can control the overload of submunitions under 1000g. The interior ballistics model can be used to guide the design of the new piston central dispersing mechanism.

Key words: ordnance science and technology, interior ballistic, cluster munition, central dispersing, piston