Depending on its tactic features, the techniques for controlling bore pressure and improving muzzle velocity are analyzed, and the interior ballistics performances, optimization design and two phase numerical simulation of small caliber deterred charge gun are studied and the optimal control model of propellant burning rate law is set up in this dissertation.

Based on references,synthesis methods of insensitive explosive TATB are summarized.

Based on the insensitive principle,cohering principle and the influence of the proportion of ingredient on the safety,a new kind of insensitive explosive is developed with PETN as primary material and with wax,polyisobutylene and black lead as desensitizers and adhesives.

In order to explore new insensitive explosives,composites based on 3-nitro-1,2,4-triazol-5-one(NTO) were reviewed.

A new reaction rate model for simulating the detonation process of the insensitive high explosives;

The shock-to-detonation transition (SDT) of insensitive high explosives (IHE) is researched in this paper.

In order to meet the requirement of insensitive ammunition,the concave-spherical booster pellet and hemispherical booster pellet are designed based on shock initiation theory,and the initiation capacity of the new booster pellet structure is compared with that of the regular cylinder booster pellet.

The origin and importance of insensitive ammunition are expounded and the developing history and the current situation in western countries headed by the United States are introduced.