Principle and realizable approach of variable burning rate propellant

According to the interior ballistic performance of guns, a concept of variable-burning rate propellant was put forward, the fundamental principle of this propellant was discussed and the technologic way to realize the principle was explained. In order to realize the variable-burning rate, the propellant has two layers, inner layer's burning rate is higher than the outer layer's. The results show that two-layered variable-burning rate propellant has wishful discharge rule and good properties of progressive combustion. The propellant has the advantages of high energy, universal applicability and high security.