Active Interruption of Motor Combustion for Ammonium-Perchlorate Composite Propellant

Most of solid propellants have difficulty in controlling magnitude of their thrust or stopping their operation arbitrarily. Some solid propellants show a unique property of self-quenching in intermediate pressure range. This property could be utilized for the realization of actively controlled solid propellant rocket motor. However, little is known about the mechanism of this self-quenching phenomenon. In this paper, a simulation model of this phenomenon is developed and the simulation results are compared with the experiment results to determine the mechanism of this self-quenching phenomenon. The simulation results are in good agreement with the experiment results by assuming self-quenching phenomenon has stochastic nature and by selecting proper parameters.