Internal ballistic calculation of solid rocket motors

Some independent random variables of internal ballistic calculation for solid motor were established. Among them the relation of grain burning area versus web was obtained by analyzing the motor test results and inversely calculating from the p-t curve based on the dimensionless web. According to the internal ballistic foreshowing models of solid rocket motors, the interior ballistic performances were simulated and computed by using Monte-Carlo method. The results show that the computation method is feasible and the data are reliable.