Effect of Installation Position on Ignition Performance of Ignition Device in Solid Rocket Motor

To realize reliably ignition for a small-scale solid rocket motor(SRM),a aft-ignition manner and a fore-ignition manner were designed and worked in SRM ground tests respectively,and the effect of installation position on ignition performance of ignition device was analyzed.The test result indicated that the aft-ignition manner in which the ignition device was mounted on nozzle closure,was not in favour of igniting for the motor.Compared with the aft-ignition manner,ignition charge mass needed in the fore-ignition manner,in which the ignition device was mounted on forward dome of SRM,was reduced 50%.The ignition performance of fore-ignition manner was increased efficiently and every performance can meet the requirements of the SRM ignition.