The extending displacement, velocity and acceleration and internal pressure of the actuator of a solid rocket motor (SRM) extendible exit cone (EEC) nozzle were calculated.

• 摘要为获得延伸喷管展开特性参数，根据实际测得的延伸锥展开各种摩擦阻力之和，利用分析力学及数值分析有关理论对延伸喷管进行展开动力学分析与计算。