通过数值仿真研究火箭弹非正常着靶条件下弹体结构动力学响应特征,为火箭弹自毁装置启动过载阈值设定提供依据。根据典型杀爆火箭弹结构通过TrueGrid建立有限元分析模型。针对发动机未正常分离全弹着地、发动机正常分离减速伞未及时打开带制导舱战斗部着地两种情况进行数值仿真,获得各种工况下弹体结构的动力学响应特征。研究结果为火箭弹自毁装置启动过载阈值设定提供了依据,研究方法为相关研究提供了参考和借鉴。

Dynamic response of rocket projectile structure with abnormal penetration was analyzed by numerical simulation; the result can provide the basis for the design of the self-destructive threshold of rocket projectile. The finite element analysis model of type rocket projectile structure was built by TrueGrid. In view of two cases which are whole projectile penetration without motor's normal separation or penetration of warhead with guidance cabin and successful motor separation but without deceleration parachute's successful opening, dynamic response of projectile structure was obtained by numerical simulation. The research result provides the basis for the design of the self-destructive threshold of rocket projectile, the research method provides the reference for related research.