降低火工解锁螺栓分离冲击的技术研究  

Study on the Technology to Low Separation Impact of Pyrotechnic Separator

作　　者：叶耀坤[1] 严楠[1] 

机构地区：[1]北京理工大学机电学院爆炸科学与技术国家重点实验室,北京100081

出　　处：《火工品》2011年第1期13-16,共4页Initiators & Pyrotechnics

基　　金：爆炸科学与技术国家重点实验室重点基金项目资助(YBKT10-04);国家自然科学基金项目资助(10971012)

摘　　要：为了使火工解锁螺栓在分离过程中产生的分离冲击降到最小,对一种典型的火工解锁螺栓工作原理进行分析,确定了影响分离冲击的关键因素为分离部件的质量和起爆器装药量;并通过结构尺寸优化和起爆器装药小量化两种技术途径,分别使分离部件的质量从83g减小到17g,起爆器装药量从45mg减小到35mg。极限承载力与分离冲击试验结果表明:上述两种技术途径使火工解锁螺栓的分离冲量从1.667N·s降低到0.4N·s,分离冲击得到了大幅度降低。In order to minimize the separation impact of pyrotechnic separator, the working principle of a typical pyrotechnic separator was analyzed, the key factors of separation impact were considered to be the weight of separating part and the charge mass of initiator. Through dimension optimal design of the separating part and minimization design of initiator＇s charge mass, the weight of separating part was reduced from 83g to 17g, and the charge mass was reduced from 45mg to 35mg. The tests results of ultimate load capacity and separation impact showed that the separation impulse of optimization pyrotechnic separator was reduced from 1.667N-s to 0.4N.s, which means the two optimization technologies are effective to low separation impact of pyrotechnic separator.

关 键 词：火工解锁螺栓 分离冲击 分离冲量 航天器 

分 类 号：TJ450.2[兵器科学与技术—火炮、自动武器与弹药工程]