摘要
为了提高导弹引信的安全性,采用MEMS加速度计代替传统的冲击闭合器;通过试验测试得出导弹飞行弹道全量程过载值的范围,应用有限元法在LS-DYNA下对导弹撞击薄目标进行瞬态动力学仿真计算,确定MEMS加速度计发火阈值,并对MEMS加速度计方案勤务处理和发射时安全性进行分析,得出导弹勤务处理和发动机正常工作时MEMS加速度计不会产生误动作信号结论;详细介绍了MEMS加速度计设计方案,并通过冲击试验与飞行试验对MEMS加速度计方案进行了验证,得出阈值和时间窗双重条件设计保证引信作用的可靠性,导弹飞行过程引信信号输出正常,碰撞目标时MEMS加速度计输出正常,该MEMS加速度计作为触发发火部件满足引信设计的安全性、可靠性要求。
Most of the portable missiles in active use use impact closers as trigger parts,while the impact closer and other switches use mechanical structure,and the machining accuracy is not high,which may lead to the early burst of projectiles.In order to improve the safety of missile fuze,this paper uses the MEMS accelerometer to replace the traditional impact closure device.The flight range ballistic missile overload value through the test,using the finite element method in the LS-DYNA of the missile hit the thin target transient dynamics simulation of MEMS accelerometer ignition threshold,and plan to launch MEMS service management and an analysis of the acceleration time,that the normal work of missile and engine service processing when the MEMS accelerometer can not generate misoperation signal conclusion.Details of the MEMS accelerometer design,and through the impact test and flight test of the MEMS accelerometer was verified,and the design of double threshold and time window conditions was got to ensure the reliability of fuze,and a missile fuze signal output normal collision target MEMS accelerometer output.The results show that the MEMS accelerometer as the trigger ignition components meet the requirements for security and reliability of the fuze design.
作者
范卫民
刘双杰
王丽爽
刘洪涛
赵忠海
史英智
FAN Weimin;LIU Shuangjie;WANG Lishuang;LIU Hongtao;ZHAO Zhonghai;SHI Yingzhi(School of Equipment Engineering,ShenYang Ligong University,Shenyang 110000,China;Liaoning Huaxing Electromechanical Co.,Ltd.,Jinzhou 121017,China)
出处
《兵器装备工程学报》
CAS
北大核心
2018年第3期75-82,共8页
Journal of Ordnance Equipment Engineering
