引信全电子安全系统安全性研究  

Security system safety research for fully electronic initiators

作　　者：白欣 刘凤丽[1] 郝永平[2] 潘洁 BAI Xin;LIU Fengli;HAO Yongping;PAN Jie(School of Mechanical Engineering,Shenyang Ligong University,Shenyang 110168,China;School of Equipment Engineering,Shenyang Ligong University,Shenyang 110168,China;College of Plant Protection,Shenyang Agricultural University,Shenyang 110065,China)

机构地区：[1]沈阳理工大学机械工程学院,沈阳110168 [2]沈阳理工大学装备工程学院,沈阳110168 [3]沈阳农业大学植物保护学院,沈阳110065

出　　处：《兵器装备工程学报》2024年第11期59-67,共9页Journal of Ordnance Equipment Engineering

摘　　要：为确保全电子引信安全可靠,降低全电子安全系统意外爆炸的风险。针对引信全电子安全系统中环境激励个数对安全失效率的影响进行了简要分析,以3个传感器识别的环境激励作为三级解保电子安全系统的3个环境信号,提出一种全电子安全系统失效率的计算方法。以STM32单片机和FPGA芯片为核心搭建一个全电子安全系统,针对硬件电路设计,分别计算出全电子安全系统在非通电状态、通电状态、1个静态开关闭合、2个静态开关闭合、2个静态开关和1个动态开关均闭合情况下的安全失效率;并对全电子安全系统的控制原理和时序逻辑进行设计,编写设计程序并按照设计思路进行程序设计,对设计结果进行程序仿真。结果表明,以3个传感器识别的环境激励作为三级解保电子安全系统3个环境信号的电子安全系统,在非通电状态下的安全失效率,相对于一般机电、机械安全系统降低了7个数量级;当信噪比为4,时间窗为1/10时,在通电状态下的安全失效率降低了5个数量级。因此,相对一般机电、机械安全系统,以3个传感器识别的环境激励作为三级解保电子安全系统的3个环境信号,所设计的全电子安全系统,其安全失效率小,安全性高。仿真结果表明,程序设计思路满足设计要求。To ensure the safety and reliability of the all-electronic fuze,and to reduce the risk of accidental explosion of the all-electronic safety system,this paper briefly analyzes the impact of the number of environmental stimuli on the safety failure rate in fully electronic security systems.Three sensors are used to identify environmental stimuli as the environmental signals for a three-level redundant electronic security system,and a calculation method of the failure rate of the electronic safety system is proposed.A fully electronic security system with STM32 microcontroller and FPGA chip is built as the core.Combined with the hardware circuit,the safety failure rate of the full electronic safety system is calculated respectively in the non-power state,the power state,one static switch closed,two static switches closed,two static switches,and one dynamic switch closed.The control principle and timing of the electronic safety system are designed.The design program is written and designed according to the design ideas,and the program simulation of the design results is carried out.The results show that the safety failure rate of the electronic safety system with the environmental excitation recognized by three sensors as three environmental signals is reduced by 7 orders of magnitude compared with the general electromechanical and mechanical safety system.When the signal-to-noise ratio is 4 and the time window is 1/10,the safety failure rate in the power-on state can be reduced by 5 orders of magnitude.Therefore,the all-electronic safety system designed with the environmental excitation recognized by three sensors as the three environmental signals of the three-level electronic safety system has low safety failure rate and high safety;The simulation results show that the program design ideas meet the design requirements.

关 键 词：全电子安全系统 环境信号 安全失效率 时序逻辑设计 

分 类 号：TJ434.3[兵器科学与技术—火炮、自动武器与弹药工程]