基于FTA与BN技术的某点火具安全失效分析

Safety Fault Analysis of Igniter Based on FTA and BN

为提高某辐射式延期点火具的安全性,在对比贝叶斯网络(BN)技术和故障树分析(FTA)技术的基础上,针对火工品系统实际情况,提出了综合利用FTA与BN技术进行火工品安全失效分析的新方法。用此方法对某点火具的安全失效进行了分析,找到了其安全失效原因为延期药密度不均、延期管内壁粘烟火药和报警装置误报,据此制定了相应的解决措施,分析结果与实际吻合较好。

Bayesian networks（BN） and fault tree analysis（FTA） were compared for safety fault analysis. According to the initiator system, a new method that used FTA ＆ BN to perform fault analysis was proposed. The reasons causing safety fault to the igniter with the method were analysized as the non-uniform density of delay powder, the sticking of protechnic charge to the internal wall of delay tube and the failure of alarm device, etc. The corresponding solution was established at end.