小型电爆阀性能裕度表征与可靠性评估研究  

Research on Performance Margin Characterization and Reliability Evaluation for Small Pyrovalve

作　　者：邓坤秀[1] 陈栋[1] 徐勇[1] 梁浩[1] DENG Kun-xiu;CHEN Dong;XU Yong;LIANG Hao(Institute of System Engineering,CAEP,Mianyang,621999)

机构地区：[1]中国工程物理研究院总体工程研究所,四川绵阳621999

出　　处：《火工品》2018年第6期19-21,59,共4页Initiators & Pyrotechnics

摘　　要：针对小型电爆阀,提出了一种采用阀芯尾速表征小型电爆阀性能裕度,并基于阀芯尾速统计分析评估其功能可靠性的方法。采用光纤位移干涉仪精确获得阀芯尾速,可避克测量误差过大给工程实际评估带来较大的不确定性。本方法试验样本需求少,使试验评定电爆阀可靠性成为可能,能够有效满足工程需要。Aimed at small pyrovalve,a method was presented for evaluating the reliability of small pyrovalve.Based on the statistical analysis of the plunger's remaining speed,the performance margin was characterized in this paper.The plunger's remaining speed was accurately obtained by the fiber displacement interferometer,which can avoid the large measurement error that brings great uncertainty to the actual engineering evaluation.The low demand of test samples makes it possible to evaluate the reliability of the small pyrovalve by testing and meet the engineering requirement.The Al/MnO2,Al/Mn2O3 and Al/Mn3O4 thermite reaction materials were prepared,and penetration experiments of 3mm thick steel plate were carried out.The reaction rate,enthalpy changes of reaction and TG/DSC synchronous heat analysis of three materials were also studied.

关 键 词：电爆阀 性能裕度 可靠性评估 光纤位移干涉仪 

分 类 号：TJ45[兵器科学与技术—火炮、自动武器与弹药工程]