基于故障树模型的电台电磁损伤评估方法  

Radio electromagnetic damage assessment method based on fault tree analysis model

作　　者：陈岳承 刘树中 卢治钢 张平[1] CHEN Yuecheng;LIU Shuzhong;LU Zhigang;ZHANG Ping(Unit 32203 of PLA,Weinan 714200,China)

机构地区：[1]中国人民解放军32203部队,陕西渭南714200

出　　处：《现代电子技术》2022年第13期165-168,共4页Modern Electronics Technique

基　　金：试验技术研究重点项目(1700010136)。

摘　　要：为探索电台类装备的电磁易损特性,找到合理的电台电磁易损性评估方法,通过对电台面临的强电磁环境威胁及电台敏感特性分析,结合电台的结构特点,建立电台的故障树模型,提出基于故障树模型的电台电磁损伤评估方法。在分析整系统失效和子系统的关系之后,给出电台各子系统失效概率,完成电台的电磁毁伤评估。其中单元失效概率采用试验方法获取,并给出了试验设计方案和评分分析方法。研究表明,利用故障树分析的方法,通过研究各个部件在强电场下的可靠性,利用与或逻辑关系,将部分与整体联系起来,得出系统的可靠性依据,对掌握电台类装备易损性评估,推算强电磁环境下电台类设备的失效概率具有重要意义。To explore the characteristics of electromagnetic vulnerability of radio equipment and find out a reasonable assessment method for radio electromagnetic vulnerability,the fault tree model of the radio station is established in combination with the structural characteristics of the radio station after analyzing the strong electromagnetic environment threat faced by the radio station and radio sensitivity characteristics.The radio electromagnetic damage evaluation method based on the fault tree model is proposed.The relationship between the whole system failure and the subsystem is analyzed to get the failure probability of each subsystem of the station and complete its electromagnetic damage assessment.The unit failure probability is obtained by the test method.The design scheme of the test and scoring analysis method is given.By the method of fault tree analysis(FTA),the reliability of each component under strong electric field is studied,and the part is connected with the whole by conjunction and disjunction logic relationship to obtain the reliability basis of the system.The research shows that the above is of great significance to master the vulnerability assessment of radio equipment and calculate the failure probability of radio equipment under the strong magnetic environment.

关 键 词：故障树 电台 电磁损伤 强电磁场 耦合 失效概率 易损性评估 

分 类 号：TN97-34[电子电信—信号与信息处理] TN03[电子电信—信息与通信工程]