点火具电磁安全性评估  

Electromagnetic Safety Assessment of Electro Explosive Device

作　　者：王添文 陈晓微 吴超[2] 赵少琼 赵炜铭 薛峰 Wang Tianwen;Chen Xiaowei;Wu Chao

机构地区：[1]中国兵器工业新技术推广研究所 [2]西安现代控制技术研究所

出　　处：《安全与电磁兼容》2021年第4期75-78,共4页Safety & EMC

摘　　要：为了评估发动机点火具在现用平台射频电磁环境作用下,是否存在意外点火以及是否需要适应性改进,基于现有标准规定的外部射频电磁环境和辐射敏感度试验,分析了发动机点火具满足安全裕度对发动机壳体屏蔽性能的要求,并通过屏蔽性能仿真评估了点火具的电磁安全性。结果表明,现有的发动机结构模型不能满足GJB 1389A-2005规定的16.5 dB安全裕度的要求。改进后的发动机模型在后端设置了喷堵,可以满足安全裕度的要求。In order to evaluate whether there is accidental ignition of a certain type of electro explosive device(EED)under the RF electromagnetic environment of current using platform and whether it needs adaptability improvement,based on the external RF electromagnetic environment and radiation sensitivity test specified in the existing standards,it is analyzed that the engine igniter meets the requirements of safety margin on the shielding performance of engine shell.The electromagnetic safety of the igniter is evaluated by shielding performance simulation.The results show that the existing engine body model can not meet the requirements of 16.5 dB safety margin specified in GJB 1389A-2005.The improved engine model has a spray plug at the rear end,which can meet the requirements of safety margin.

关 键 词：点火具 电磁安全 安全裕度 

分 类 号：TN03[电子电信—物理电子学] V23[航空宇航科学与技术—航空宇航推进理论与工程]