电磁加固设计余量可靠度与置信度评估算法分析

An evaluation algorithm for the reliability and confidence of EMP hardening design margin

介绍了系统抗电磁脉冲性能评估的主要任务以及系统抗电磁脉冲加固性能的统计性描述方法,根据评估水平(或目标)的不同,将电磁脉冲试验分为4种类型,在此基础上分析了电磁加固设计余量评估中的随机误差来源,分析了总误差标准偏差的评定方法,介绍了一种设计余量下限估计及其对应可靠度与置信度的评定方法,分析了该方法应用的前提条件,并以某屏蔽舱内电子设备的加固设计余量评估计算为例,说明了算法的使用过程及注意事项。

The primary tasks of EMP (Electromagnetic Pulse) hardening assessment of complex systems are introduced, and the statistical descriptive method of EMP resistant performance of the systems is described in detail. According to the different levels (or purposes) of the assessment, four types of EMP testing are defined as well. Besides, the various sources of random errors in EMP hardening margin evaluation, and the method to estimate the standard deviation of the total error are also analyzed. To estimate the lower-bound of the margin and its Reliability-Confidence,an algorithm is developed and the preconditions for its application are also analyzed. As an application guide for the algorithm, the evaluation on EMP hardening margin of the electronic equipments in a shielded cabin is provided.