中文摘要：

采用基于有限积分方法的电磁仿真软件CST-MWS建立电磁脉冲辐照条件下材料屏蔽效能测试模型，提出脉冲峰值屏蔽效能和脉冲能量屏蔽效能两个方案来评价材料屏蔽能力，并通过仿真分析了电磁脉冲上升时间和脉宽对屏蔽效能的影响。结果表明，脉冲上升时间相对于脉宽对屏蔽效能的影响较大，上升时间越短，屏蔽效能越高，峰值屏蔽效能高于能量屏蔽效能；脉宽对于材料的峰值屏蔽效能基本没有影响，能量屏蔽效能随着脉宽的增大而减小。

英文摘要：

With the electromagnetic software CST based on the finite integral, a shielding effectiveness （SE） test model on electromagnetic pulse （EMP） is presented. Peak value SE and energy SE are put forward to evaluate the shielding ability of materials. The effects of rise time and pulse width of EMP on the SE are analyzed with simulation. The results show that rise time of EMP has more effects on the SE than the pulse width, the SE gets higher with shorter of the rise time. The peak value SE is higher than energy SE; Pulse width has little effect on the peak SE, energy SE becomes little with the bigger of pulse width.