屏蔽复合材料设备舱电磁脉冲屏蔽效能

利用镀镍碳纤维为基础材料,制作了镀镍碳纤维复合材料蒙皮,并辅以玻璃纤维复合材料蒙皮和聚氨酯泡沫以及其他配件制作了全复合材料轻质设备舱。研究了其在核电磁脉冲(HEMP)、间接雷击电磁脉冲(LEMP)下的防护性能。结果表明,基于镀镍碳纤维复合材料的轻质设备舱在上升时间2.8ns、半脉宽24ns脉冲波形下,HEMP屏蔽性能达到50.1dB;在上升时间3.2μs、半脉宽40.3μs脉冲波形下,LEMP屏蔽性能达到57.2dB。

Electromagnetic pulse shielding effectiveness of the conductive composites equipment compartment

In this paper, the lightweight equipment compartment of full composites which has anti-electromagnetic pulse effectiveness is made using the nickeled-carbon fiber composites skin which uses nickeled-carbon fiber as basic materials, glass fiber composites skin, polyurethane foam and other fittings. In the meantime, the effectiveness of the equipment compartment under HEMP and LEMP is studied. The testing results show that the HEMP shielding effectiveness can achieve 50.1 dB when its rising time is 2.8 ns and half pulse width of the pulse wave is 24 ns; the HEMP shielding effectiveness can achieve 57.2 dB when its rising time is 3.2 s and half pulse width of the pulse wave is 40.3 s.