短切碳纤维云团对毫米波/红外复合干扰性能影响

为了研究短切碳纤维云团对毫米波/红外的复合干扰性能,构建了实验测试平台。在静风条件下进行了1.5 mm/4 mm碳纤维爆炸分散实验。研究了爆炸分散云团形成过程。测试并分析了云团对3 mm波、8 mm波和8~14μm红外的干扰性能。结果表明,爆炸方式能够有效分散短切碳纤维。在实验的弹体结构和装填参数条件下能够形成稳定的烟幕云团,呈现优良的毫米波/红外复合干扰性能。对毫米波和红外的最大衰减大于95%。对3 mm波的有效作用时间(单程衰减分贝数≥5.2 d B)不小于1 min,对8 mm波能达到30 s以上,对红外靶标的有效遮蔽时间(衰减率≥85%)大于20 s,碳纤维长度的变化对毫米波干扰性能影响较大。

Composite Interference Performance of Chopped Carbon Fiber Clouds to Millimeter Wave and Infrared

To study the composite interference performance of chopped carbon fiber (CF) clouds to millimeter wave and infrared, the test platform was built.The 1.5 mm and 4 mm CF explosion dispersion experiments were carried out under the static wind condition.The process of forming explosion dispersion clouds was investigated.The interference performance of clouds to 3 mm wave、8 mm wave and 8-14 μm infrared was measured and analyzed.The results show that chopped CF can be effectively dispersed by explosion, and the stable smoke clouds can be formed under the conditions of experimental bomb structure and loading parameters, revealing an excellent composite interference performance to the millimeter wave and infrared.The maximum attenuation to the millimeter wave and infrared is more than 95%.The effective effect time to 3 mm wave(one-way attenuation decibels≥5.2 dB)is not less than 1 min, and the time to 8 mm wave can reach more than 30 s.The effective obscuring time to infrared target (attenuation rate≥85%) is more than 20 s, and the change in CF length has a significant effect on the millimeter wave interference performance.