双基推进剂火箭排气羽流的微波衰减

本文从电磁波在火箭发动机排气羽流等离子体中的传输特性,分析了电磁波频率、羽流等离子体振荡频率和磁撞频率对电磁波衰减的影响。概略地论述了自由电子密度和碰撞频率的有关理论,分析了一些实验规律,指出了固体推进剂设计与降低电磁波衰减的关系,对研究微波衰减小的固体推进剂设计有一定参考意义。

Microwave Attenuation of the Exhaust Plume for Double-Base Propellant Rockets

This paper studies the effects of electromagnetic wavefrequencies, plasma vibration frequencies and collision frequencies on electromaneticwave attenuation based on transmissive characteristics of electromagnetic wavesin plasma of rocket exhaust plume. The theories related to electron density andcollision frequency of plasma have been briefly discussed. The main factors whicheffect on electron densities and collision frequencies are analysed. The theoreticalanalysis can explain some experimental results and indicate the relationship betweenpropellant composition and microwave attenuation reduction, which is usefulreference for designing low microwave attenuation propellants.