发射药等离子体点火与常规点火性能的比较

为研究等离子体点火与传统点火方式在点燃发射药机理方面的主要差别,利用等离子体点火中止燃烧装置,分别在等离子体点火和常规点火(黑火药及2/1樟)条件下,测得了太根药、单基药及硝胺药等发射药的燃烧中止压力-时间曲线.研究了等离子体点火方式下电能的输出曲线和作用过程特点;计算了不同点火方式下的点火能量;分析了发射药的点火方式对点火延迟时间的影响.结果表明,等离子体高能粒子射流的温度、能量、压力及速度等相关参数在喷孔的轴向和径向呈衰减分布.与传统的点火方式相比,等离子体点火方式能在较低的点火能量下缩短点火延迟时间.

Comparison of Plasma and Conventional Ignition Performance of Propellants

To study the differences between plasma and conventional ignition of propellants,the pressure-time curves during interrupted-burning process of different propellants such as triethyeneglycol dinitrate(TEGN),single-base and nitramine propellants ignited by plasma ignitier and conventional igniter(black powder and 2/1 camphor deterred single base propellants) were measured by pressure sensor in interrupted-burning setup.Ignition energy during plasma and conventional ignition process were calculated respective...