摘要
为了找出点火药量对短脉冲推冲器点火过程的影响规律及选择优化匹配的点火药量,选定B/KNO3和黑火药混合物作为点火药,采用模拟试验装置,测量得到不同点火药量情况下的压力-时间曲线。结果表明,随点火药量增大,点火延迟时间由1.48 ms降到1.06 ms,压力上升时间由0.37 ms降到0.16 ms,工作时间在1 ms左右变化。结果表明,增大点火药量可以降低点火延迟时间和压力上升时间。通过与性能目标值比较,选择80 mg点火药为较佳匹配。
In order to find the effect of the ignition composition amount on the short impulsive thruster and select the right ignition composition amount,the simulated test device was used and the p-t curves were obtained. Results show that the ignition delayed time changes from 1.48 ms to 1.06 ms, and the pressure increasing time changes from 0.37 ms to 0.16 ms,and the action time is about 1 ms. It indicates that the ignition delayed time and the pressure increasing time can be shortened if the ignition composition amount is increased. The ignition composition amount of 80 mg is selected to meet the target requirements.
出处
《含能材料》
EI
CAS
CSCD
北大核心
2009年第2期222-224,共3页
Chinese Journal of Energetic Materials
基金
国家安全重大基础研究(513390303)
关键词
爆炸力学
短脉冲推冲器
点火药量
点火性能
explosion mechanics
short impulsive thruster
ignition composition amount
ignition performance
