丁羟推进剂激光点火延迟时间研究  

Laser Ignition Delay Time of HTPB Propellants

作　　者：徐浩星[1] 王桂兰[1] 贾淑霞[2] 王华[2] 

机构地区：[1]中国航天科技集团公司四院四十二所,湖北襄樊441003 [2]中国航天科技集团公司四院四十一所,西安710025

出　　处：《固体火箭技术》2000年第1期40-43,共4页Journal of Solid Rocket Technology

基　　金：国防科技重点实验室基金

摘　　要：应用 CO2 激光点火器研究了丁羟推进剂中氧含量、燃速等因素及激光点火热通量与点火延迟时间之间的关系。研究结果表明 :随着丁羟推进剂氧含量、燃速以及点火热通量的增加 ,推进剂的点火延迟时间缩短 ;超细铝粉能明显改善丁羟推进剂的激光点火性能 。The effect of the oxygen content, burning rates of HTPB propellants and the laser radiant flux on the ignition delay time was investigated experimentally with a CO 2 laser ignition apparatus. The results show that the ignition delay time is shortened along with the increase of the oxygen content, burning rate of HTPB propellant and the laser radiant flux. The addition of ultrafine aluminium powder (UFAl) can improve the ignition properties of HTPB propellants significantly and make ignition delay time shortened.

关 键 词：激光点火 点火延迟 燃烧 丁羟推进剂 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]