| 摘要: |
| 应用高压燃速测试、微热电偶测温及燃烧火焰单幅摄影等技术,研究了NEPE推进剂的高压燃烧特性与燃烧机理。实验结果表明:NEPE推进剂高压压强指数出现拐点;且随压强以及AP含量升高,燃烧波由硝胺-CMDB向AP-CMDB推进剂转变。分析认为硝酸酯基的含量及AP单元推进剂的扩散火焰是控制NEPE推进剂燃速及压强指数的主要因素。 |
| 关键词: 固体推进剂 高压燃烧+ 燃速 压强指数+ |
| DOI： |
| 分类号:V512 |
| 基金项目:国防科技重点实验室基金(51455030204HT4202) |
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| Study on combustion characteristics of NEPE propellant at high pressure |
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ZHANG Xiao-ping1,2, LI Bao-xuan1, WANG Yue2, GUO Xiang2
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1.Coll.of Astronautics,Northwestern Polytechnical Univ.,Xi′an 710072,China;2.Hubei Inst.of Aerospace Chemotechnology,Xiangfan 441003,China
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| Abstract: |
| The combustion characteristics of NEPE propellants were studied in detail by measuring flame structure,combustion waves and SEM,et al.It was showed that pressure exponent of NEPE propellant had a inflection point at high pressure.The model of combustion process of NEPE propellant is transferred from nitramine-CMDB propellant type to AP-CMDB propellant type with the increase of combustion pressure and the content of AP.The content of nitrate ester group,and the diffusion progress of AP monopropellant flame in gas-phase were significant manipulative factors in controlling the inherent burning rate and pressure exponent of NEPE propellants. |
| Key words: Solid propellant High pressure combustion+ Burning rate Pressure exponent+ |
