| 推进剂及其组分的光学性质对点火特性的影响 |
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| 引用本文： | 牛和林,李疏芬,张钢锤,王华,魏剑维,马喜梅. 推进剂及其组分的光学性质对点火特性的影响[J]. 火炸药学报, 2002, 25(3): 44-46 |
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| 作者姓名： | 牛和林 李疏芬 张钢锤 王华 魏剑维 马喜梅 |
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| 作者单位： | 1. 中国科学技术大学化学物理系,安徽,合肥,230026
2. 中国航天科技集团公司四院41所,陕西,西安,710025 |
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| 基金项目： | 国家自然科学基金资助项目(编号:59786005) |
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| 摘 要： | 通过实测的NEPE推进剂在多种热流密度下的点火延迟时间，借助于转化系数，计算获得假设忽略深度吸收的点火延迟时间，其相对误差随着热流密度的增加而显著增大，表明推进剂及其组分的光学性质对点火特性的影响是不能忽略的，且这种影响随着热流的增加而增大，因此，建立推进剂点火模型，在高热流辐射时，必须考虑深度吸收，极限吸收率和建立模型，消除其光学性质的影响提供了依据。
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| 关 键 词： | 光学性质 点火特性 点火延迟时间 转化系数 极限吸收率 NEPE推进剂 |
| 文章编号： | 1007-7812(2002)03-0044-03 |
| 修稿时间： | 2001-07-02 |
The Effect of Optical Properties of Propellants and Their Composition on Ignition Characteristics |
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| NIU He lin,LI Shu fen. The Effect of Optical Properties of Propellants and Their Composition on Ignition Characteristics[J]. Chinese Journal of Explosives & Propellants, 2002, 25(3): 44-46 |
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| Authors: | NIU He lin LI Shu fen |
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| Abstract: | Ignition delay time of NEPE propellant without considering in depth absorption of radiation is obtained using concept of conversion coefficient and ignition delay time of NEPE propellant determined at various igniting heat fluxes. Their relative errors at various igniting heat fluxes are calculated. Relative errors will be significant with the increase of igniting heat fluxes so that in depth absorption of radiation must be considered at relatively high igniting heat fluxes. Minimum absorption coefficient is valuable in whether in depth absorption of radiation should be considered or nor, while constructing ignition model of propellant. |
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| Keywords: | ignition delay time conversion coefficient minimum absorption coefficient |
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