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含能材料  2010 

方片状变燃速发射药燃气生成规律理论分析

DOI: 10.3969/j.issn.1006-9941.2010.05.022

Keywords: 应用化学,方片状变燃速发射药,燃气生成规律,燃烧渐增性

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Abstract:

为建立方片状变燃速发射药气体生成猛度Γ与已燃发射药质量分数Ψ的理论表达式,对影响其燃气生成的因素进行理论分析。在几何燃烧定律的条件下,以初始尺寸及内外层燃速比k、密度比y为基本参量,分别建立了方片状变燃速发射药的Ψ-z与Γ-z表达式。通过理论计算,讨论了方片状变燃速发射药的宽厚比β、内外层燃速比k、密度比y以及外层与总弧厚比δ对燃气生成规律的影响。计算表明,适当调节发射药宽厚比δ、内外层燃速比k、密度比y以及外层与总弧厚比δ时,可控制方片状变燃速发射药的能量释放规律。当内外层燃速比增加3倍,气体生成猛度最大值增加约2.6倍。

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