复合推进剂弹道特性的配方调节研究(英文)

Formulation Tailoring for Ballistic Properties of Composite Propellants

实验研究了含铝AP/HTPB推进剂的配方,讨论了燃速及压力指数与配方参数的关系。结果表明,推进剂燃速随平均AP粒子直径的增大而降低,但在大直径范围,这种趋势减缓。液体二茂铁催化剂可提高50%的推进剂燃速,而固体氧化铁可提高22%。液体二茂铁催化剂能比固体氧化铁更有效地提高燃速。燃速与压力指数的实验结果同燃烧模型的理论计算结果进行了比较,预估结果与实验数据符合较好。

An aluminized AP/HTPB propellant formulation was experimentally studied, and the effect of formulation parameters i.e. particle size of AP, catalysts on burning rate and pressure exponent were discussed. The results show that the burning rate of propellant decreases with increasing the average AP particle diameter but with large diameters the dependence of burning rate becomes weak. Liquid ferrocene catalyst is more effective to increase the burning rate as compared to solid iron oxide. A 50% rise in burning rate with liquid ferrocene catalyst is observed while 22% rise with solid catalyst. The experimental results of burning rate and pressure exponents were compared with the calculated results of the combustion model. Model predictions and the experimental data are in good agreement.