深钝感球扁药发射装药膛内实际燃烧规律

RULES OF COMBUSTION OF DEEP-DETERRED OBLATE SPHERICAL POWDER PROPELLING CHARGE IN THE BORE

应用内弹道势平衡理论研究了深钝感球扁药发射装药膛内实际燃烧规律。密闭爆发器试验揭示了在控制好球扁药的钝感层的厚度及钝感剂在球扁药本体的浓度梯度分布时 ,可实现相对渐增性燃烧。由某大口径火炮射击试验数据的分析给出了深钝感球扁药发射装药势平衡点的位置和该点处的参数值 ;建立了膛内的实际燃气生成函数。结果表明内弹道势平衡理论为研究深钝感球扁药发射装药膛内实际燃烧规律开辟了一个新途径。

Based on the theory of potential equilibrium in interior ballistics, the paperinvestigates the actual rules of combustion of deep-deterred oblate spherical powder (OSP) propelling charge in the bore. Closed bomb tests discover that relative progressivity of burning of OSP can be realized if the total thickness of deterred layer thickness and the deterrent concentration gradient in the propellant are well adjusted. Through data reduction of large-caliber gun shooting tests, the location of the point of potential equilibrium and parameters at the point of potential equilibrium are found. The actual burning gas formation function in the bore is also established. The results show that the theory of potential equilibrium leads a new path for study of the actual rules of combustion of OSP propelling charge within the bore. This investigation can be used a foundation for further studies in finding the interior ballistic solutions of OSP propelling charges corresponding to actual rules of combustion in the bore.