Contrast with single base gun propellant with polymer coating layer, the two-layered variable-burning rate propellant has good properties of progressive combustion and low temperature coefficient.

与高分子包覆单基发射药相比，双层结构变燃速发射药具有较好的燃烧渐增特性和明显的低温度系数效果。

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A mathematical model of single base propellant column is established, the core temperature and residual energy of single base propellant are calculated by means of numerical simulation and this model.

建立了单基发射药柱热自燃的数学模型，根据模型利用数值模拟的方法计算了单基发射药的中心温度与其剩余能量，并对中心温度的模拟结果与实验结果进行了比较。

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