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研究了在缩水甘油叠氮聚醚 (GAP)中添加不同数量HMX的推进剂燃烧机理。在HMX添加量小于 0 .6的范围 ,燃烧表面固相放热量Qs 随HMX添加量的增加而下降 ,燃速降低。在HMX添加量大于 0 .6的范围 ,由于推进剂燃烧表面的固相反应加上GAP与HMX分解气体的气相反应向燃烧表面的热流束增加 ,从而燃烧表面气相的温度梯度 Φ效应增加。当HMX添加量再增加时 ,则决定燃速的因素由固相反应过渡到气相反应。由于Φ增加而燃速进一步增加。
The combustion mechanism of propellants with different amounts of HMX added to glycidyl azide polyether (GAP) was investigated. In the range of HMX addition of less than 0.6, the Qs of the solid surface of the combustion surface decreases with the increase of the amount of HMX, and the burning rate decreases. In the range of HMX loading of more than 0.6, the temperature gradient Φ effect of the combustion surface gas phase increases due to the solid-phase reaction of the propellant burning surface plus the gas-phase reaction of GAP and HMX decomposition gas to the combustion surface. When the amount of HMX added increases, then the factors that determine the rate of combustion transition from the solid-phase reaction to the gas-phase reaction. Burning speed further increases due to the increase of Φ.