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采用靶线法和单幅放大彩色摄影法分别测试了推进剂的燃速和火焰结构,研究了黑索今(RDX)、奥克托金(HMX)和高氯酸铵(AP)等高能填料的种类、粒度及其复配对星型聚叠氮缩水甘油醚(S-GAP)推进剂燃速、压强指数和火焰结构的影响。结果表明,以AP为填料的S-GAP推进剂的燃烧剧烈程度明显强于RDX和HMX基推进剂,AP基S-GAP推进剂的燃速明显高于RDX和HMX基GAP推进剂,尤其是细粒度AP可大幅度提高S-GAP推进剂的燃速;RDX或HMX与AP复配后,在一定程度上可降低S-GAP推进剂2～20MPa压强的压强指数。
The burning rate and flame structure of the propellants were tested respectively by the target line method and the single magnified color photography method. High energy filler such as RDX, HMX and AP were studied. The effects of the type, particle size and their compounding on the burning rate, pressure index and flame structure of star poly azide-glycidyl ether (S-GAP) propellant were investigated. The results showed that the combustion severity of AP-based S-GAP propellants was significantly stronger than that of RDX and HMX-based propellants. The burning speed of AP-based S-GAP propellants was significantly higher than RDX and HMX-based GAP propellants, especially The fine-grained AP can greatly improve the burning rate of S-GAP propellant. When RDX or HMX is compounded with AP, the pressure index of S-GAP propellant at 2 ~ 20MPa can be reduced to a certain extent.