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本文着重分析了“761”主发动机进入“稳态”工况后,喉部烧蚀对其内弹道性能的影响。推导了因烧蚀引起的发动机的压力和推力随时间变化的关系式,并将由该式得到的计算值与试验结果进行了比较和讨论。
This paper focuses on the analysis of the effect of throat ablation on the internal ballistic performance of the “761” main engine after it enters the “steady state” condition. The relationship between the pressure and the thrust force of the engine caused by ablation over time is deduced. The calculated values obtained by this formula are compared with the experimental results.