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随着巡航导弹的作战空域和飞行速度的不断增大,对液体亚燃冲压发动机的性能要求越来越高,亟待对冲压发动机性能的影响因素进行分析研究。通过对液体亚燃冲压发动机的工作过程进行详细的分析研究,编制了冲压发动机性能计算软件,利用该软件分析冲压发动机的各个关键组合件,如进气道、燃烧室、尾喷管以及燃油供应系统等各个组合件的性能对冲压发动机的推力和比冲性能影响程度的大小,以抓住影响发动机性能的主要因素,确定对发动机性能影响最直接的关键组件。计算分析结果表明,对冲压发动机性能影响最直接的因素是可调喷管的冲量效率,对冲压发动机的性能影响也是最大的。此外,涡轮的取气量、燃烧室的燃烧效率对发动机性能的影响也较大。
With the increasing airspace and flight speed of cruise missiles, the performance requirements of liquid sub-ram ram ramification engines are getting higher and higher. It is urgent to analyze the influencing factors of ramjet performance. Through the detailed analysis of the working process of liquid sub-combustion ramjet engine, ramjet engine performance calculation software has been compiled, which can be used to analyze the key components of ramjet engine such as intake port, combustion chamber, tail nozzle and fuel supply System and other components of the performance of the thrust of the ramjet engine and the impact of the specific impact of the size of the size of the engine to seize the main factors that affect the performance of the engine to determine the most direct impact on engine performance of the key components. The calculation and analysis results show that the most direct factor affecting the performance of the ramjet engine is the impulse efficiency of the adjustable nozzle, which also has the greatest impact on the performance of the ramjet engine. In addition, the amount of gas turbine, the combustion chamber combustion efficiency of the engine performance is also greater.