变循环发动机对战斗机任务性能影响计算研究

为了研究战斗机任务性能模型的可行性,以战斗机为研究对象,假设其安装变循环发动机,以F-22战斗机机内燃油和带副油箱的任务性能为标准结果,考虑全部的飞行过程,对所建立的模型进行可行性验证。结果表明:计算得到的F-22战斗机内燃油和带副油箱任务性能与文献中的标准结果十分接近,误差分别为0.76%和0.24%;假设的变循环发动机使得加速及超声速飞行等涡喷模式的耗油率降低20%,亚声速巡航航段涡扇模式的耗油率降低25%,变循环发动机能够使战斗机的转场航程增加27.2%,亚声速截击任务剖面的作战半径增加29.1%。本算法具有一定的准确性,可信度较高。

Investigation on Influence of Variety Cycle Engine on Fighter Mission Performance

In order to investigate the feasibility of fighter mission performance model, the variety cycle engine is installed in F-22 fighter hypothetically, makes the mission performance of F-22 fighter with full fuel and drop tank fuel as a standard result, considers all process of flying, and verifies the feasibility of the algorithm. The results show that the calculation result of the fighter mission performance is very proximity with the standard result of literature and the errors are 0.76% and 0.24% respectively. The voyage of ferry flight could increase 27.2% and the campaign radius could increase 29.1% of the subsonic volley mission section when specific fuel consumption of takeoff, acceleration, the supersonic cruise decrease 20% and specific fuel consumption of subsonic cruise decrease 25%. The algorithm has certain accuracy and higher reliability.