进口压力畸变对弹用涡喷发动机稳定性的影响

介绍了弹用涡喷发动机稳定性计算的方法。基于平行压气机模型，发展了计算进口压力畸变对弹用涡喷发动机稳定裕度影响的计算程序。以某型号导弹用涡喷发动机为例，计算了在某一评审条件下，不同的进口畸变指数所造成的该涡喷发动机的稳定裕度损失。

Effect of Inlet Pressure Distortion on Stability Margin of Missile Turbojet Engine

The occurrence of surge of missile turbojet engine is disastrous for missile; so ensuring its stability margin to be sufficient is important. Pressure distortion of inlet of turbojet engine has an important effect on its stability margin. We were among the first in China to do simulation research on the effect of inlet pressure distortion on stability of missile turbojet engine. Section 1 developed, according to the model of parallel compressor and Liapunov theory, in some detail the program for computing the effect of inlet pressure distortion on surge and running line of missile turbojet engine. Section 2 gave a numerical example. Figs.2 and 3 give the effect of inlet pressure distortion on surge and running line, and Fig.4 gives the loss of surge margin.