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为评估和优化发动机防喘系统的效能,采用温度畸变发生器作为逼喘装置,分别给出了某涡扇、涡喷发动机扩稳构件在不同组合方案下的试验结果.比较和讨论了防喘系统不同扩稳构件的扩稳效果.试验结果表明:发动机防喘系统扩稳效果最为显著的是采用短时切断燃油以及导叶、放气等调节手段,但其缺点会带来较大的推力损失和系统的复杂性;而采用切油加导叶调节的手段尽管扩稳效果不如前者明显,但其推力损失较小且系统易于实现.
In order to evaluate and optimize the performance of engine anti-asthma system, the temperature distortion generator is used as an anti-asthma device, and the test results of some turbofan and turbojet engine stability components under different combinations are given separately.Compared and discussed the anti-asthma The results show that the most significant stabilizing effect of anti-asthma system is the use of short-time cut off fuel and guide vanes, deflation and other means of adjustment, but its shortcomings will bring greater thrust Loss and complexity of the system. However, the method of cutting oil and guide vanes to adjust is not as good as the former, but its thrust loss is small and the system is easy to implement.