在某型双转子涡喷发动机上,进行了稳态复合式诱喘方法的试验研究,即把涡轮Ⅰ、Ⅱ级导向器和尾喷口流通面积,按相同于设计状态的百分比缩小,同时向主燃烧室里喷水,诱使喘振发作。缩小数值应恰当,大了会造成不喷水时发动机严重超温,小了会造成水起不到明显堵塞作用,不易逼到喘振点。这个百分比缩小值可以事先估算。 In a two-rotor turbojet engine, a steady-state composite induction method was studied, that is, the turbine Ⅰ, Ⅱ level guide and tail nozzle flow area, according to the same percentage in the design state of the reduced, while the main Spray water in the combustion chamber to induce a surge of attack. Reduce the value should be appropriate, big will cause serious engine overheating when the water is not sprayed, the small will cause the water can not significantly block the role, not easy to force the surge point. This percentage reduction can be estimated in advance.