在Y12型飞机地面开车的时候,从慢车加速到大功率时,偶尔发动机的声音由尖哨转变为低沉;发动机的振动加大;转速不稳定,推力突然下降并且有大幅度的波动;发动机的排气温度升高;严重时会发生放炮偶尔会听到些异常声。这就是所谓的发动机发生了喘振。而对于涡轮螺旋桨发动机来说,喘振在压气机工作中危害很大,对于工作人员有些原理,发生原因不很清楚,解决办法也很棘手。本文对Y12型飞机压气机结构工作原理喘振原理加以分析说明。对工作中出现的故障从理论角度加以解释,从而使解决这方面问题有所借鉴。 When the Y12 was driven on the ground, the sound of the engine occasionally changed from a sharp whistle to a low one when it was accelerated from a local car to a high power; engine vibration was increased; the speed was unstable, thrust suddenly dropped and there was a substantial fluctuation; Exhaust temperature rises; serious blows occur Occasionally, unusual sounds can be heard. This is the so-called surge of the engine. For turboprop engines, surge in the work of the compressor is very harmful, there are some principles for the staff, the reasons are not clear, the solution is also very difficult. This paper analyzes the principle of surge of Y12 aircraft compressor working principle. To explain the failure occurred in the work from a theoretical point of view, so as to make it possible to solve this problem.