Taking a certain turbofan engine as an example

the emergency control of aero-engine was introduced

and two emergency control modes were given:overthrust control and fast response control.The simulation results show that after constraint release

overthrust control can provide an additional 16.6% of the engine's thrust

but at the same time

the temperature of turbine inlet rises by 10.8%;and under fast response control

the rise time of low pressure rotor reduces to 1.675s from 2s

however the stability margin of compressor decreases by 6.05% and the thermo-mechanical fatigue life of the turbine guide vane declines by 5.16%.