To reduce the resonance stress of rotor blade under wake aerodynamic force of front stator vane

and also extend the fatigue endurance

the aerodynamic mistuned of stator vane was analyzed.Two kinds of design solutions of stator vane's aerodynamic mistuned were considered

one: uneven stator mistuned

and the other: asymmetry stator mistuned.Through calculation of unsteady flow field of stator-rotor model

the spectrum and amplitude of unsteady aerodynamic force of two mistuned design packages were compared.The results show that

uneven stator mistuned design couldn't reduce aerodynamic force of rotor blade

but lead to bigger frequency division of spectrum and amplitude.Though asymmetry stator mistuned may result in bigger amplitude aerodynamic force with the same frequency as rotational speed

it could reduce effectively the aerodynamic force of blade as a whole.