Refined design method of power demands for flight control electric actuator based on load matching

Facing the demand of engineering application of electric actuators, this paper proposed a refined design method of power demands based on load matching. By designing the working points, working characteristic curves and working regions of electric actuators based on the distribution of external aerodynamic loads, the relationship between the mechanical characteristics of electric actuators and external loads was established, providing accurate power demands for the parameter design of electric actuators in the method design stage. Finally, the effectiveness of the method was verified by simulation, and the actuator designed with refined demand could achieve significant weight reduction while meeting the maneuvering requirements under the full flight envelope.