A Propeller Characteristic Investigation Based on Fourier Analysis

According to the theory of the function approximation,we take the existing characteristic curve of propeller for Fourier analysis,and on this basis,get the empirical formula of the propeller efficiency and the propeller blade angle.Comparing the results of the experiment with that of map,the algorithm has a higher precision.This algorithm can not only support the developing of propeller FADEC,but also provide preciser data for traditional mechanical hydraulic centrifugal control system to control the state of engine,reduced the workload of the pilots.