Aircraft aero-servo elasticity ground test can be used to test the coupling characteristics between flight control system and structural modality,verify the stability of flight control system within the range of the frequency of structural elasticity modality,thus to provide basis for correction and analysis of aero-servo elasticity model so as to further reduce the risk for flight test.This paper introduces the principle and method for aircraft aero-servo elasticity ground test.It also analyses the factors probably affecting accuracy of test result with reference to engineering experience and lessons and puts forward the corresponding solutions.It also expounds the trial research on the methods such as optimization and improvement of structural wave filter and test data processing and analysis.
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