Abstract: Based on the fundamental principal analysis of static aeroelastics, the paper develops the engineering design method for wing aeroelastic characteristics. On the basis of parameterized aeroelastic model, the impacts of important parameters of composite wing integral skin on rudder effectiveness, static deformation, and static strength are studied. Using the variational analytical method, a sensitivity analysis is carried out to obtain the trends of those critical parameters affecting the rudder effectiveness, which can guide the aeroelastic tailoring optimal design of the rudder effectiveness. Furthermore, the optimized design results are treated to satisfy the engineering requirement and are verified, obtaining the engineering applicable skin ply scheme. The proposed design not only optimizes the rudder effectiveness to fulfill the aircraft performance requirement, but also helps the composite skin of a certain type of aircraft to gain a satisfactory weight reduction of 105 kg (14 % of the total weight).

Key words: static aeroelastic, wing, variable parameter analysis, aeroelastic tailoring, aileron efficiency