Analysis of jig-shape design for elastic wing

In order to eliminate the influence of static aeroelastics deformation and to satisfy the flying characteristic requirement of aircraft, an approach to the jig-shape elastic wing design problem was presented. The aerodynamic analysis was carried out with solutions of the 3-dimensional Navier-Stokes equations. On the basis of the analysis and coupling with the static aeroelastic balance equation, the jig-shape design of elastic wing was investigated. The whole optimization process and the accuracy of results are raised because of the numerical simulation of flowing field around the wing with solutions of N-S equations, and the computation time is reduced because the time-averaged compressible N-S equations is solved by the implicit LU-NND algorithm. The design of a swept wing is presented as an example to demonstrate the efficiency of the approach, and the results show that it is correct and effective.