Displacements Transfer in Static Aeroelastic Analysis Using Least-Squares Fitting Method

A least-squares fitting method combining chordwise linear functions and spanwise consistent compactly supported radial basis functions, is presented for displacements transfer in static aeroelastic analysis, the basis of which lies in the loosely coupled iteration between potential-flow panel model and structural finite element model. Compared with the conventional interpolation method, the proposed method can circumvent the erroneous undulations arising from unsmooth discrete displacements, additionally, the design sensitivities of wing deformations and static aeroelastic loads will be more reasonable.