Aircraft jig shape design based on radial basis functions and Delaunay graphic mapping

The vetex deformation pattern of multi-block grids is developed based on RBF technique coupling with Delaunay graphic mapping to establishe grid deformation platform. The Delaunay cell is generated using the grid sparse points and block vetexs. When aerodynamic configuration deforms, the block vetex will be moved by RBF technique and the Delaunay cells will be deformed, consequently, the mapping relation could be obtained to realize grid deformation. A certain lateral aerobus is taken as an typical example, jig shape is proposed firstly, static aeroelastic analysis is processed then to get the cruise shape of jig configuration, and the comparison with cruise design shape is investigated. The results show that the correction of jig shape design method established in this paper is validated. On the other hand, the "mapping surface" can be used to realized CFD/CSD data transformation effectively.