关键词: 虚拟制造, 径向基函数网络, 曲面重构, 加工过程仿真

Abstract: To deal with the non-uniform discrete measured data points for surface reconstruction in process simulation, a method based on Radial Basis Function Network (RBFN) was proposed. The basic theory of RBFN for 3D surface reconstruction was presented, and the process for calculating the surface function was realized. The method of defining parameter factor Q was discussed and the implemental process of RBFN for 3D surface reconstruction was provided. Reconstruction error was calculated. Feasibility of the method was validated by an example. The comparison between this method and the traditional method of surface reconstruction was introduced. Result showed this method could greatly improve reconstruction efficiency, and overcome the shortcomings of surface-shape losing and calculation unsteadiness.

Key words: virtual manufacturing, radial basis function network, surface reconstruction, process simulation