612 メッシュデータからCAD自由曲面生成に関する検討(OS-6C 次世代CAD/CAE(メッシュ/リバース),OS-6 次世代CAD/CAE)

概要

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In this paper, we present a new method to reconstruct CAD modeling free form surface from mesh data. This method bases on field theory. We firstly construct a three-dimensional harmonic temperature field. The field is made of the original mesh and the offsetting of the original mesh. The distribution of temperature in the field is obtained by the finite element method (FEM). Iso-parameter curves are grouped with linear interpolation according to the distribution. Remeshed vertices are confirmed on the adjacent curves and connected to form CAD modeling quadrilateral meshes. The method has been successfully tested on reconstructing meshes from arbitrary triangular meshes. Results show that meshes generated by the proposed method are well-shaped, well-sized and smooth.
一般社団法人日本機械学会の論文
2005-11-17