設計制約を考慮したアセンブリモデルのメッシュ変形操作(機械要素,潤滑,工作,生産管理など)

概要

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Mesh deformation, which is sometimes referred to as mesh morphing in CAE, is useful to provide various shapes of meshes to CAE tools. This paper proposes a new framework for interactively and consistently deforming assembly models of sheet structure for automobile parts. This framework is based on surface-based deformation, which calculates vertex positions so that the mean curvature normal is preserved at each vertex in a least square sense. While existing surface-based deformation techniques cannot simultaneously deform assembly mesh models, our method allows to smoothly deforming disconnected meshes by propagating rotations and translations through disconnected vertices. In addition, we extend our deformation technique so that non-manifold conditions can be handled, because shell structure models often include non-manifold edges. We applied our method to assembly mesh models of automobile parts. Our experimental results showed that our method could deform assembly models smoothly and interactively.
社団法人日本機械学会の論文
2008-03-25