CAD-Based Shape Optimization Using A Meshfree Method  

Oleh:

Grindeanu, Iulian ; Kim, Nam Ho ; Choi, Kyung K ; Chen, Jiun-Shyan

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Concurrent Engineering vol. 10 no. 1 (Mar. 2002), page 55-66.
Topik: CAD-based design; design sensitivity analysis; design optimization; meshfree method.
Fulltext: 55.pdf (534.51KB)

Isi artikel

A shape design sensitivity analysis and optimization procedure is proposed using a meshfree method. A CAD tool connection is established to facilitate the seamless integration of structural modeling, simulation, and design optimization. A new CAD-based method for design velocity computation is proposed, applicable to both the meshfree method and the finite element method. A shape design variable can be chosen among the geometric parameters defined in the CAD model in order to support a concurrent engineering environment. A new CAD-based method for updating the discrete model is proposed, such that the meshfree model is automatically updated in a continuous and consistent way during design optimization. The proposed method is applied to 2D and 3D linear elastic problems, as well as to a large deformation hyperelastic problem.

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