期刊
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
卷 36, 期 2, 页码 193-202出版社
SPRINGER
DOI: 10.1007/s00158-007-0209-0
关键词
casting optimization; feeder design; SIMP; solidification control; topology optimization
The optimal design of a casting feeding system is considered. The problem is formulated as the volume constrained topology optimization and is solved with the finite element analysis, explicit design sensitivity, and numerical optimization. In contrast to the traditional topology optimization where the objective function is defined on the design space, in the presented method, the design space is a subset of the complement of the objective function space. To accelerate optimization procedure, the nonlinear unsteady heat transfer equation is approximated with a Poisson-like equation. The feasibility of the presented method is supported with illustrative examples.
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