Journal
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
Volume 36, Issue 2, Pages 193-202Publisher
SPRINGER
DOI: 10.1007/s00158-007-0209-0
Keywords
casting optimization; feeder design; SIMP; solidification control; topology optimization
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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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