Journal
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
Volume 41, Issue 5, Pages 735-747Publisher
SPRINGER
DOI: 10.1007/s00158-009-0444-7
Keywords
Structure optimization; Level set; Cast part; Molding constraint
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Funding
- Special Fund for Basic Research Work in Central Universities
- National Fundamental Research Programme of China [2009CB724204]
- National Natural Science Foundation of China [50775090]
- Program for New Century Excellent Talents in University of China [NCET-06-0639]
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A cast part is formed via casting process in which molten liquid is poured into and solidifies in a cavity enclosed by molds. Then, one obtains the cast part when the molds are removed. An important issue in the casting process is that a cast part should have a proper geometry so that the molds can actually be removed. Accordingly, in the optimization of a cast part one not only needs to optimize the performance of the cast part but also needs to ensure the cast part have a proper geometry. With these goals, a level set based method is proposed for the optimization of cast part. A molding condition and a performance condition on the design velocity are derived for the optimization. Numerical examples are provided in 2D and 3D.
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