Materials Transactions Online

Materials Transactions, Vol.53 No.02 (2012) pp.367-373
© 2012 Japan Foundry Engineering Society

Multi-Subcenters Solution Search Algorithm for CFD Optimization Problems and Its Application to Die Casting

Yoshifumi Kuriyama1 and Ken’ichi Yano2

1Department of Electronic Control Engineering, Gifu National College of Technology, Motosu 501-0495, Japan
2Department of Mechanical Engineering, Faculty of Engineering, Mie University, Tsu 514-8507, Japan

For die-casting, various approaches to finding the optimal control settings and optimal mold by using a computational fluid dynamics (CFD) simulator have recently been studied and applied. However, the optimal value obtained by using a conventional CFD simulator does not consistently agree with experiment, owing to computational error. Accordingly, we analyze the problem of optimization with a CFD simulator in order to develop an optimization method that can consistently produce suitable results. To assess the effectiveness of the proposed method, it was applied to the optimization of plunger speed in die-casting.

(Received 2010/11/29; Accepted 2011/09/07; Published 2012/01/25)

Keywords: aluminum alloy, die-casting, optimization, computational fluid dynamics simulation, distributed control, cluster analysis

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