Abstract
An integrated optimization strategy based on Kriging model and multi-objective particle swarm optimization (PSO) algorithm was constructed. As a new surrogate model technology, Kriging model has better fitting precision for nonlinear problem. The Kriging model was adopted to replace computer aided engineering (CAE) simulation as fitness function of multi-objective PSO algorithm, and the computation cost can be reduced greatly. By introducing multi-objective handling mechanism of crowding distance and mutation operator to multi-objective PSO algorithm, the entire Pareto front can be approximated better. It is shown that the multi-objective optimization strategy can get higher solving accuracy and computation efficiency under small sample.
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Foundation item: the National Natural Science Foundation of China (No. 50873060)
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Chen, W., Zhou, Xh., Wang, Hf. et al. Multi-objective optimal approach for injection molding based on surrogate model and particle swarm optimization algorithm. J. Shanghai Jiaotong Univ. (Sci.) 15, 88–93 (2010). https://doi.org/10.1007/s12204-010-9517-4
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DOI: https://doi.org/10.1007/s12204-010-9517-4
Key words
- injection molding
- multi-objective optimization
- particle swarm optimization(PSO)
- surrogate model
- Kriging model