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  • 标题:Optimization of simulation model parameters for solidification of metals with use of agent-based evolutionary algorithm
  • 作者:S. Kluska-Nawarecka ; A. Smolarek-Grzyb ; A. Byrski
  • 期刊名称:Computer Science
  • 印刷版ISSN:1508-2806
  • 出版年度:2008
  • 卷号:9
  • 期号:Vol. 9
  • 页码:55-66
  • 语种:English
  • 出版社:Data set: BazTech
  • 摘要:The finite elements method (FEM) is currently widely used for simulation of thermal processes. However, one of still unresolved problems remains proper selection of mathematical model parameters for these processes. As far as modelling of cooling casts in forms is concerned, particular difficulties appear while estimating values of numerous coefficients such as: heat transport coefficient between metal and form, specific heat, metal and form heat conduction coefficient, metal and form density. Coefficients mentioned above depend not only on materials properties but also on temperature. In the paper the idea of optimalization of simulation method parameters based on adaptive adjustment of curve representing simulation result and result obtained in physical experiment is presented along with the idea of evolutionary and agent-based evolutionary optimization system designed to conduct such optimizations. Preliminary results obtained with use of ABAQUS system available in ACK CYFRONET and software developed at AGH-UST conclude the paper.
  • 关键词:numeryczna symulacja; algorytmy ewolucyjne; system agentowy; proces krzepnięcia odlewów; odlew
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