Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Multi-objective Optimization of an Injection Mold Cooling Circuit for Uniform Cooling

사출금형의 균일 냉각을 위한 냉각회로의 다중목적함수 최적설계

  • Park, Chang-Hyun (Department of Mechanical Engineering, Graduate School, Hanyang University) ;
  • Park, Jung-Min (Department of Mechanical Engineering, Graduate School, Hanyang University) ;
  • Choi, Jae-Hyuk (Department of Mechanical Engineering, Graduate School, Ajou University) ;
  • Rhee, Byung-Ohk (Department of Mechanical Engineering, Ajou University) ;
  • Choi, Dong-Hoon (The Center of Innovative Design Optimization Technology, Hanyang University)
  • 박창현 (한양대학교 대학원 기계공학과) ;
  • 박정민 (한양대학교 대학원 기계공학과) ;
  • 최재혁 (아주대학교 대학원 기계공학과) ;
  • 이병옥 (아주대학교 기계공학과) ;
  • 최동훈 (한양대학교 최적설계신기술연구센터)
  • Received : 2011.03.24
  • Accepted : 2011.06.27
  • Published : 2012.01.01
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Abstract

An injection mold cooling circuit for an automotive front bumper was optimally designed in order to simultaneously minimize the average of the standard deviations of the temperature and the difference in mean temperatures of the upper and lower molds for uniform cooling. The temperature distribution for a specified design was evaluated by Moldflow Insight 2010, a commercial injection molding analysis tool. For efficient design, PIAnO (Process Integration, Automation and Optimization), a commercial PIDO tool, was used to integrate and automate injection molding analysis procedure. The weighted-sum method was used to handle the multi-objective optimization problem and PQRSM, a function-based sequential approximate optimizer equipped in PIAnO, to handle numerically noisy responses with respect to the variation of design variables. The optimal average of the standard deviations and difference in mean temperatures were found to be reduced by 9.2% and 56.52%, respectively, compared to the initial ones.

Keywords

References

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