Journal of Northeastern University Natural Science ›› 2020, Vol. 41 ›› Issue (2): 241-245.DOI: 10.12068/j.issn.1005-3026.2020.02.016

• Mechanical Engineering • Previous Articles     Next Articles

Blank Holder Force Prediction of Tailor Welded Blank Based on Neural Network Optimized by Genetic Algorithm

ZHANG Hua-wei, ZHENG Xiao-tao   

  1. School of Control Engineering, Northeastern University at Qinhuangdao, Qinhuangdao 066004, China.
  • Received:2019-05-21 Revised:2019-05-21 Online:2020-02-15 Published:2020-03-06
  • Contact: ZHANG Hua-wei
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Abstract: Numerical simulation and neural network technology were used for the blank holder force(BHF) prediction of tailor welded blank(TWB) box part in deep drawing. The influence of BHF loading type on the formability of TWB box part was analyzed by numerical simulation, and a preferable BHF loading type was obtained. Then BP neural network model suitable for BHF prediction was developed. At last, the neural network model was optimized by the genetic algorithm. The elitism strategy was introduced into the course of gene selection, and finally an ideal BHF curve was obtained by the neural network model optimized by the genetic algorithm, which can predict BHF value varying in deep drawing process and can lay the technical foundation for intelligent stamping.

Key words: objective, interval particle, intervaltailor welded blank, blank holder force prediction, BP neural network, genetic algorithm, box part

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