基于近似替代模型的多工位高速锻造预锻模具优化.PDF

16 4 塑性工程学报 Vol16 No4 2009 8 JOURNAL OF PLASTICITY ENGINEERING Aug 2009 doi:103969/ jissn1007-2012200904015 吴彦骏 赵 震 梁艳迁 ( 上海交通大学 模具CAD 国家工程研究中心, 上海 200030) 胡成亮 高崇晖 : , , , , , Kriging BP , , , n , , , 40% c : ; ; Kriging; BP ; . : TG316 : A : 1007-2012 (2009) 04-0079-06 g r Optimization of preform of high- speed multi-stage 库 o forging based on surrogate model methodology 例 . 案 WU Yan-jun ZHAO Zhen LIANG Yan-qian HU Cheng-liang GAO Chong-hui E o ( National Engineering Research Center of Die and Mold CAD, Shanghai Jiaotong University, Shanghai 200030 China) A e C m Abstract: The high-speed mult-i stage forging is an advance forming technique. It is different from the traditional die forging 模 process. The improper preform design will lead to some problem in actual production, such as too largeload, underfill, folding a c and so on. In order to obtain the optimal design, an new optimization method based on surrogate models is researched in this pa- 凯 per. This methodology applies the Latin