江苏大学学报（自然科学版）2012，Vol.33Issue(1)：30-33,76,5.DOI:10.3969/j.issn.1671-7775.2012.01.007
基于混合H2/H∞控制的拼焊板零件成形方法
Forming method of tailor weld blanks based on mixed H2/H∞ control
摘要
Abstract
To solve the deficiency of constant blank holder force (BHF) method in stamping process of tailor weld blanks (TWBs) , the mixed H_2/H_∞ control strategy for variable BHF was proposed. The control objective for the mixed H_2/H_∞ control was established to design control model, control algorithm and control logic. Based on the proposed model, the feedback numerical simulation was used to discuss the influence of mixed H_2/H_∞ control method on TWBs defect. In order to verify the simulation result, the optimal BHF curve under mixed H_2/H_∞ control was input to hydraulic press to realize variable BHF hydraulic press. The simulation and test results show that the inner side panel of automotive body can be successfully stamped based on the mixed H_2/H_∞ control strategy for variable BHF. Considering stamping trip and blank holder board position, the proposed BHF determination approach can avoid wrinkling and cracking under constant BHF with good robustness.关键词
车身/拼焊板/变压边力/混合H2/H∞控制/成形Key words
automotive body/ tailor weld blanks/ variable blank holder force/ mixed H_2/H_∞ control/ forming分类
机械制造引用本文复制引用
王春燕,赵万忠,王宇,徐晓宏..基于混合H2/H∞控制的拼焊板零件成形方法[J].江苏大学学报（自然科学版）,2012,33(1):30-33,76,5.基金项目
国家自然科学基金资助项目(51005115) （51005115）
机械传动国家重点实验室开放基金资助项目(SKLMT-KFKT-201105) （SKLMT-KFKT-201105）
南京航空航天大学基本科研业务费专项科研项目(NS2010058) （NS2010058）
