Transactions of Materials and Heat Treatment

Title：Structure optimization of C-frame self-piercing riveting machine using goal driven optimization

Authors： HUANG Zhi-chao CHENG Wen-yu ZHAN Jin-qing CHEN Wei-da XUE Shu-guang

Unit： East China Jiaotong University

KeyWords： self-piercing riveting C-frame goal driven optimization structure optimization

ClassificationCode：TG938

year,vol(issue):pagenumber：2013,38(5):104-109

Abstract：

An optimal method based on goal driven optimization was presented by determining the objective function and constraint conditions for optimal design of the C-frame structure of self-piercing riveting machine. Firstly, the finite element model of the C-frame was performed, and static analysis of C-frame considering the limit working conditions was carried out. Secondly, topology optimization of the C-frame was developed in order to minimize the mass under the constraint of equivalent stress and total deformation. Lastly, a shape optimization method of C- frame based on the results of topology optimization was put forward. The optimal initial population was obtained through weighting the sort using the central composite design (CCD) and the shifted HAMMERSLEY sampling method. Therefore, three groups of candidate sample point were generated through the decision support process (DSP). The optimal solution was obtained from them. The numerical results show that the mass of the C-frame can be decreased by 16%，and the static strength requirement is satisfied，which shows that the proposed optimization method is effective.

Funds：

国家自然科学基金资助项目(51265012);江西省主要学科学术和技术带头人培养对象计划（20113BCB22010）;江西省“赣鄱英才555工程”领军人才培养计划(赣才字\[2012\]1号)

黄志超(1971-),男，博士,教授

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