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工程设计学报
工程设计学报  2016, Vol. 23 Issue (1): 60-66    DOI: 10.3785/j.issn.1006-754X.2016.01.010
建模、分析、优化和决策     
高强度钢板U形件热冲压凹模结构拓扑优化
谢延敏, 何育军, 卓德志, 熊文诚
西南交通大学 机械工程学院先进设计与制造技术研究所, 四川 成都 610031
Topology optimization of hot stamping die structure on high-strength sheet metal for U shaped part
XIE Yan-min, HE Yu-jun, ZHUO De-zhi, XIONG Wen-cheng
Institute of Advanced Design and Manufacturing, College of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, China
 全文: PDF(2728 KB)   HTML
摘要： 为降低热冲压凹模的生产成本和使用成本,基于板料热冲压数值模拟对凹模结构进行了拓扑优化设计.运用有限元软件ABAQUS建立热力耦合有限元模型,对高强钢板U形件的热冲压成形和淬火过程进行了数值仿真.提取凹模与板料间关键工况下接触应力作为凹模拓扑优化的外在载荷,建立约束凹模结构关键区域节点位移的体积最小化拓扑模型,对热冲压凹模结构进行拓扑优化设计,最终实现结构减重20%,且优化后凹模的变形和应力与优化前的结果相差甚微.研究内容对热冲压过程数值模拟和模具结构拓扑优化研究具有一定参考价值.
关键词： 高强度钢;  热冲压;  拓扑优化    
Abstract: To reduce the production cost and use cost of hot stamping die, topology optimization of die structure was carried out based on numerical simulation about hot stamping. A finite element model based on thermal-mechanical coupled method was created through the software ABAQUS, numerical simulation on high-strength sheet metal for U shaped part's hot forming and cooling process was conducted. The contact stresses between blank and die at critical case were extracted to be the load for topology optimization, and an optimization model which aimed to minimize structure volume with nodal displacement constraints on the die structure crucial areas was created. Topology optimization of hot stamping die structure was carried out, and the weight of die structure was reduced by 20%, and die's stress and deformation almost kept the same with initial design conditions. The research provides reference for the study of numerical simulation for hot stamping process and topology optimization of hot stamping die structure.
Key words: high-strength steel    hot stamping    topology optimization
收稿日期: 2015-07-27 出版日期: 2016-02-28
CLC:  TG386  
基金资助:

国家自然科学基金资助项目(51275431).
作者简介: 谢延敏(1975-),男,四川安岳人,副教授,博士,从事先进塑性加工技术仿真和板料成形的稳健设计等研究,E-mail:xie_yanmin@home.swjtu.edu.cn.
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引用本文:

谢延敏, 何育军, 卓德志, 熊文诚. 高强度钢板U形件热冲压凹模结构拓扑优化[J]. 工程设计学报, 2016, 23(1): 60-66.

XIE Yan-min, HE Yu-jun, ZHUO De-zhi, XIONG Wen-cheng. Topology optimization of hot stamping die structure on high-strength sheet metal for U shaped part. Chinese Journal of Engineering Design, 2016, 23(1): 60-66.

链接本文:

https://www.zjujournals.com/gcsjxb/CN/10.3785/j.issn.1006-754X.2016.01.010    或    https://www.zjujournals.com/gcsjxb/CN/Y2016/V23/I1/60

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