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薄壁铝型材挤压有限体积分步模拟
引用本文:李大永,王洪俊,罗超,彭颖红,周飞.薄壁铝型材挤压有限体积分步模拟[J].上海交通大学学报,2005,39(1):6-9.
作者姓名:李大永  王洪俊  罗超  彭颖红  周飞
作者单位:1. 上海交通大学,机械与动力工程学院,上海,200030
2. 上海大众汽车有限公司,上海,201805
3. 中南大学,材料科学与工程学院,长沙,410083
4. 同济大学,机械工程学院,上海,200092
基金项目:上海市启明星跟踪计划资助项目(01QMH1411)
摘    要:建立了铝型材挤压成形有限体积法分步模拟系统.研究了有限体积分步求解方法关键技术,实现了各分步有限体积模拟系统的数据传递和信息继承.在每一分步计算中,占用相对较少的计算机资源,可划分更为细致的有限体积网络.利用该方法成功地模拟了薄壁类铝型材挤压成形过程,并对成形中应力、应变及温度场分布的演化进行了分析.研究结果表明,有限体积分步法是模拟薄壁类铝型材挤压成形过程的有效方法.

关 键 词:铝型材  挤压  有限体积法  分步模拟
文章编号:1006-2467(2005)01-0006-04
修稿时间:2004年2月26日

Simulation of Thin-Walled Aluminum Profile Extrusion Process with Multi-stage Finite Volume Method
LI Da-yong,WANG Hong-jun,LUO Chao,PENG Ying-hong,ZHOU Fei.Simulation of Thin-Walled Aluminum Profile Extrusion Process with Multi-stage Finite Volume Method[J].Journal of Shanghai Jiaotong University,2005,39(1):6-9.
Authors:LI Da-yong  WANG Hong-jun  LUO Chao  PENG Ying-hong  ZHOU Fei
Institution:LI Da-yong~1,WANG Hong-jun~2,LUO Chao~3,PENG Ying-hong~1,ZHOU Fei~4
Abstract:In the simulation of thin-walled aluminum profile extrusion process, the finite element method(FEM) can result in distored product shape due to frequent mesh rezoning, while the requirement of finite volume method(FVM) on computer resource is too high. The key technology for multi-state FVM simulation was studied. Data transfer and information inheritance between successive stages was fulfilled. Because less memory is needed in every single stage, more refined finite volume mesh can be zoned. The extrusion process of a thin-walled aluminum profile was simulated with the proposed method. The evolution of stress, strain and temperature distribution was analyzed. The simulation results show the multi-stage FVM is an effective numerical simulation method for aluminum extrusion process and can help the development of new aluminum extrusion products.
Keywords:aluminum profile  extrusion  finite volume method (FVM)  multi-stage simulation
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