|
摘要：
|
|
针对汽车覆盖件模具,提出一种基于板料成形模拟的模具结构拓扑优化方法,得到了新型的模具结构。先通过板料成形数值模拟得到板料对模具的作用力,经格式转换后,将模面节点力导入施加到模具的三维有限元模型上进行结构拓扑优化。运用该方法优化某后备门外板模具结构,经对比分析发现,优化后二次设计的模具结构相对于传统结构具有更高的刚度和更轻的质量,优于传统结构。
|
|
Aimed at optimizing the structure of automobile panel die,a method of structural topological optimization based on the simulation of sheet metal forming was proposed.And then,a new-style structure was designed.The boundary forces that blank acted on die surface were obtained from the sheet metal forming simulation.The nodal forces were transformed and applied on 3-D finite element method(FEM) model of die for the topological optimization.An outer decklid was selected to testify this methodology.Comparing the FEM analysis result of re-engineering structure with traditional structure,it is found that the re-engineering structure has a better performance than traditional with higher stiffness and less mass.
|
|
基金项目：
|
|
|
|
作者简介：
|
|
|
|
参考文献：
|
[1]约瑟夫.计算机模拟与模具应力分析[J].坚固件技术,2000,(3):22-26.
[2]Lee Youngseon,Lee Junghwan,Choi Jongung,et al.Experi-mental and analytical evaluation for elastic deformation behaviorsof cold forging tool[J].J.Mater.Process.Technol.,2002,127(1):73-82.
[3]Lee Youngseon,Lee Junghwan,Ishikawa T.Analysis ofthe elastic characteristics at forging die for the cold forged di-mensional accuracy[J].J.Mater.Process.Technol.,2002,130-131:532-539.
[4]陈亮,陈军,张贵宝,等.高强度钢板拉深模具结构有限元分析与试验研究[J].塑性工程学报,2008,15(2):42-45.
[5]张贵宝,陈军,王晓方.基于板料成形数值模拟的冲压模具结构分析方法[J].机械工程学报,2008,44(8):174-179.
[6]冯桢,于涛,曾齐福.拓扑优化方法在产品设计中的应用探索[J].机械设计与制造,2007,(3):138-139.
[7]刘志强,王明强.应用拓扑优化理论进行结构概念设计[J].机械与电子,2005,(10):27-29.
[8]荣见华,姜节晓.基于应力及其灵敏度的结构拓扑渐进优化方法[J].力学学报,2003,35(5):584-590.
[9]王伟.机翼结构拓扑优化的一种新渐进结构优化方法[J].飞机设计,2007,27(4):17-20.
[10]肖海峰,徐艳琴.基于PAM-STAMP 2G的模具结构的优化设计[J].锻压装备与制造技术,2009,44(1):67-68.
[11]胡江波,柳玉起,章志兵.车身覆盖件模具的拉深筋工艺设计和优化[J].锻压技术,2008,33(1):69-72.
[12]李泷杲.金属板料成形有限元模拟基础———PAMSTAMP 2G(Autostamp)[M].北京:北京航空航天大学出版社,2008.
[13]刘庆,侯献军.基于HyperMesh/OptiStruct的汽车零部件结构拓扑优化设计[J].装备制造技术,2008,(10):42-44.
|
|
服务与反馈：
|
|
【文章下载】【加入收藏】
|
|
|
|
