[1]郑伟伟,周克民.应用类桁架模型的连续体拓扑优化方法[J].华侨大学学报(自然科学版),2014,35(3):327-331.[doi:10.11830/ISSN.1000-5013.2014.03.0327]
 ZHENG Wei-wei,ZHOU Ke-min.Continuum Topology Optimization Based on Truss-Like Model[J].Journal of Huaqiao University(Natural Science),2014,35(3):327-331.[doi:10.11830/ISSN.1000-5013.2014.03.0327]
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应用类桁架模型的连续体拓扑优化方法()
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《华侨大学学报(自然科学版)》[ISSN:1000-5013/CN:35-1079/N]

卷:
第35卷
期数:
2014年第3期
页码:
327-331
栏目:
出版日期:
2014-05-16

文章信息/Info

Title:
Continuum Topology Optimization Based on Truss-Like Model
文章编号:
1000-5013(2014)03-0327-05
作者:
郑伟伟 周克民
华侨大学 土木工程学院, 福建 厦门 361021
Author(s):
ZHENG Wei-wei ZHOU Ke-min
College of Civil Engineering, Huaqiao University, Xiamen 361021, China
关键词:
结构优化 拓扑优化 类桁架材料 应力约束 平面连续体
Keywords:
topology optimization structural optimization truss-like material stress constraint planar continuum
分类号:
TU311.4
DOI:
10.11830/ISSN.1000-5013.2014.03.0327
文献标志码:
A
摘要:
为了避免棋盘格、单元铰接等数值不稳定现象,研究了基于类桁架模型的连续体拓扑优化方法.将单元节点处材料密度的大小和方向作为设计变量,采用满应力优化准则对材料密度大小进行优化.为了形成带孔洞的匀质连续体,对设计变量增加了上下限约束,剔除密度低于一定下限的节点,限制节点密度.算例结果表明:不需要进一步处理,就能从类桁架连续体中获得清晰的带孔板.
Abstract:
In order to apply the truss-like model in the topology optimization of continuum and to avoid some numerical instability phenomenon like checkerboard and elements hinge, the topology optimization method of continuum based on truss-like model was investigated. The densities and orientations of material at nodes were taken as design variables. The densities of material were optimized by fully-stressed criteria. In order to form homogenous continuum with holes, the material with densities below the given critical value was removed, densities above upper limit are limited. Numerical examples show that plate with distinct holes can be obtained from the truss-like continua without further process.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2013-08-20
通信作者: 周克民(1962-),男,教授,主要从事结构拓扑优化的研究.E-mail:zhoukm@hqu.edu.cn.
基金项目: 国家自然科学基金资助项目(11172106)
更新日期/Last Update: 2014-05-20