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The ICM method with objective function transformed by variable discrete condition for continuum structure
  • ISSN号:0567-7718
  • 期刊名称:《力学学报:英文版》
  • 时间:0
  • 分类:O343[理学—固体力学;理学—力学]
  • 作者机构:[1]Numerical Simulation Center for Engineering,The College of Mechanical Engineering and Applied Electronics Technology,Beijing University of Technology,Beijing 100022
  • 相关基金:The project supported by the National Natural Science Foundation of China (10472003), Beijing Natural Science (3002002) and Beijing Educational Committee Foundations (KM200410005019) and Suspensofled by American MSC Company. The English text was polished by Keren Wang.
中文摘要:

ICM (独立连续印射) 方法能与是的最小化的重量解决拓扑的优化问题对排水量限制客观、使 \O 遭到。为了得到一种更清楚的拓扑的配置,由介绍拓扑的变量的分离条件并且与原来的目的集成,有多目的一个最佳的模型被提出让拓扑的变量尽可能近接近 0 或 1,并且模型减少在结果上删除率的效果。过滤图象的方法被采用消除发生在连续统结构的拓扑学优化的棋盘模式和网孔依赖。计算效率通过选择伪活跃的排水量限制和一个设计区域被提高。数字例子显示这个算法柔韧、适用,尽管重复的数字稍微关于原来的算法被增加。

英文摘要:

ICM (Independent Continuous Mapping) method can solve topological optimization problems with the minimized weight as the objective and subjected to displacement constraints. To get a clearer topological configuration, by introducing the discrete condition of topological variables and integrating with the original objective, an optimal model with multi-objectives is formulated to make the topological variables approach 0 or 1 as near as possible, and the model reduces the effect of deleting rate on the result. The image-filtering method is employed to eliminate the checkerboard patterns and mesh dependence that occurred in the topology optimization of a continuum structure. The computational efficiency is enhanced through selecting quasi-active displacement constraints and a design region. Numerical examples indicate that this algorithm is robust and practicable, though the number of iterations is slightly increased with respect to the original algorithm.

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期刊信息
  • 《力学学报:英文版》
  • 中国科技核心期刊
  • 主管单位:中国科学技术协会
  • 主办单位:中国力学学会 中国科学院力学研究所
  • 主编:卢天健
  • 地址:北京市海淀区北四环西路15号
  • 邮编:100190
  • 邮箱:actams@cstam.org.cn
  • 电话:010-62536271
  • 国际标准刊号:ISSN:0567-7718
  • 国内统一刊号:ISSN:11-2063/O3
  • 邮发代号:2-703
  • 获奖情况:
  • 国内外数据库收录:
  • 被引量:352