【24h】

A New Hybrid Topology Optimization Method Coupling ESO and SIMP Method

机译:ESO与SIMP耦合的混合拓扑优化新方法。

获取原文
获取原文并翻译 | 示例

摘要

In this paper, a new hybrid topology optimization named ESO-SIMP which couples evolutionary structural optimization (ESO) and SIMP is proposed. In ESO-SIMP method, the relative densities of elements are taken as the design variables, and the mean compliance is selected as the objective function. The mathematical model of topology optimization is built, and the iterative formula based on optimization criteria is obtained. A filtering function using strain energy as sensitivity number is introduced to prevent checkerboards and to eliminate mesh independency. In the process of each iteration, elements whose relative densities are less than or equal to rejection ratio are removed from the design domain and all remained elements are entered into the next iteration. The ESO method and the SIMP method are merged together perfectly in this paper. It is found that the new ESO-SIMP method has many advantages over the ESO method and the SIMP method in terms of efficiency and robustness.
机译:本文提出了一种新的混合拓扑优化方法,称为ESO-SIMP,它结合了进化结构优化(ESO)和SIMP。在ESO-SIMP方法中,将元素的相对密度作为设计变量,并选择平均顺应性作为目标函数。建立了拓扑优化的数学模型,得到了基于优化准则的迭代公式。引入了使用应变能作为敏感度数的滤波功能,以防止棋盘格并消除网格的独立性。在每次迭代的过程中,将从设计域中删除相对密度小于或等于拒绝比率的元素,并将所有剩余元素输入到下一个迭代中。本文将ESO方法和SIMP方法完美地融合在一起。发现新的ESO-SIMP方法在效率和鲁棒性方面比ESO方法和SIMP方法具有许多优点。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号