arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1606.06201math.OCcs.NAmath.NA
收藏

拓扑优化的对偶内点多网格方法

Primal-dual interior-point multigrid method for topology optimization

University of Birmingham(伯明翰大学);Institute of Information Theory and Automation, Academy of Sciences of the Czech Republic(捷克科学院信息论与自动化研究所);University of Kirkuk(基尔库克大学)

Michal Kocvara, Sudaba Mohammed

AI总结:

本文提出了一种用于结构拓扑优化的内点方法,采用几何多网格预处理的共轭梯度法求解线性系统,并与优化条件方法进行比较,证明了对于大规模问题,不精确迭代线性求解器的内点方法更优。

摘要:

本文提出了一种用于结构拓扑优化的内点方法。该方法中出现的线性系统通过共轭梯度法预以几何多网格进行预处理来求解。随后,该方法与拓扑优化中已建立的优化条件方法进行比较。该方法还配备了多网格预处理的共轭梯度算法。我们得出结论,对于大规模问题,具有不精确迭代线性求解器的内点方法优于本文研究的所有其他变体。

英文摘要:

An interior point method for the structural topology optimization is proposed. The linear systems arising in the method are solved by the conjugate gradient method preconditioned by geometric multigrid. The resulting method is then compared with the so-called optimality condition method, an established technique in topology optimization. This method is also equipped with the multigrid preconditioned conjugate gradient algorithm. We conclude that, for large scale problems, the interior point method with an inexact iterative linear solver is superior to any other variant studied in the paper.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑