Review of Computational Approaches to Optimization Problems in Inhomogeneous Rods and Plates

Review of Computational Approaches to Optimization Problems in Inhomogeneous Rods and Plates
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非均匀棒材和板材优化问题的计算方法综述

DOI:
10.1007/s42967-022-00242-w
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发表时间:
2023
影响因子:
1.6
通讯作者:
Kao, Chiu-Yen
Kao, Chiu-Yen
中科院分区:
数学4区
文献类型:
--
作者:
Chen, Weitao;Kao, Chiu-Yen

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本文综述了非均匀杆、板优化问题的计算方法。我们同时考虑了特征值的优化问题和特征函数的局部化问题。这些问题是由物理问题引起的,包括基频极值的确定和振动位移的定位。我们证明了迭代重排方法和带投影的梯度下降方法如何在不同的边界条件和不同的密度下成功地求解这些优化问题。
In this paper, we review computational approaches to optimization problems of inhomogeneous rods and plates. We consider both the optimization of eigenvalues and the localization of eigenfunctions. These problems are motivated by physical problems including the determination of the extremum of the fundamental vibration frequency and the localization of the vibration displacement. We demonstrate how an iterative rearrangement approach and a gradient descent approach with projection can successfully solve these optimization problems under different boundary conditions with different densities given.
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