Topology optimization with a closed cavity exclusion constraint for additive manufacturing based on the fictitious physical model approach

T Yamada, Y Noguchi - Additive Manufacturing, 2022 - Elsevier
This paper proposes a topology optimization method that considers the geometric constraint
of no closed cavities to improve the effectiveness of additive manufacturing based on the …

[HTML][HTML] Self-support topology optimization considering distortion for metal additive manufacturing

T Miki - Computer Methods in Applied Mechanics and …, 2023 - Elsevier
This paper proposes a self-support topology optimization method that considers distortion to
improve the manufacturability of additive manufacturing. First, a self-support constraint is …

[图书][B] Applications of the topological derivative method

AA Novotny, J Sokołowski, A Żochowski - 2019 - Springer
The topological derivative method is recognized as a robust numerical technique in
engineering applications such as topology optimization, inverse problems, imaging …

Level set-based topology optimization for graded acoustic metasurfaces using two-scale homogenization

Y Noguchi, T Yamada - Finite Elements in Analysis and Design, 2021 - Elsevier
This paper proposes a level set-based topology optimization method for acoustic
metasurfaces consisting of multiple types of unit cells. As a type of acoustic metasurface, we …

Solving electromagnetic inverse scattering problems in inhomogeneous media by deep convolutional encoder–decoder structure

HH Zhang, HM Yao, L Jiang… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This communication proposes a novel deep learning (DL) approach to solve
electromagnetic inverse scattering (EMIS) problems in inhomogeneous media. The …

[图书][B] An introduction to the topological derivative method

AA Novotny, J Sokołowski - 2020 - Springer
Mathematical analysis and numerical solutions of problems with unknown shapes is a
challenging and rich research field in the modern theory of calculus of variations, partial …

Multi-frequency subspace migration for imaging of perfectly conducting, arc-like cracks in full-and limited-view inverse scattering problems

WK Park - Journal of Computational Physics, 2015 - Elsevier
Multi-frequency subspace migration imaging techniques are usually adopted for the non-
iterative imaging of unknown electromagnetic targets, such as cracks in concrete walls or …

Topology optimization for hyperbolic acoustic metamaterials using a high-frequency homogenization method

Y Noguchi, T Yamada, K Izui, S Nishiwaki - Computer Methods in Applied …, 2018 - Elsevier
In this paper, we propose a level set-based topology optimization method for the design of
hyperbolic acoustic metamaterials using a high-frequency homogenization method. To …

Topology optimization of acoustic metasurfaces by using a two-scale homogenization method

Y Noguchi, T Yamada - Applied Mathematical Modelling, 2021 - Elsevier
In this paper, we propose a level set-based topology optimization method for the unit-cell
design of acoustic metasurfaces by using a two-scale homogenization method. Based on …

A level-set-based topology optimisation for acoustic–elastic coupled problems with a fast BEM–FEM solver

H Isakari, T Kondo, T Takahashi… - Computer Methods in …, 2017 - Elsevier
This paper presents a structural optimisation method in three-dimensional acoustic–elastic
coupled problems. The proposed optimisation method finds an optimal allocation of elastic …