Optuna, widely used for solving optimization problems, has recently been updated to version 4, introducing a new feature called OptunaHub. Taking this opportunity, we have published an implementation of the multi-objective optimization algorithm "MOEA/D" through OptunaHub. In this article, we introduce the characteristics of MOEA/D and present an example comparison with other optimization methods. Those interested in evolutionary multi-objective optimization or seeking more efficient optimization techniques may find this article useful.

This article examines the utility of deriving estimations of target values by applying publicly accessible information to theoretical models as a preliminary step prior to conducting a numerical simulation.

Structural analysis uses the finite element method, while fluid analysis uses the finite volume method. Why are different methods commonly used for structure and fluid analysis, even though both are the same in the sense that they are methods for solving partial differential equations discretely? In this article, we compare the finite element method and the finite volume method in fluid analysis and give a glimpse into the reason “why the finite volume method became common in CFD."

In this article, I will take "Hiragana" as an example of shape exploration and investigate it. After reading this, you will surely want to know more about the shapes around you.

Trees generated with fractal structures are geometric shapes and look very beautiful, but on the other hand, there is something incongruous when compared to trees growing naturally. In this article, I would like to create a modeling environment for tree shapes on Grasshopper in Rhinoceros, aiming for more natural tree shapes, while reviewing how to create structures using recursive processing.

Do you have a smart phone? How many of you know that 3D scanning of objects is possible with your smartphone? This blog is an invitation to try 3D scanning with your smartphone. This blog is an invitation to try 3D scanning with your smartphone. Welcome to the world of 3D scanning.

The performance improvement of competitive three-dimensional puzzles has greatly contributed to shortening solving times. Through analysis using the dynamic explicit method, we delve into the secrets of their smooth rotation.

A slap band wraps around an arm or other object when struck. It is a bistable structure that remains stable both when extended and when rolled up. This article explains the principles behind slap bands and similar structures.

Have you ever experienced using topology optimization? Some of you might have used commercial software but may not fully understand the internal workings or specific features of different methods. In this article, we will explain the characteristics of typical topology optimization methods in a simple manner, implement two of them, and compare the results.

This article is the second part of a blog introducing Lattice Structure Homogenization. In the first part, we introduced the homogenization of lattice structures as elastic bodies. In the second part, we will introduce the homogenization of channels created by lattice structures, including the homogenization process through numerical experiments and visualization of the homogenization results.