Topology Optimization considering Shielding and Penetrating Features based on Fictitious Physical Model

TL;DR

This paper introduces a topology optimization method that incorporates shielding and penetrating features using a fictitious physical model based on temperature field analysis, validated through 2D and 3D examples.

Contribution

It presents a novel topology optimization approach that explicitly considers shielding and penetrating features via a fictitious physical model, enhancing geometric control.

Findings

Effective control of geometric features demonstrated in numerical examples

Method successfully applied to 2D and 3D topology optimization problems

Improved design performance with shielding and penetrating features

Abstract

This paper proposes topology optimization for considering shielding and penetrating features. Based on the fictitious physical model, which is a useful approach to control geometric features, the proposed method analyzes fictitious steady-state temperature fields and interprets target geometric features by examining the temperature change. First, the concept of topology optimization based on the level set method is introduced. Next, the basic idea of the fictitious physical model for considering geometric features is explained. Then, the differences between the shielding and penetrating features are clarified, and the fictitious physical model for evaluating these features is proposed. Furthermore, topology optimization for the minimum mean compliance problem with geometric conditions is formulated. Finally, 2D and 3D numerical examples are presented to validate the proposed method.