An efficient Moving Morphable Component (MMC)-based approach for multi-resolution topology optimization

TL;DR

This paper introduces a highly efficient MMC-based method for multi-resolution topology optimization, significantly reducing computational costs while maintaining detailed structural designs through decoupled analysis and design models.

Contribution

It presents a novel MMC-based framework that decouples finite element analysis from design optimization, enabling high-resolution results with fewer degrees of freedom.

Findings

Substantial computational savings demonstrated in 2D and 3D cases.

Decoupling analysis and design models preserves topology complexity.

Efficient multi-resolution optimization achieved with super-elements.

Abstract

In the present work, a highly efficient Moving Morphable Component (MMC) based approach for multi-resolution topology optimization is proposed. In this approach, high-resolution optimization results can be obtained with much less number of degrees of freedoms (DOFs) and design variables since the finite element analysis model and the design optimization model are totally decoupled in the MMC-based problem formulation. This is achieved by introducing super-elements for structural response analysis and adopting a domain decomposition strategy to preserve the topology complexity of optimized structures. Both two-and three-dimensional numerical results demonstrate that substantial computational efforts can be saved with use of the proposed approach.