Modular-topology optimization for additive manufacturing of reusable mechanisms

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985556%3A_____%2F25%3A00603316" target="_blank" >RIV/67985556:_____/25:00603316 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21110/25:00380475

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0045794924003596?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0045794924003596?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.compstruc.2024.107630" target="_blank" >10.1016/j.compstruc.2024.107630</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Modular-topology optimization for additive manufacturing of reusable mechanisms

Popis výsledku v původním jazyce

Modular designs have gained popularity because they can generally address manufacturing efficiency, reusability, and sustainability concerns. Here, we contribute to the growing field by proposing a fully automatic design method for modules utilized in several products. Our manufacturing-aware procedure is composed of three consecutive steps: (i) free-material optimization for obtaining the optimal spatially distributed elasticity tensors, (ii) hierarchical clustering of the stiffness tensors directly into a given number of modules while allowing for their flipping, and (iii) single-scale topology optimization with manufacturing aspects to design the final topology of mechanically compatible modules. These aspects include connectivity constraints to ensure the integrity of all modules and the three-field projection to account for manufacturing inaccuracies. We illustrate the entire procedure with the design and fabrication of eight different reusable modules assembled into well-functioning modular inverter and gripper mechanisms. These mechanisms were 3D printed and subjected to mechanical testing using an in-house testing machine and digital image correlation. The experimental results show excellent agreement between the predicted and observed behavior and highlight the potential of the method for scalable additive manufacturing.

Název v anglickém jazyce

Modular-topology optimization for additive manufacturing of reusable mechanisms

Popis výsledku anglicky

Modular designs have gained popularity because they can generally address manufacturing efficiency, reusability, and sustainability concerns. Here, we contribute to the growing field by proposing a fully automatic design method for modules utilized in several products. Our manufacturing-aware procedure is composed of three consecutive steps: (i) free-material optimization for obtaining the optimal spatially distributed elasticity tensors, (ii) hierarchical clustering of the stiffness tensors directly into a given number of modules while allowing for their flipping, and (iii) single-scale topology optimization with manufacturing aspects to design the final topology of mechanically compatible modules. These aspects include connectivity constraints to ensure the integrity of all modules and the three-field projection to account for manufacturing inaccuracies. We illustrate the entire procedure with the design and fabrication of eight different reusable modules assembled into well-functioning modular inverter and gripper mechanisms. These mechanisms were 3D printed and subjected to mechanical testing using an in-house testing machine and digital image correlation. The experimental results show excellent agreement between the predicted and observed behavior and highlight the potential of the method for scalable additive manufacturing.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GX19-26143X" target="_blank" >GX19-26143X: Neperiodické materiály vykazující strukturované deformace: Modulární návrh a výroba</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Computers and Structures

ISSN

0045-7949

e-ISSN

1879-2243

Svazek periodika

307

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

107630

Kód UT WoS článku

001392471600001

EID výsledku v databázi Scopus

2-s2.0-85212574810