Transient thermal porous structure designed by two-scale concurrent topology optimization

The present paper proposes the novel design framework for thermal porous structure based on two-scale concurrent topology optimization subject to transient heat analysis. The optimization model considers the heat transfer through the microstructure surface to enhance the heat dissipation performance...

Full description

Saved in:
Bibliographic Details
Published inTransactions of the Japan Society for Computational Engineering and Science Vol. 2022; p. 20220004
Main Authors SUKULTHANASORN, Naruethep, KURUMATANI, Mao, NISHIGUCHI, Koji, KATO, Junji, TERADA, Kenjiro
Format Journal Article
LanguageEnglish
Published JAPAN SOCIETY FOR COMPUTATIONAL ENGINEERING AND SCIENCE 14.06.2022
一般社団法人 日本計算工学会
Subjects
Concurrent optimization
Homogenization
Size-effect
Topology optimization
Transient heat analysis
Online AccessGet full text

Cover

More Information
Summary:The present paper proposes the novel design framework for thermal porous structure based on two-scale concurrent topology optimization subject to transient heat analysis. The optimization model considers the heat transfer through the microstructure surface to enhance the heat dissipation performance design. In particular, a well-known homogenization method incorporated the size-dependent term of microscopic heat transfer is exploited to obtain the material properties. Meanwhile, the unsteady-state heat condition is applied to the macrostructure. Furthermore, the heat compliance objective function and the derived analytical sensitivity formulations are adopted to determine the two-scale optimal topologies. As a numerical result, the concurrent design of micro- and macrostructures show the remarkable transient effect. It is also indicated that the microstructure size and the volume constraint are significant parameters for the design of heat performance.
ISSN:1347-8826
DOI:10.11421/jsces.2022.20220004