Design for structural flexibility using connected morphable components based topology optimization

Jia Dong Deng, Wei Chen*

*Corresponding author for this work

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

In topology optimization of structures considering flexibility, degenerated optimal solutions, such as hinges, gray areas and disconnected structures may appear. In this paper, built upon the newly developed morphable component based topology optimization approach, a novel representation using connected morphable components (CMC) and a linkage scheme are proposed to prevent degenerating designs and to ensure structure integrity. A lower bound condition of the thickness of each component is also incorporated to completely remove the smallest components in an optimal configuration. Designs of flexible structures, such as compliant mechanism design, maximum compliance structure design, and design of low-frequency resonating micro devices are studied to validate the proposed methodology. Our work demonstrates that the new methodology can successfully prevent degeneration solutions and possesses other advantages, such as minimum member size control in topology optimization of flexible structures.

Original languageEnglish (US)
Pages (from-to)839-851
Number of pages13
JournalScience China Technological Sciences
Volume59
Issue number6
DOIs
StatePublished - Jun 1 2016

Keywords

  • connected component
  • degenerated designs
  • topology optimization

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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