On projection methods, convergence and robust formulations in topology optimization

Publication: Research - peer-reviewJournal article – Annual report year: 2011

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Mesh convergence and manufacturability of topology optimized designs have previously mainly been assured using density or sensitivity based filtering techniques. The drawback of these techniques has been gray transition regions between solid and void parts, but this problem has recently been alleviated using various projection methods. In this paper we show that simple projection methods do not ensure local mesh-convergence and propose a modified robust topology optimization formulation based on erosion, intermediate and dilation projections that ensures both global and local mesh-convergence.
Original languageEnglish
JournalStructural and Multidisciplinary Optimization
Publication date2011
Volume43
Issue6
Pages767-784
ISSN1615-147X
DOIs
StateE-pub ahead of print
CitationsWeb of Science® Times Cited: 71

Keywords

  • Compliant mechanisms, Manufacturing constraints, Topology optimization, Robust design
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