Details

Autor(en) / Beteiligte

• Wang, Fengwen
• Lazarov, Boyan Stefanov
• Sigmund, Ole

Titel

On projection methods, convergence and robust formulations in topology optimization

Ist Teil von

• Structural and multidisciplinary optimization, 2011-06, Vol.43 (6), p.767-784

Ort / Verlag

Berlin/Heidelberg: Springer-Verlag

Erscheinungsjahr

2011

Quelle

SpringerNature Journals

Beschreibungen/Notizen

• 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.