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Shape optimization of topologically optimized structures using NURBS
Publikationstyp
Conference Paper
Date Issued
2016-10
Sprache
English
Author(s)
Lüdeker, Julian Kajo
TORE-URI
Start Page
39
End Page
50
Citation
DFX 2016: 27th Symposium Design for X: 39-50 (2016-10)
Contribution to Conference
Topology optimization using the solid isotropic material penalization method provides a density distribution, which contains elements with intermediate densities between void and solid. A discrete design is obtained by some geometric interpretation of this result, which is often determined manually. Afterwards, the design is sized with respect to stress, sometimes in the framework of a shape optimization. The current work provides a fully automated routine to obtain a geometric interpretation and parameterization of two dimensional topology optimized structures using non-uniform rational Bezier splines (NURBS), and a shape optimization of the parameterized structure afterwards. Automating both steps reduces development time and cost, and allows embedding them into a larger optimization framework (e.g., multidisciplinary or robustness optimization).
Subjects
NURBS
Shape optimization
Structure mechanics
Topology optimization