Research on Evolutionary Topology Optimization in ANSYS

Topology optimization function in ANSYS software is inefficient with the limitation of element types. By using the secondary developing language APDL and UIDL, the secondary development of bi-directional evolutionary structural optimization (BESO) method with volume constraint and stiffness maximiza...

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Bibliographic Details
Published in:Key engineering materials 2013-09, Vol.572, p.547-550
Main Authors: Han, Jia Shan, Kong, Ling Cheng, Lin, Lin, Shi, Dong Yan
Format: Article
Language:English
Subjects:
Convergence
Evolutionary
Mathematical analysis
Mathematical models
Maximization
Optimization
Three dimensional
Topology optimization
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Summary:Topology optimization function in ANSYS software is inefficient with the limitation of element types. By using the secondary developing language APDL and UIDL, the secondary development of bi-directional evolutionary structural optimization (BESO) method with volume constraint and stiffness maximization is completed in ANSYS. To suppress the checkerboard patterns, the elemental sensitivity numbers are recalculated by a filter method. To ensure the convergence of the optimization method in ANSYS, the elemental sensitivity numbers are updated by adding in their historical information. Two classic numerical examples are calculated to obtain the best topology structure. The numerical results indicate that the secondary method can solve the 2D and 3D problems effectively, which makes up for the deficiency of topology optimization part in ANSYS and broadens the application scope of the evolutionary optimization method.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.572.547