Seminar Miche Jansen "Robust Topology Optimization "
Wed 16.11.2011 10h45
Room MTM 00.013 (Department of Metallurgy and Materials Engineering, Kasteelpark Arenberg 44, B-3001 Heverlee)
ABSTRACT
During the design process engineers are constantly searching for ways to improve the performance of a structure while keeping manufacturing costs as low as possible. Topology optimization is a powerful tool in this respect as it simultaneously optimizes the size, shape and topology of a structure, often leading to new and original solutions.
This seminar will first introduce the density based approach to topology optimization and show how filters are used to control the structural complexity of the solutions.
The use of topology optimization for structural design often leads to slender structures. Slender structures are very sensitive to geometric imperfections such as the misplacement or misalignment of material. In the second part of the seminar, a methodology for robust topology optimization accounting for geometric imperfections due to misplacement of material is presented. A probabilistic approach to robust optimization is followed where the spatial variation of the geometric imperfections is modeled by means of a conditional vector valued random field in the design domain. The method is successfully applied to design structures which are more robust with respect to geometric imperfections.
