Multi-objective topology optimization using the Boundary Element Method.
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2019
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This article aims to explore the application of an evolutionary optimization technique for multi-objective optimization problems using as criteria the minimization of von Mises maximum stress and minimization of the
maximum growth of internal structural strain energy. To evaluate the overall effect on the optimal design
configuration, due to the removal of inefficient material from the structure by using these two optimization
criteria, a goal weighting scheme is adopted, whereby the weight factors emphasize and balance the stress and
strain energy criteria. Also considered in this study was the method of the exponentially weighted criterion for
multi-objective optimization and the Pareto optimal concept. Thus, a contribution is made to the study of these
two methods in the structural optimization procedure using a linear analysis by the Boundary Element Method.
Four examples are presented to demonstrate the ability of the proposed method to solve structural design
problems using multi-objective optimization.
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Multi-objective optimization, Weighted sum, Exponentially weighted criterion, Evolutionary structural optimization
Citação
SIMONETTI, H. L. et al. Multi-objective topology optimization using the Boundary Element Method. Structures, v. 19, p. 84-95, jun. 2019. Disponível em: <https://www.sciencedirect.com/science/article/pii/S2352012418301498>. Acesso em: 13 fev. 2019.