Structural optimization using the cross-entropy method

Marcos Vinicius dos Santos Issa, Americo Cunha Jr, Francisco José da Cunha Pires Soeiro, Anderson Pereira

Resumo


This work aims to evaluate the efficiency and robustness of the cross-entropy (CE) method in the context of structural optimization. A two-dimensional truss subject to vertical loads is used as a benchmark test, where one seeks to minimize the structure weight, respecting a structural integrity criterion. The optimal results obtained via CE are compared with reference solutions, obtained via sequential quadratic programming and genetic algorithm. Numerical experiments demonstrate that CE offers a solution or structural optimization that can be very competitive in terms of accuracy and computational efficiency.


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DOI: https://doi.org/10.5540/03.2018.006.02.0443

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